What's the Weather Where You are?

[Kevin Shaw]

     Gaithersburg Maryland VP2 backyard weather station report for Sunday, December 1, 2013

 

 

Sunday started Decenber out rather peacefully, milder with a good amount of clouds most of the day after one more chilly morning. It should not be as chilly tonight, with the low by sunrise only around 30. Sunny with highs in the upper 40s on Monday, lows in the low 30s. Gradually milder through Thursday, with highs in the 50s and lows in the 30s peaking on Thursday at 60 just ahead of a general rainy period starting Thursday night, along with gradually colder temps, culminating by Sunday with highs only in the mid 30s and a mixed bag of precipitation possible. Stay tuned on that storm!

Sunday's precipitation: 0
November total snowfall: T  
November total precipitation: 2.85"
December total precipitation: 0.00"
Annual YTD precipitation total: 43.43" 

Other data for Sunday is as follows: 
                                                                                                                                                                                             
High temp 45.6° VP2 (1516)(RS 45.5°)  
Low temp 23.0° VP2 (0724)(RS 22.3°) 
Obs temp 38.3° VP2 (RS 38.5°)   
Peak wind gust 5 E (1025)  
Relative Humidity ranged from a max of 93% (0905) to a low of 55% (1522)
Dew point temperatures ranged from 32° to 20°
Barometric pressure values ranged from 30.40"(0005) to 30.04"(2350)
                                                                                                                                 
At midnight obs the temp was 38.3° (VP2), Cldy, Winds Calm,  Pressure at 30.04" and falling, humidity 78%, dew pt of 32°.

Currently at 0220 EST I have a temp of 38.0°(VP2), (38.1° RS), Clear, Winds Calm , Pressure at 30.01" and falling, humidity 80%, dew point of 32°.
 
Radar is clear in the immediate 4 state area, but there is a pretty large area of snow over much of Maine right now, with a bit trickling over into parts of NH, VT, and NY. Also light scattered areas of mixed precip over sections of IL and IA at this time.

Kevin the "chilling Walrus" of Gaithersburg signing off early on this Monday morning.

 

[Kevin Shaw]

    Gaithersburg Maryland VP2 backyard weather station report for Monday, December 2, 2013

 

 

I had one of those combined mental health day along with a bit of gastric distress that kept me home on Monday. Worked a lot on processing November weather data once I got going in the afternoon. Lots to do! The overnight was quite a bit warmer, under cloudy skies. During the day mostly cloudy skies prevailed, with continued mild conditions as we approached the 50 mark for a high temperature. Tonight continues cloudy and mild, with temps still around 40 at 0140. We might drop in the upper 30s by sunrise. Tuesday might see a bit of sun, continued mild with highs once again around 50. Wednesday should be cloudy with high temps in the low 50s, lows above freezing most of the week, in the upper 30s to lower 40s.Thursday may approach 60 for high temps, with a 40 POP for showers to start coming in during the afternoon and lows in the upper 40s. Continued mild and cloudy with a 50-60 POP for rain through Friday night and start cooling down. Saturday should just be cloudy and colder, with highs in the low-mid 40s. Highs in the 30s on Sunday with precipitation probable, with snow, sleet, freezing rain possible.  More on this system as the week progresses.

Tuesday's precipitation: 0
November total snowfall: T  
November total precipitation: 2.85"
December total precipitation: 0.00"
Annual YTD precipitation total: 43.43" 

Other data for Tuesday is as follows: 
                                                                                                                                                                                             
High temp 49.2° VP2 (1353)(RS 49.5°)  
Low temp 37.7° VP2 (0620)(RS 37.6°) 
Obs temp 40.2° VP2 (RS 40.1°)
Peak wind gust 5 NE (1243)  
Relative Humidity ranged from a max of 84% (2218) to a low of 62% (1414)
Dew point temperatures ranged from 38° to 32°
Barometric pressure values ranged from 30.04"(0000) to 29.89"(1311)
                                                                                                                                 
At midnight obs the temp was 40.2° (VP2), Cloudy, Winds Calm,  Pressure at 29.90" and steady, humidity 84%, dew pt of 36°.

Currently at 0234 EST I have a temp of 40.0°(VP2), ( 39.9° RS), Cloudy, Winds Calm , Pressure at 29.91" and steady, humidity 84%, dew point of 36°.
 
Radar is clear in the immediate 4 state area, but there is a pretty large area of snow over much of Wisconsin right now with lighter, scattered showers extending SSE from WI, over parts of IL and IN, There is also a smaller area over parts of Maine.

Kevin the "chilling Walrus" of Gaithersburg signing off early on this Tuesday morning.

[Kevin Shaw]

Gaithersburg Maryland VP2 backyard weather station report for Tuesday, December 3, 2013

 

 

Back to work day, catch up on emails and all sort of work that had come in the past few days, though not much usually comes in over the weekend. The overnight was again quite mild, under cloudy skies. During the day mostly cloudy skies prevailed once again, with even milder conditions than yesterday as we reached the mid 50s for high temperatures. We did get occasional glimpses of sun, at least I saw some on the way into the office in the morning.  Tonight continues cloudy but a tad cooler, as it is already in the mid 30s, but it probably won't go much lower than that since the dew point is at 35. Wednesday should see more clouds once again, with highs in the mid 50s. Milder Wednesday night with patchy drizzle developing in the area, lows in the 40s. Thursday should see the temp really shoot up after morning patchy drizzle, reaching the upper 60s in the afternoon under cloudy skies. Thursday night late should see rain developing (70 POP) with lows in the 40s, then on Friday cloudy with an 80 POP for rain and gradually cooling off into the 50s, then mid 30s Friday night with a continued 80 POP for rain. Cloudy on Saturday with highs in the low-mid 40s, cloudy Saturday night with lows in the 20s, then a mixed bag of snow, sleet, freezing rain developing on Sunday with highs in the mid 30s (50 POP).  Sunday night into Monday should see more precip (50-60 POP) and cold temps, with more mixed precipitation falling, probably mostly just sleet or freezing rain. Eventually by Tuesday we should clear out and remain cold, with highs in the mid 30s. A complex storm that bears watching, I am sure the forecast will change a few more times before we actually get to the weekend. 

Tuesday's precipitation: 0 
December total precipitation: 0.00"
Annual YTD precipitation total: 43.43"  

Other data for Tuesday is as follows:  
                                                                                                                                                                                              
High temp 55.8° VP2 (1508)(RS 55.8°)   
Low temp 37.1° VP2 (2323)(RS 36.7°)  
Obs temp 37.2° VP2 (RS 36.9°)   
Peak wind gust 6 W (1138)   
Relative Humidity ranged from a max of 90% (2353) to a low of 55% (1355)
Dew point temperatures ranged from 41° to 34°
Barometric pressure values ranged from 30.01"(2330) to 29.90"(0123)
                                                                                                                                  
At midnight obs the temp was 37.2° (VP2), Cloudy, Winds Calm,  Pressure at 30.01" and steady, humidity 90%, dew pt of 35°.

Currently at 0236 EST I have a temp of 37.2°(VP2), (36.9° RS), Cloudy, Winds Calm , Pressure at 30.03" and rising, humidity 90%, dew point of 35°.
  
Radar is clear in the immediate 4 state area, but snow can be found over most of the northern half of MI, along with parts of northern WI at this time. 

Kevin the "chilling Walrus" of Gaithersburg signing off early on this Wednesday morning.

 

[Kevin Shaw]

     Gaithersburg Maryland VP2 backyard weather station report for Wednesday, December 4, 2013

 

 

 

The overnight was a bit cooler, but still didn't make it down to the freezing mark, which is about our normal min temp this time of year. Daytime temps were once again in the mid-50s, almost exactly the same value as Tuesday. This evening temps have remained mild, staying in the 50s through the early morning hours of Thursday (current time). We might make it into the upper 40s by sunrise, under continued cloudy skies and possibly some patchy drizzle. A warm front has passed through, and temps on Thursday will be up in the mid 60s with clouds. Rain should develop late Thursday night, and continue all day Friday with cooler temps gradually working into the area, as our high temp of 50 should attest to. Rain Friday night, lows in the 30s. Partly cloudy skies with high temps in the 40s on Saturday, then clouding up on Saturday night and storm 2 should commence with a mixed bag of sleet, freezing rain and snow (30 POP Sat night, changing to a 70 POP for most of the rest of the storm), with temps mostly in the 30s, right around or just above the freezing mark. Eventually the precipitation should change to all rain by Monday before ending Monday night. Highs on Monday in the 30s, lows dropping into the 20s. Tuesday should start clearing off with cold temps in the 30s, outlook for Wednesday right now is clear skies with high temps in the upper 20s, which if it turns out that way may be our coldest weather of the season so far.

Wednesday's precipitation: 0
December total precipitation: 0.00"
Annual YTD precipitation total: 43.43" 

Other data for Wednesday is as follows: 
                                                                                                                                                                                             
High temp 55.7° VP2 (1352)(RS 55.9°)  
Low temp 35.4° VP2 (0654)(RS 35.1°) 
Obs temp 51.4° VP2 (RS 51.8°)
Peak wind gust 7 NE (1807)  
Relative Humidity ranged from a max of 94% (0832) to a low of 75% (1341)
Dew point temperatures ranged from 49° to 33°
Barometric pressure values ranged from 30.11"(1014) to 30.01"(0000)
                                                                                                                                 
At midnight obs the temp was 51.4° (VP2), Cloudy, Winds 1 ENE,  Pressure at 30.08" and steady, humidity 92%, dew pt of 49°.

Currently at 0222 EST I have a temp of 52.0°(VP2), (52.5° RS), Cloudy, Winds Calm , Pressure at 30.07" and steady, humidity 93%, dew point of 50°.
 
Radar is mainly clear throughout much of the Eastern U.S. at this time, there are some scattered, very light mixed showers around the Toronto area, and also in parts of upstate NY. There are also some scattered light showers offshore in the Atlantic off of the NC coast.

Kevin the "Walrus" of Gaithersburg signing off early on this Thursday morning.

 

[Kevin Shaw]

       Gaithersburg Maryland VP2 backyard weather station report for Thursday, December 5, 2013

 

 

The overnight was really warm, staying above 50 with temps actually rising through the night. Cloudy overnight, but then in the mid-late morning the sun started to peep out through the clouds, and by mid-day we had quite a bit of sun, with temps rising well into the 60s in the afternoon hours. It has remained in the 60s all evening and into the early morning hours of Friday. We had some spotty drizzle during the evening, and just had a light shower within the hour (0.02" on the VP2 gauge). Just cloudy again now. Rain is not too far to the west, and should envelope our area sometime in the morning hours continuing through the day. Temps will remain mild overnight, but start to drop off during the day on Friday, as the colder air starts to gradually move in. 90 POP for rain on both Friday and Friday night. Temps on Friday night should drop into the 30s. Clearing somewhat on Saturday with a high of only 40 or so, lows in the 20s. Sunday should turn cloudy and round 2 of the storms should commence as a period of snow, then change/mix with sleet/freezing rain and continued the rest of Sunday into the evening, then moderate overnight and into Monday with just light rain and highs during the day on Monday in the 40s. Tuesday through Thursday should see clearing skies and the most extended period of cold weather so far this season, with highs around freezing and lows in the teens to around 20. It will be quite a drastic change to what we have been having the past few days. But it is December, after all! 

Thursday's precipitation: T 
December total precipitation: T
Annual YTD precipitation total: 43.43"  

Other data for Thursday is as follows:  
                                                                                                                                                                                              
High temp 68.3° VP2 (1439)(RS 68.4°)   
Low temp 51.3° VP2 (0002)(RS 51.8°)  
Obs temp 63.6° VP2 (RS 64.2°)   
Peak wind gust 11 W (1426)   
Relative Humidity ranged from a max of 97% (0849) to a low of 74% (1403)
Dew point temperatures ranged from 62° to 49°
Barometric pressure values ranged from 30.08"(0000) to 29.93"(2339)
                                                                                                                                  
At midnight obs the temp was 63.6° (VP2), Cloudy/spotty drizzle, Winds 5 W,  Pressure at 29.93" and falling, humidity 93%, dew pt of 62°.

Currently at 0209 EST I have a temp of 63.0°(VP2), (63.3° RS), Cloudy, Winds 1 SW , Pressure at 29.89" and falling, humidity 96%, dew point of 62°.VP2 rain since midnight 0.02"
  
Radar is showing our light shower from an hour ago moving off to the east, but a much larger area of rain poised to move in from much of West Virginia and western/SW Virginia at this time. Snow can be found in MI and WI well west and north. 

Kevin the walrus of Gaithersburg signing off early on this Friday morning.

 

[Kevin Shaw]

  Gaithersburg Maryland VP2 backyard weather station report for Friday, December 6, 2013

 

 

Friday was our wettest December day so far, with warm temps at the outset and then falling temps most of the day, through the low 60s into the 50s then into the 40s and then finally into the 30s by evening. Rain fell in spurts on and off all day, heaviest around 11:00 AM, a bit steadier though pretty light in the evening. Rain continued to fall for a few hours after midnight into early Saturday morning, but has stopped for the past few hours and we should start to dry out, though we still have very high relative humidity right now. Temps should reach the low 30s by sunrise. Saturday should see partly cloudy skies with highs around 40 or so. Clouding up late Saturday night after dropping into the 20s, setting up our frozen precipitation scenario on Sunday. A winter storm watch has been posted for the frozen precipitation starting early Sunday and extending into early Monday morning. We may have a few inches of accumulation of snow and ice on Sunday. Snow should start to fall in the morning, changing to freezing rain or sleet in the afternoon, and quite possibly sticking around into the evening before changing to rain as slightly warmer air comes into the system. 30s for highs on Sunday, holding in the 30s Sunday overnight, then into the low 40s on Monday with light rain. Tuesday through Saturday should see sunny to partly cloudy skies, blustery at times, and cold with high temps around freezing each day, with lows in the upper teens to low twenties each night.

 

Friday's precipitation: 1.30" (LR) 1.41" (VP2) 4.24" Max Rain Rate (MRR) @ 1102
December total precipitation: 1.30"
Annual YTD precipitation total: 44.73" (I believe this amount has an old error from July that will require adjustment - I am researching the errors and should be making an adjustment to this amount tomorrow night)

 

Other data for Friday is as follows: 

High temp 63.8° VP2 (0017)(RS 64.4°) 
Low temp 37.2° VP2 (2334)(RS 37.2°) 
Obs temp 37.2° VP2 (RS 37.2°) 
Peak wind gust 16 NW (0652) 
Relative Humidity ranged from a max of 97% (0333) to a low of 91% (0608)
Dew point temperatures ranged from 62° to 36°
Barometric pressure values ranged from 30.20"(2156) to 29.87"(0442)

At midnight obs the temp was 37.2° (VP2), Cloudy/light rain, Winds 6 N, Pressure at 30.16" and rising, humidity 96%, dew pt of 36°.

 

Currently at 0501 EST I have a temp of 36.0°(VP2), (36.1° RS), Cloudy, Winds 5 NNW , Pressure at 30.27" and rising, humidity 95%, dew point of 35°. VP2 rain since midnight 0.19"

Radar is showing our rain activity from Friday and earlier this morning has moved off to the south and east. Areas of snow can be seen in sections of NY and New England at this time.

 

Kevin the wet walrus of Gaithersburg signing off early on this Saturday morning.

 

[Kevin Shaw]

Gaithersburg Maryland VP2 backyard weather station report for Saturday, December 7, 2013

Saturday was our coldest December day so far, with the max temperature barely getting over 40, and the lowest

temps for the day found right at the end of the day, just prior to obs. Light rain fell over the first few hours of

the day, but most of the day was partly cloudy with increasing high clouds noted in the afternoon and evening

from our next storm system that will be adversely affecting the region on Sunday. So far overnight the

temperature continues to drop through the upper 20s despite a thin cloud deck and high barometric pressure

that has remained around 30.56" all evening/early morning Sunday. A Winter Storm Warning has been issued for

my home county (Montgomery) and most counties west and north of me from 8 AM Sunday till 10 AM Monday.

Forecast has Sunday late morning as the start time for snow to spread over the area, changing to sleet in the

early PM, then changing over to freezing rain in the mid-late PM and continuing into the overnight, eventually

changing over to plain rain sometime on Monday morning before ending later in the day. Temps will be in the 30s

during the day and evening on Sunday, rising to around 40 eventually sometime on Monday. Monday evening there

is still a 40 POP (prior to that we have basically a 100 POP for precip from Sunday on) Then on Tuesday with

highs in the 30s there is a 50 POP for snow from a secondary storm that they think will be developing at the tail

end of this whole system. Wednesday through Friday will remain cold, with highs around freezing or a bit below

and lows in the upper teens to low 20s. A cold, stormy period during the upcoming week, much more of a winter

pattern which puts you more in the holiday spirit. Snow/sleet accumulations for my backyard and immediate area

around Gaithersburg is about an inch with possibly as much as 2-3 inches if we are lucky to get in the heavier

precip bands while temps are still in the 20s or at least below freezing. A prediction I have also seen is for about

0.25" of accumulated ice during the freezing rain interlude. 

Saturday's precipitation: 0.13"(LR) 0.19"(VP2) 0.42" Max Rain Rate (MRR) @ 0027
December total precipitation: 1.43"
Annual YTD precipitation total: 44.86" (I believe this amount has an old error from July that will require adjustment - I am still researching the errors and should be making an adjustment to this amount real soon.)  

Other data for Saturday is as follows:  
                                                                                                                                                                                             
High temp 41.0° VP2 (1315)(RS 40.5°)   
Low temp 30.1° VP2 (2358)(RS 29.7°)  
Obs temp 30.1° VP2 (RS 29.7°)   
Peak wind gust 16 NW (1147)   
Relative Humidity ranged from a max of 97% (0104) to a low of 66% (1522)
Dew point temperatures ranged from 36° to 23°
Barometric pressure values ranged from 30.57"(2353) to 30.15"(0015)
                                                                                                                                  
At midnight obs the temp was 30.1° (VP2), High Clouds, Winds 1 NNW,  Pressure at 30.56" and steady, humidity 76%, dew pt of 23°.

Currently at 0550 EST I have a temp of 27.9°(VP2), (27.5° RS), Cloudy, Winds 3 NNE, Pressure at 30.59" and rising, humidity 73%, dew point of 20°.
  
Radar is showing our precipitation activity just to the west, but based on how dry we are right now, I don't think the snow will be reaching the ground for a few more hours till the atmospheric column can get fully saturated. Currently the line between snow and mixed precipitation is on a WSW-ENE line cutting just south of Washington DC from Virginia. Like I said I have my doubts that the precipitation is reaching the ground in the DC region at this time.

Kevin the cool walrus of Gaithersburg signing off early on this Sunday morning.

 

[Kevin Shaw]

Gaithersburg Maryland VP2 backyard weather station report for Sunday, December 8, 2013

 

 

Sunday was the day of our first major snow of the season. Not really a lot, just a nice conversational, enjoyable-to-play-in snow that fell in the late morning/early afternoon hours that changed to mostly freezing rain with a bit of sleet around 2 PM and lasted most of the rest of the day. Areas a few miles to my N and W got more snow- in the neighborhood of 6-8 inches in places. We stayed around 26-27 temperature most of the day, but started to rise in the evening up into the low 30s by midnight.  Freezing rain is expected overnight (100 POP) that will be changing over to plain rain by mid-morning in my immediate area.  We are still under a Winter Storm Warning till 10 AM on Monday. Areas to my N and W will stay freezing a bit longer and continue to have travel problems longer into the day on Monday. Precipitation should continue through most of the day (90 POP) and wind up in the evening sometime. We might see another round of snow on Tuesday morning and then we may see some sun in the afternoon. Max temperatures this whole week should be in the 30-35 range with lows in the upper teens to lower 20s. It should be sunny to partly cloudy Wednesday through Friday. Over the weekend we may see more clouds than sun and a 30-40 POP for more snow possible.  A nice wintry pattern to get us all into a nice holiday mood during the coming week. 

Sunday's precipitation: 0.61"(LR) M (VP2 - snow doesn't melt through on this device as I don't have a heater installed with it) 
December total precipitation: 2.04"
Sunday snowfall: 2.6" 
Midnight snowfall on ground (nearest inch): 2" 
Annual YTD precipitation total: 45.47" (I believe this amount has an old error from July that will require adjustment - I am still researching the errors and should be making an adjustment to this amount real soon.)  

Other data for Sunday is as follows:  
                                                                                                                                                                                              
High temp 30.8° VP2 (2340)(RS 30.7°)   
Low temp 26.7° VP2 (1249)(RS 26.2°)  
Obs temp 30.8° VP2 (RS 30.7°)   
Peak wind gust 10 NW (0801)   
Relative Humidity ranged from a max of 96% (2324) to a low of 72% (0603)
Dew point temperatures ranged from 30° to 20°
Barometric pressure values ranged from 30.62"(1002) to 30.32"(2343)
                                                                                                                                  
At midnight obs the temp was 30.8° (VP2), Cloudy, Winds 1 NNW,  Pressure at 30.34" and falling, humidity 96%, dew pt of 30°.

Currently at 0305 EST I have a temp of 31.9°(VP2), (32.2° RS), Cloudy, Winds Calm, Pressure at 30.22" and falling, humidity 96%, dew point of 31°.
  
Radar is showing our regional precipitation activity still around, more to my SW, and much more moved off to the E and NE. Most of it is still showing up as freezing precipitation, mostly freezing rain. 

Kevin the somewhat snowywalrus of Gaithersburg signing off early on this Monday morning.

 

[Kevin Shaw]

     Gaithersburg Maryland VP2 backyard weather station report for Monday, December 9, 2013

 

 

Monday was the calm in between the two storms of Sunday and Tuesday.the day of our first major snow of the season. The day remained cold and damp - I don't remember a day when the relative humidity only varied all day by 1 percent! We had some light freezing rain and rain overnight into the morning hours, then just cloudy in the pm, with fog, occasionally dense, forming in the evening. We had been under a dense fog advisory (till 3 AM) then the WINTER STORM WARNING kicked in at 3 AM and lasts till 2 PM. 4-6 inches of snow is the latest forecast I have heard for this fast moving storm. The snow should be all over by mid-day.  It should be all snow or mostly all snow with just a bit of sleet, more likely to form at the beginning of the storm if at all. It should start in a few hours. Winds remain light. The rest of the week will be cold and dry, with high temps in the upper 20s to lower 30s, lows in the upper teens to lower 20s.  A nice wintry pattern to get us all into a nice holiday mood during the coming week.

Monday's precipitation: 0.35"(LR) M (VP2 - snow doesn't melt through on this device as I don't have a heater installed with it)
December total precipitation: 2.39"
Monday snowfall: 0"
Midnight snowfall on ground (nearest inch): 1"
December monthly snowfall: 2.6" 
Annual YTD precipitation total: 45.82" (I discovered 2 data errors in my July report, adjustments have been made to my record, including this one)

Other data for Monday is as follows: 
                                                                                                                                                                                             
High temp 34.3° VP2 (1313)(RS 34.0°)  
Low temp 30.8° VP2 (0000)(RS 30.7°) 
Obs temp 30.8° VP2 (RS 30.7°)  
Peak wind gust 4 W (1352)  
Relative Humidity ranged from a max of 97% (0906) to a low of 96% (0000)
Dew point temperatures ranged from 34° to 30°
Barometric pressure values ranged from 30.34"(0000) to 30.05"(1329)
                                                                                                                                 
At midnight obs the temp was 32.3° (VP2), Cloudy/Foggy, Winds Calm,  Pressure at 30.09" and falling, humidity 97%, dew pt of 32°.

Currently at 0356 EST I have a temp of 31.8°(VP2), (31.8° RS), Cloudy/Light fog, Winds Calm, Pressure at 30.05" and falling, humidity 97%, dew point of 31°.
 
Radar is showing mixed precip overhead but not reaching the ground yet. Moving in from Virginia to the W and SW and pretty fast. It should start snowing here within the next hour or two.

Kevin the somewhat snowywalrus of Gaithersburg signing off early on this Tuesday morning.

 

[Kevin Shaw]

     Gaithersburg Maryland VP2 backyard weather station report for Tuesday, December 10, 2013

 

 

 

Tuesday morning started out kind of oddly with very light winds and fog - some dense - covered by a dense fog advisory till 3 AM. I thought that to be a bit odd just before a snowstorms was supposed to start. The light part of Tuesday morning was spent sleeping in since OPM called our offices closed for the day due to the snow that actually had not started to fall yet when they made the decision around 4 AM. While I was sleeping snow fell, but not quite as much as hoped for/predicted. Most of Montgomery County got between 2 and 3 inches. There was a bit more to our north and west once again, particularly up in Frederick and Baltimore counties with around 5 inches. We were under a WINTER STORM WARNING till 2 PM, but it really was mostly over by 11:30 AM or thereabouts. The snow was definitely over by noon or so, and the sun came out in the afternoon. All with light winds, temps climbed a bit but not much - only into the mid 30s. Tonight under clear skies the temps are supposed to really drop, into the upper teens, but so far have only dropped into the upper 20s. But that is cold enough to turn the melted snow water into ice, and getting my rain gauge was a bit scary on the ice.  The rest of the week should be cold and clear - particularly cold and windy with low wind chills on Thursday, with high temps at most up to 30 and lows in the teens. Moderating a bit by Friday then even more on Saturday, as our next storm approaches us with a 90 POP on Saturday and 80 POP on Saturday night, with mixed precip or snow starting on Saturday during the day sometime and continuing into Saturday night, perhaps just rain near the end as some warm air works in briefly. We should be up around 40 on Saturday, but back in the 30s on Sunday under partially clearing skies, then cold and clear as we start the new workweek.

Tuesday's precipitation: 0.21"(LR) M (VP2 - snow doesn't melt through on this device as I don't have a heater installed with it)
December total precipitation: 2.60"
Tuesday snowfall: 2.2"
Midnight snowfall on ground (nearest inch): 2"
December monthly snowfall: 4.8" 
Annual YTD precipitation total: 46.03"

Other data for Tuesday is as follows: 
                                                                                                                                                                                             
High temp 36.0° VP2 (1406)(RS 35.4°)  
Low temp 28.1° VP2 (2146)(RS 27.9°) 
Obs temp 29.0° VP2 (RS 28.8°)
Peak wind gust 14 SW (1754)  
Relative Humidity ranged from a max of 98% (0547) to a low of 70% (2324)
Dew point temperatures ranged from 35° to 21°
Barometric pressure values ranged from 30.25"(2358) to 30.01"(0956)
                                                                                                                                 
At midnight obs the temp was 29.0° (VP2), Clear, Winds 5 SSW,  Pressure at 30.25" and rising, humidity 72%, dew pt of 21°.

Currently at 0246 EST I have a temp of 28.7°(VP2), (28.2° RS), Clear, Winds Calm, Pressure at 30.32" and rising, humidity 72%, dew point of 21°.
 
Radar is showing snow showers in the usual Lake-Effect areas in the Great Lakes, plus an area of snow in parts of Illinois and Iowa.

Kevin the somewhat "snowy walrus" of Gaithersburg signing off early on this Wednesday morning

 

[Kevin Shaw]

Gaithersburg Maryland VP2 backyard weather station report for Wednesday, December 11, 2013

Wednesday morning got me out and back to work. I was worried about the icy sidewalk on the way out to the car

but it wasn't too bad in the morning as I could see where the patches were. This evening on the way in from the

car, it wasn't so easy to see in the dark, and it was quite harrowing. There are dry spots but hard to see where in

the dark. We warmed up under mostly sunny skies today to almost 40 and there was some melting, which started

to freeze very soon after sunset as the temp dropped quickly. Later on this evening the temp stopped dropping

for a while as the wind pickted up a bit and clouds came in a bit, with scattered snow flurries in the area coming

in on our strong ARCTIC front that may give us  our coldest day yet on Thursday, complete with low wind chills on

brisk NW winds at times.  Temps under sunny skies probably won't get out of the mid 20s, and our high

temperature for the day will probably occur during the first few hours of the day. It should be dropping later on

in the overnight and may be in the upper teens or lower 20s by sunrise. Thursday night should see another big

drop, lowering into the teens by early Friday morning. Friday during the day should actually warm up as the HIGH

is moving quickly and sliding off the coast, putting us into a return flow of more southerly, milder air.  Saturday

looks to be unsettled, with possible mixed precipitation or rain, depending on what temperatures we get. Sunday

should clear off and stay seasonably cold with high temps in the upper 30s. Seasonably cold temps should be the

rule in the first part of the new week, with no more storms, clear, sunny weather. 

Wednesday's precipitation: 0 
December total precipitation: 2.60"
Wednesday snowfall: 0 
Midnight snowfall on ground (nearest inch): 1"
December monthly snowfall: 4.8"  
Annual YTD precipitation total: 46.03" 

Other data for Wednesday is as follows:  
                                                                                                                                                                                              
High temp 39.4° VP2 (1458)(RS 37.9°)   
Low temp 24.1° VP2 (2333)(RS 23.5°)  
Obs temp 24.2° VP2 (RS 23.5°)   
Peak wind gust 11 NW (0555)   
Relative Humidity ranged from a max of 90% (2338) to a low of 53% (1422)
Dew point temperatures ranged from 25° to 18°
Barometric pressure values ranged from 30.43"(0938) to 30.23"(0035)
                                                                                                                                  
At midnight obs the temp was 24.2° (VP2), PCldy, Winds 1 WNW,  Pressure at 30.28" and steady, humidity 90%, dew pt of 22°.

Currently at 0227 EST I have a temp of 29.3°(VP2), (29.3° RS), Cldy, Winds 2 NNW, Pressure at 30.32" and rising, humidity 78%, dew point of 23°.
  
Radar is showing scattered snow flurries in north and central Maryland at the present time. Nothing observed here at my station so far. 

Kevin the somewhat "snowy walrus" of Gaithersburg signing off early on this Thursday morning.

 

[Kevin Shaw]

Gaithersburg Maryland VP2 backyard weather station report for Thursday, December 12, 2013

Thursday morning was cold and cloudy, but not as cold as predicted as I didn't drop down into the teens.

Elsewhere some spots did, but the cloud deck overnight and some winds kept things stirred up and it just

couldn't get as cold as expected. I managed to rise to the freezing mark by mid-afternoon, but this evening

temps are finally dropping. Early Friday morning now and the temps are in the low 20s, and we should reach the

teens by morning. Friday the winds will veer around more to the SW direction, and bring in milder air, with high

temps up around the 40 mark. Saturday is still up in the air as far as type of precipitation, though rain may very

well take over by Saturday evening after an afternoon of snow or snow mixed with sleet and minor accumulations

possible. A 90 POP for both Saturday during the day and Saturday evening. Highs/lows in the 30s, not too far

above the freezing mark during the day but around it in the evening/overnight. Thereafter the following days

should be seasonable with highs in the low 40s and lows in the 20s, except for Monday which will be a bit colder

with highs in the low to mid 30s and lows around 20.  No real organized areas of precipitation are expected in our

area after Saturday.  

Thursday's precipitation: 0 
December total precipitation: 2.60"
Wednesday snowfall: 0 
Midnight snowfall on ground (nearest inch): 1"
December monthly snowfall: 4.8"  
Annual YTD precipitation total: 46.03" 

Other data for Thursday is as follows:  
                                                                                                                                                                                     
High temp 32.4° VP2 (1454)(RS 31.1°)   
Low temp 22.0° VP2 (2339)(RS 21.4°)  
Obs temp 22.1° VP2 (RS 21.4°)   
Peak wind gust 17 NW (0633)   
Relative Humidity ranged from a max of 91% (0016) to a low of 41% (1528)
Dew point temperatures ranged from 24° to 8°
Barometric pressure values ranged from 30.46"(0950) to 30.27"(0018)
                                                                                                                                  
At midnight obs the temp was 22.1° (VP2), Clear, Winds Calm,  Pressure at 30.27" and falling, humidity 72%, dew pt of 14°.

Currently at 0213 EST I have a temp of 20.8°(VP2), (20.1° RS), Clear, Winds Calm, Pressure at 30.26" and falling, humidity 78%, dew point of 15°.
  
Radar is showing scattered snow flurries in parts of the usual lake effect snow spots along the Great Lakes shores of NY, PA, OH, MI and WI currently.  

Kevin the somewhat "colder walrus" of Gaithersburg signing off early on this Friday morning.

[Kevin Shaw]

Gaithersburg Maryland VP2 backyard weather station report for Friday, December 13, 2013

 

Friday morning was cold and somewhat cloudy, temps were cold but not as cold as I had anticipated. Trough the

day we had periods of high clouds, as our Saturday storm started to approach from the south. Friday evening

clouds increased and started to lower, and that kept a link on the temps all evening, slowly creeping up through

the low 30s.  Currently our immediate region is under a WINTER WEATHER ADVISORY from 8 AM Saturday to

1 AM Sunday. Snow should break out mid-morning, accumulate a bit (probably an inch or less) then change over to

sleet and/or freezing rain in the afternoon and evening, then perhaps to all rain later on in the evening before

ending. The ever-critical temperatures should remaing in the 30s on Saturday, but generally be above the

freezing mark. Sunday should see a return of the sun and seasonable, with highs in the low 40s. Lows Sunday

night into the 20s. Monday will be a bit chillier with highs in the low-mid 30s, lows around 20. The rest of the

week should be sunny to partly cloudy, with highs climbing through the 40s into the low 50s by Friday, lows

mostly in the 20s. 

Friday's precipitation: 0 
December total precipitation: 2.60"
Friday snowfall: 0 
Midnight snowfall on ground (nearest inch): 1"
December monthly snowfall: 4.8"  
Annual YTD precipitation total: 46.03" 

Other data for Friday is as follows:  
                                                                                                                                                                                              
High temp 40.6° VP2 (1323)(RS 39.7°)   
Low temp 19.8° VP2 (0604)(RS 19.2°)  
Obs temp 30.4° VP2 (RS 30.0°)   
Peak wind gust 16 NW (1216)   
Relative Humidity ranged from a max of 82% (0336) to a low of 39% (1332)
Dew point temperatures ranged from 26° to 14°
Barometric pressure values ranged from 30.34"(2248) to 30.24"(1507)
                                                                                                                                  
At midnight obs the temp was 30.4° (VP2), Cloudy, Winds Calm,  Pressure at 30.33" and steady, humidity 82%, dew pt of 26°.

Currently at 0512 EST I have a temp of 31.1°(VP2), (30.7° RS), Cloudy, Winds Calm, Pressure at 30.33" and steady, humidity 83%, dew point of 26°.
  
Radar is showing precipitation overspreading the area, but not reaching the ground yet. Areas north and west of DC show up with a mixed precip color, with snow showing in parts of western VA and WV. Rain is showing in its blue color south and SW of DC at this time.  

Kevin the snowywalrus of Gaithersburg signing off early on this Saturday morning.

 

[Kevin Shaw]

       Gaithersburg Maryland VP2 backyard weather station report for Saturday, December 14, 2013

 

 

Saturday morning warmed up a bit during the overnight hours as our storm drew near from the SW.  I was sleeping throughout the morning but I did observe light snow (non-accumulating) in the late morning hours. Then around 1530 or thereabouts heavier, accumulating snow started to fall, with big fat wet snowflakes. That didn't last very long, less than a half an hour, but it did accumulate a bit on car tops and the old snow cover. Mixed in with sleet and freezing rain,  the snow changed over thereafter. It continued to warm into the mid 30s (mostly around 34) into the evening, and all the precipitation turned over to just plain light rain. The rain ended in the last evening, a bit before midnight obs. The snow that did fall around 1530 all melted prior to midnight.  Temps are holding just above freezing, and no freezing was noted in the backyard a few minutes ago. It is still cloudy. There are some patches of fog around the region, but none noted here at the present time or before. We might make it down to the freezing mark by sunrise. Sunday should be cloudy in the morning but clear off and be mostly sunny in the afternoon, with highs in the low 40s. Lows Sunday night and Monday night should be in the low 20s. Monday should be the coldest day of the week, with highs around freezing under cloudy skies. Tuesday should start a warm up under cloudy skies, with highs in the low 40s. Lows in the 30s. Wednesday and Thursday should find max temps rising well into the 40s under sunny skies. Thursday night should find clouds returning, milder in the evening with lows in the 40s, then cloudy and mild on Friday, 30 POP for showers with highs well up into the 50s, As they often say,if you don't like the weather today,there is always tomorrow and the next day...

Saturday's precipitation: 0.40" (LR)  M (VP2) 
December total precipitation: 3.00"
Saturday snowfall: 0.3" 
Midnight snowfall on ground (nearest inch): 1"
December monthly snowfall: 5.1"  
Annual YTD precipitation total: 46.43" 

Other data for Saturday is as follows:  
                                                                                                                                                                                            
High temp 38.2° VP2 (1117)(RS 37.9°)   
Low temp 30.3° VP2 (0010)(RS 30.0°)  
Obs temp 34.1° VP2 (RS 34.0°)   
Peak wind gust 13 NE (1115)   
Relative Humidity ranged from a max of 97% (2331) to a low of 72% (1107)
Dew point temperatures ranged from 34° to 25°
Barometric pressure values ranged from 30.35"(0837) to 29.74"(2357)
                                                                                                                                  
At midnight obs the temp was 34.1° (VP2), Cloudy, Winds 3 NNW, Pressure at 29.74" and falling, humidity 96%, dew pt of 33°.

Currently at 0535 EST I have a temp of 32.5°(VP2), (32.5° RS), Cloudy, Winds Calm, Pressure at 29.68" and rising, humidity 97%, dew point of 32°.
  
Radar is showing precipitation still sticking around, perhaps some not reaching the ground. No precipitation noted here at my station since mid Saturday evening.  Mixed precip/rain line shows quite close to my station to the SE. Moving out slowly to the E and NE. 

Kevin the "wet walrus" of Gaithersburg signing off early on this Sunday morning.

 

[Kevin Shaw]

Gaithersburg Maryland VP2 backyard weather station report for Sunday, December 15, 2013

 

 

Sunday morning dawned sunny by the time I woke up late in the AM, and warmed up a bit more under the sunny skies in the afternoon, into the mid 40s. Tonight we slipped down into the upper 20s in the late evening but started to warm up before obs and have continued to do so early this Monday morning into the mid 30s. Wind has picked up also at times as clouds have also increased. There are some snow showers up in PA that might get close enough to our area late Monday evening into Tuesday morning. Monday should be colder, with highs in the low-mid 30s, dropping into the 20s early Tuesday morning. Tuesday evening may also see a round of light snow showers, all out of a clipper that is tracking close but probably north of our area on Tuesday. Wednesday through Friday should be sunny at first, highs in the 40s but warming into the 50s on Friday under cloudy skies. Lows should be mostly in the 30s from Wednesday through Friday.

 

Sunday's precipitation: 0
December total precipitation: 3.00"
Sunday snowfall: 0
Midnight snowfall on ground (nearest inch): T (0.5" for cocorahs)
December monthly snowfall: 5.1" 
Annual YTD precipitation total: 46.43"

Other data for Sunday is as follows: 

High temp 43.6° VP2 (1239)(RS 43.7°) 
Low temp 29.3° VP2 (2217)(RS 28.4°) 
Obs temp 31.5° VP2 (RS 31.5°) 
Peak wind gust 21 NW (1228) 
Relative Humidity ranged from a max of 98% (0913) to a low of 64% (1410)
Dew point temperatures ranged from 39° to 23°
Barometric pressure values ranged from 29.96"(2319) to 29.65"(0234)

 

At midnight obs the temp was 31.5° (VP2), Cloudy, Winds Calm, Pressure at 29.96" and rising, humidity 80%, dew pt of 26°.

 

Currently at 0248 EST I have a temp of 35.3°(VP2), (35.2° RS), Cloudy, Winds 7 SW, Pressure at 30.01" and rising, humidity 69%, dew point of 26°.

Radar is showing light snow showers widely scattered through Pennsylvania to our north at this time. They are mostly moving west to east. More snow shower action also can be found in scattered areas out in the midwest, associated with the clipper headed this way late Monday/early Tuesday.

 

Kevin the walrus of Gaithersburg signing off early on this Monday morning.

 

[Kevin Shaw]

         Gaithersburg Maryland VP2 backyard weather station report for Monday, December 16, 2013

Monday morning was a damp chilly one, but only a bit lower than the freezing mark. The day hit a max temp only into the mid 30s under partly cloudy skies and a few flurries falling around the area, but not at my location, continuing into the evening. Temps have stayed in the 30s. Over the past hour or so, we got a light snow shower (after midnight obs) that has accumulated a bit on cars, but not on the roads. The snow showers have moved off to the east over the past few minutes. There is a 50 POP for snow overnight and into Tuesday morning. Lows might make it down into the upper 20s by sunrise, then rise up around 40 by Tuesday afternoon with diminishing snow shower chances. Wednesday through Friday should see sunny to partly sunny skies, and moderating temps, in the 40s on Wednesday warming into the 50s by Friday. Rain chances increase on Friday (40 POP late) and then a 50 POP for rain showers over the weekend with temps on Sat in the 50s but lowering to the 40s on Sunday. Lows mostly in the 30s but 40s on Saturday night and perhaps 20s overnight Sunday into Monday.

Monday's precipitation: 0
December total precipitation: 3.00"
Monday snowfall: 0
Midnight snowfall on ground (nearest inch): T
December monthly snowfall: 5.1" 
Annual YTD precipitation total: 46.43"

Other data for Monday is as follows: 
                                                                                                                                                                                             
High temp 36.5° VP2 (1457)(RS 35.8°)  
Low temp 30.6° VP2 (0928)(RS 30.6°) 
Obs temp 33.2° VP2 (RS 33.3°)  
Peak wind gust 14 SW (0318)  
Relative Humidity ranged from a max of 80% (0000) to a low of 63% (1452)
Dew point temperatures ranged from 27° to 21°
Barometric pressure values ranged from 30.21"(1943) to 29.96"(0000)
                                                                                                                                 
At midnight obs the temp was 33.2° (VP2), Cloudy, Winds 3 ENE, Pressure at 30.19" and steady, humidity 74%, dew pt of 26°.

Currently at 0155 EST I have a temp of 32.3°(VP2), (32.4° RS), Cloudy, Winds 5 E, Pressure at 30.15" and falling, humidity 83%, dew point of 28°.
 
Radar is showing light snow showers up in central and western PA, moving SE towards our area, and also what has already fallen has moved off to the E and S from here.

Kevin the walrus of Gaithersburg signing off early on this Tuesday morning.

[Kevin Shaw]

Gaithersburg Maryland VP2 backyard weather station report for Tuesday, December 17, 2013

 

Tuesday morning started out with a surprise light snow shower that accumulated a bit on my car top right after

midnight. By morning, when it warmed from 32 to 33, the little bit had melted. It was a cloudy day mostly,  and in

the evening on the way home from work we had some more light snow showers, with some sleet falling also that

showed up on our car top and also at the top of the fence where my rain gauge is mounted. Very light, and did not

stick to the roads. From radar, it doesn't look like any more will fall overnight. Tomorrow starts a big warmup,

with highs in the low 40s tomorrow rising to 60 by Friday, and into the 60s over the weekend with lows in the

30s on Wednesday rising to the 40s on Friday and Saturday. Sunny through Thursday, then getting cloudy on

Friday with rain showers developing over the weekend, with a 50 POP on Sat increasing to a 60 POP on Sunday,

a 70 POP on Sunday night, then dropping down to a 40 POP on Monday with a cold front finally pulling through and

temps dropping to more seasonable levels early next week, with highs in the 40s and lows in the 20s to around

30.  

Tuesday's precipitation: 0.03" (LR) 0.03" (VP2)  
December total precipitation: 3.03"
Tuesday snow/sleetfall: 0.2" 
Midnight snowfall on ground (nearest inch): T 
December monthly snowfall: 5.3"  
Annual YTD precipitation total: 46.46" 

Other data for Tuesday is as follows:  
                                                                                                                                                                                      
High temp 37.5° VP2 (1551)(RS 37.4°)   
Low temp 32.1° VP2 (0058)(RS 32.2°)  
Obs temp 32.3° VP2 (RS 32.4°)   
Peak wind gust 7 E (0251)   
Relative Humidity ranged from a max of 90% (2210) to a low of 74% (0000)
Dew point temperatures ranged from 33° to 26°
Barometric pressure values ranged from 30.19"(0000) to 29.96"(1556)
                                                                                                                                  
At midnight obs the temp was 32.3° (VP2), Clear/scat clouds, Winds 2 ENE, Pressure at 30.02" and rising, humidity 90%, dew pt of 30°.

Currently at 0239 EST I have a temp of 29.9°(VP2), (29.7° RS), Clear/Scat clouds, Winds Calm, Pressure at 30.05" and rising, humidity 90%, dew point of 27°.
  
Radar is still showing light snow showers scattered about the region, mostly to the E and up in PA, moving away from my area. 

Kevin the walrus of Gaithersburg signing off early on this Wednesday morning.

 

[Kevin Shaw]

Gaithersburg Maryland VP2 backyard weather station report for Wednesday, December 18, 2013

On Wednesday the morning low temperature was just above freezing, similar to Monday morning. Clouds gave way to mostly sunny skies most of the day as the high temp barely got over 40 by afternoon with good breezes at times, particularly during the midday hour. Wednesday evening the temperature dropped off nicely, and right now early on Thursday morning the temp is in the mid 20s. We might get into the low 20s by sunrise. Thursday will warm with sun up to around 50, above the long term normal for this time of year.  The warmup continues through most of the weekend, with sunny skies through part of Saturday, highs approaching 60 on Friday then into the 60s over the weekend. Shower chances increase late Saturday and especially into late Sunday/early Monday. Gradually getting cooler on Monday, highs back down into the 50s, then seasonable around 40 on Tuesday and thereafter into Xmas. No white Christmas this year for our area!  

Wednesday's precipitation: 0  
December total precipitation: 3.03"
Wednesday snow/sleetfall: 0 
Midnight snowfall on ground (nearest inch): 0 
December monthly snowfall: 5.3"  
Annual YTD precipitation total: 46.46" 

Other data for Wednesday is as follows:  
                                                                                                                                                                                     
High temp 40.1° VP2 (1501)(RS 39.4°)   
Low temp 26.8° VP2 (2358)(RS 25.9°)  
Obs temp 26.8° VP2 (RS 25.9°)   
Peak wind gust 20 SW (1210)   
Relative Humidity ranged from a max of 91% (0137) to a low of 52% (1500)
Dew point temperatures ranged from 30° to 21°
Barometric pressure values ranged from 30.24"(1930) to 30.02"(0007)
                                                                                                                                  
At midnight obs the temp was 26.8° (VP2), Clear, Winds Calm, Pressure at 30.23" and steady, humidity 84%, dew pt of 23°.

Currently at 0202 EST I have a temp of 25.8°(VP2), (24.8° RS), Clear, Winds Calm, Pressure at 30.21" and falling, humidity 87%, dew point of 23°.
  
Radar is showing a nice area of mostly light snow falling over much of upstate New York, mostly over the Adirondack Mountains and neighboring states of VT and ONT/QUE in Canada.

Kevin the walrus of Gaithersburg signing off early on this Thursday morning.

 

[Kevin Shaw]

Gaithersburg Maryland VP2 backyard weather station report for Thursday, December 19, 2013

Thursday started our major pattern change brought in by a SW flow that will be elevating our temperatures

through the weekend into well above normal values. We soared into the mid 50s at my station, and some spots in

the region reached into the 60s after one more cold, frosty morning in the mid 20s. Some clouds at times, plenty

of sun at other times. SW winds were light most of the day. Tonight the temps have only dropped to around 40

so far, we should hit the upper 30s by sunrise under mostly cloudy skies overnight. Clouds will be the norm on

Friday and over the weekend despite the mild temps.

 

Friday should see highs in the upper 50s once again, then hitting into the 60s on Saturday. With a cold front

approaching, Sunday should remain cloudy with a 70 POP for showers and even thundershowers possible, with

high temps way up there in the low 70s.  Rain should wind down on Sunday night and start to turn cooler, with

high temps under cloudy skies on Monday around 50. Christmas week thereafter should see more seasonable

temps and dry conditions, with highs in the mid-upper 30s and lows in the 20s on Tuesday and Christmas

Wednesday. Thursday should see a bit of a warm up , with high temps into the low 40s, lows in the upper 20s. 

Thursday's precipitation: 0  
December total precipitation: 3.03"
Thursday snow/sleetfall: 0 
Midnight snowfall on ground (nearest inch): 0 
December monthly snowfall: 5.3"  
Annual YTD precipitation total: 46.46" 

Other data for Thursday is as follows:  
                                                                                                                                                                                              
High temp 57.4° VP2 (1508)(RS 57.4°)   
Low temp 24.6° VP2 (2358)(RS 23.7°)  
Obs temp 40.7° VP2 (RS 41.0°)   
Peak wind gust 9 SW (1515)   
Relative Humidity ranged from a max of 91% (0840) to a low of 39% (1516)
Dew point temperatures ranged from 35° to 22°
Barometric pressure values ranged from 30.23"(0000) to 30.09"(1503)
                                                                                                                                  
At midnight obs the temp was 40.7° (VP2), Cloudy, Winds Calm, Pressure at 30.13" and falling, humidity 72%, dew pt of 32°.

Currently at 0235 EST I have a temp of 39.5°(VP2), (39.7° RS), Cloudy, Winds Calm, Pressure at 30.11" and falling, humidity 75%, dew point of 32°.
  
Radar is showing a wide swath of snow stretching across northern WI, northern MI, through southern ONT, into upstate NY and parts of New England at this time. Moving west to east, not getting near us with this building ridge over us right now. 

Kevin the walrus of Gaithersburg signing off early on this Friday morning.

 

[Kevin Shaw]

Gaithersburg Maryland VP2 backyard weather station report for Friday, December 20, 2013

 

Friday continued our big warmup. For the first time in almost 2 weeks (13 days) my low temp for the day was

above freezing. We will be having more of those overnights through the weekend and next Monday. Temps

reached the mid 50s once again, and tonight has only dropped into the mid 40s early this Saturday morning. We

probably won't get any lower than the low 40s by sunrise. Saturday should see temps soar into the 60s under

cloudy skies. Temps will only get down into the 50s overnight Saturday into Sunday,then on Sunday warm up even

more into the upper 60s or lower 70s. Record high temps for my station are 60 on Saturday and 64 on Sunday.

Record high mins on both days is 45. So it may very well be a record-setting weekend. Sometime Sunday we

should be getting showers and thunderstorms in our area ahead of an advancing cold front out of the midwest.

Overnight Sunday should start cooling off some, but only into the 40s. Monday should see max temps back in the

mid 50s, then drop into the 30s in the evening. Rain showers should be ending sometime on Monday, under cloudy

skies. Tuesday and Christmas Day Wednesday should see sunny to partly cloudy skies, slight chance of a little

light snow on Christmas Eve Tuesday, with high temps in the much more seasonable mid-upper 30s with lows in

the 20s. A bit of a warm up thereafter on Thursday and Friday, probably somewhere into the 40s for highs and

upper 20s to low 30s overnight. No real chances of organized precipitation at the end of the week. It looks bleak

for getting a white Christmas in my area this year.

Friday's precipitation: 0  
December total precipitation: 3.03"
Friday snow/sleetfall: 0 
Midnight snowfall on ground (nearest inch): 0 
December monthly snowfall: 5.3"  
Annual YTD precipitation total: 46.46" 

Other data for Friday is as follows:  
                                                                                                                                                                                              
High temp 55.9° VP2 (2042)(RS 53.9°)   
Low temp 36.9° VP2 (0803)(RS 36.9°)  
Obs temp 53.9° VP2 (RS 54.5°)   
Peak wind gust 9 SW (1113)   
Relative Humidity ranged from a max of 79% (0843) to a low of 47% (1449)
Dew point temperatures ranged from 43° to 30°
Barometric pressure values ranged from 30.13"(0000) to 30.01"(1512)
                                                                                                                                  
At midnight obs the temp was 53.9° (VP2), Cloudy, Winds 3 SSW, Pressure at 30.03" and steady, humidity 63%, dew pt of 41°.

Currently at 0456 EST I have a temp of 45.7°(VP2), (46.0° RS), Cloudy, Winds Calm, Pressure at 30.02" and steady, humidity 82%, dew point of 41°.
  
Radar is currently showing a line of varying types of precipitation running a general SW to NE direction through northern New England stretching west/southwest into the Great Plains.

Kevin the walrus of Gaithersburg signing off early on this Saturday morning.

 

[Kevin Shaw]

Gaithersburg Maryland VP2 backyard weather station report for Saturday, December 21, 2013

 

Saturday continued our big warmup into record-breaking categories. I set an all-time daily record high temperature for Dec 21 at 69.7 which rounds to 70, old record was 60 so it was a significant record.  My morning low of 45.6 (rounding up once again to 46) also set a record high min for Dec 21. Already during the early morning hours of Sunday Dec 22 I have set a daily record max temps, as I have a current temp of 69.2 that breaks the daily record for today of 64.  Mostly cloudy, high types mostly, but just a while ago, NWS put us in a severe thunderstorm watch area till 10 AM Sunday.  There is a line of showers and thunderstorms marching eastward fairly fast from the hills of WV not too far to my west. Cloudy and a 70 POP for showers and storms on Sunday, mostly in the AM and then late PM, with a high temp in the low 70s. BTW my all time December record high temperature is 76 set back on Dec 6 and Dec 8 in 1990 and 1998 as best I recall   Rain overnight Sunday and into Monday, gradually cooling off with lows in the 40s Sunday night and highs on Monday around 60. More seasonable weather (and of course dry as it gets colder) on Christmas and Christmas Eve, with high temps around 40 and lows in the 20s. Should be dry, no real chance for a White Christmas in this area. A bit of a warmup after Christmas Day but not that significantly - probably will have high temps in the mid-upper 40s and lows in the upper 20s to lower 30s.

Saturday's precipitation: 0  
December total precipitation: 3.03"
Saturday snow/sleetfall: 0 
Midnight snowfall on ground (nearest inch): 0 
December monthly snowfall: 5.3"  
Annual YTD precipitation total: 46.46" 

Other data for Saturday is as follows:  
                                                                                                                                                                                              
High temp 69.7° VP2 (1454)(RS 69.4°)   
Low temp 45.6° VP2 (0459)(RS 46.0°)  
Obs temp 66.4° VP2 (RS 66.9°)   
Peak wind gust 21 S (2322)   
Relative Humidity ranged from a max of 85% (0628) to a low of 61% (1505)
Dew point temperatures ranged from 61° to 40°
Barometric pressure values ranged from 30.03"(0846) to 29.90"(1422)
                                                                                                                                  
At midnight obs the temp was 66.4° (VP2), Cloudy, Winds 11 SW, Pressure at 29.91" and falling, humidity 84%, dew pt of 61°.

Currently at 0542 EST I have a temp of 69.5°(VP2), (69.8° RS), Cloudy, Winds 12 from the SSW, Pressure at 29.85" and falling, humidity 81%, dew point of 63°. Note: PWG for the day so far for Sunday is 22 MPH from the W @ 0354 EST. 
  
Radar is currently showing a line of showers and scattered storms a few hundred miles away to our west. By the way, we are under a severe thunderstorm watch till 1000 EST. We have actually been warming up overnight, current temp at 0517 is 69.2, that is a change of + 2.8° since midnight. 

Kevin the walrus of Gaithersburg signing off early on this Sunday morning.

 

[Kevin Shaw]

Gaithersburg Maryland VP2 backyard weather station report for Sunday, December 22, 2013  

Sunday continued our big warmup into more record-breaking categories. I set another all-time daily record high temperature, this time for Dec 22 at 69.9 at 7:12 AM, normally when I have my low temp for the day. This value rounds to 70, just like yesterday, with the old record of 64  set back in 1990 so it was a significant record.  My incredibly high low temp for the day of 61.3 (rounding down a bit to 61) also set a record high min for Dec 22, and a new high min record for the entire month of December, surpassing the old record of 59 set on the 7th and 23rd in previous years.  Dew points reached the mid 60s, I was sweating most of the day!  Morning showers falling between 7 and 10 AM (roughly) contributed 100% of the total amount for the day. More showers on the way overnight and into a good part of Monday, there is a flash flood watch posted for our area. Temperatures will slowly drop off the next few days, down to seasonable levels by Christmas Eve. There is a slight chance for a bit of light snow on Xmas eve night, but nothing significant. We should be in the 30s for highs and 20s for lows on Christmas Day, with mostly sunny skies. Seasonable temperatures should be the rule the rest of the week, and remain dry. 

Sunday's precipitation: 0.33" (LR) 0.32" (VP2) Max rain rate (MRR) 3.18" @ 0712 
December total precipitation: 3.36"
Sunday snow/sleetfall: 0 
Midnight snowfall on ground (nearest inch): 0 
December monthly snowfall: 5.3"  
Annual YTD precipitation total: 46.79" 

Other data for Sunday is as follows:  
                                                                                                                                                                                              
High temp 69.9° VP2 (0712)(RS 70.2°)   
Low temp 61.3° VP2 (2144)(RS 61.7°)  
Obs temp 61.8° VP2 (RS 62.2°)   
Peak wind gust 22 W (0354)   
Relative Humidity ranged from a max of 97% (1054) to a low of 81% (0537)
Dew point temperatures ranged from 65° to 58°
Barometric pressure values ranged from 30.01"(0928) to 29.82"(0420)
                                                                                                                                  
At midnight obs the temp was 61.8° (VP2), Cloudy, Winds 6 S, Pressure at 29.99" and steady, humidity 92%, dew pt of 60°.

Currently at 0208 EST I have a temp of 60.8°(VP2), (61.2° RS), Cloudy, Winds Calm, Pressure at 29.98" and steady, humidity 95%, dew point of 59°. Just started to rain, 0.01" in the VP2 gauge so far since midnight.
    
Radar is currently showing a lot of rain to my SW in much of western and southern VA, headed this way over the next few hours. It should be raining pretty well by sunrise. 

Kevin the walrus of Gaithersburg signing off early on this Monday morning.

 

[Kevin Shaw]

Gaithersburg Maryland VP2 backyard weather station report for Monday, December 23, 2013

 

 

Monday marked the rainy end to our big warm spell, with no records set on this day. Rain fell off and on most of the morning into the early afternoon with gradually cooling temperatures, falling through the low 60s right after midnight into the 50s by sunrise and 40s by the late afternoon under clearing skies. Temps fell into the upper 30s in the late evening, and continue to fall early on this Christmas Eve Tuesday into the mid 30s. I think it will hit freezing by sunrise. We should stay in the 30s for highs over the next two days, with clouds on Tuesday afternoon and a slight chance for a brief snow flurry or snow shower that might coat the ground in a few lucky spots. Temps should be in the low-mid 20s for Santa's visit Tuesday night. Sunny the rest of the week into the weekend, with temps mostly topping out somewhere in the 40s with lows in the mid-upper 20s on Wednesday and Thursday night, rising to lows in the low 30s over the weekend. No real significant precipitation expected during the period through the weekend. 

Monday's precipitation: 0.94" (LR) 0.84" (VP2) Max rain rate (MRR) 0.95" @ 0548 
December total precipitation: 4.30"
Monday snow/sleetfall: 0 
Midnight snowfall on ground (nearest inch): 0 
December monthly snowfall: 5.3"  
Annual YTD precipitation total: 47.73" 

Other data for Monday is as follows:  
                                                                                                                                                                                              
High temp 61.9° VP2 (0005)(RS 62.4°)   
Low temp 37.4° VP2 (2359)(RS 37.2°)  
Obs temp 37.4° VP2 (RS 37.2°)   
Peak wind gust 18 NW (1742)   
Relative Humidity ranged from a max of 98% (0617) to a low of 67% (2308)
Dew point temperatures ranged from 60° to 28°
Barometric pressure values ranged from 30.26"(2337) to 29.93"(0744)
                                                                                                                                  
At midnight obs the temp was 37.4° (VP2), Clear, Winds 5 NW, Pressure at 30.24" and rising, humidity 68%, dew pt of 28°.

Currently at 0414 EST I have a temp of 33.5°(VP2), (33.3° RS), Clear, Winds 1 NNW, Pressure at 30.22" and steady, humidity 72%, dew point of 25°.
    
Radar is currently showing our early Monday rain well offshore to our north and east out in the Atlantic Ocean, along with snow flurries/showers over the usual lake effect areas in parts of the Great Lake States of NY, OH, MI and even into northern KY. Some of these may make it over the mountains on Tuesday and pay our region a brief visit on Christmas Eve. 

Kevin the walrus of Gaithersburg signing off early on this Christmas Eve Tuesday morning.

 

[Kevin Shaw]

Gaithersburg Maryland VP2 backyard weather station report for Tuesday, December 24, 2013

Tuesday was our coldest day in a week, going back to December 17. Clouds were prevalent at times, particularly in

the afternoon when a few snow showers passed through our area/regions from the West to the East.

Unfortunately only trace amounts fell at my location. Temps stayed in the 30s, then dropped into the 20s in the

evening. Early this Christmas morning temps are now in the low 20s under clear skies, with upper teens likely by Christmas Morning sunrise. Christmas Day Wednesday should be sunny and cold, with highs around the freezing mark. A bit of clouds Wednesday night into Thursday, with lows in the 20s and highs on Thursday moderating a bit to around 40. Thereafter through the weekend it should be sunny to partly cloudy with a slow moderating trend, as high temps start out in the low 40s on Friday rising to around 50 by Sunday. Lows should be in the 20s on Friday rising to the low 30s by Sunday. No real organized areas of precipitation expected in the region during the period.

 

Tuesday's precipitation: T
December total precipitation: 4.30"
Tuesday snow/sleetfall: T
Midnight snowfall on ground (nearest inch): 0
December monthly snowfall: 5.3" 
Annual YTD precipitation total: 47.73"

 

Other data for Tuesday is as follows: 

High temp 39.1° VP2 (1456)(RS 38.7°) 
Low temp 23.0° VP2 (2352)(RS 22.5°) 
Obs temp 23.0° VP2 (RS 22.5°) 
Peak wind gust 19 NW (1555) 
Relative Humidity ranged from a max of 80% (0635) to a low of 43% (1757)
Dew point temperatures ranged from 29° to 8°
Barometric pressure values ranged from 30.49"(2342) to 30.22"(0406)
 

At midnight obs the temp was 23.0°(VP2), Clear, Winds 4 N, Pressure at 30.49" and rising, humidity 61%, dew pt of 11°.

 

Currently at 0337 EST I have a temp of 21.1°(VP2), (20.5° RS), Clear, Winds 5 WNW, Pressure at 30.53" and rising, humidity 64%, dew point of 11°.

Radar is currently a small area of snow showers over parts of Maine, and a much larger area of light snow out in the Midwest, centered over Lake Michigan, including parts of the states of WI, MI, IL, OH and IN.

 

Kevin the walrus of Gaithersburg signing off early on this Christmas Wednesday morning. Merry Christmas to all, and to all a Good Night!

 

[Kevin Shaw]

Gaithersburg Maryland VP2 backyard weather station report for Wednesday, December 25, 2013

 

 

Christmas Day Wednesday was our coldest day in almost 2 weeks, going back to December 12. Santa was good to me with lots of great stuff, including a new wireless weather station (Lacrosse model C84612) that, once up and running fully, will be used as a backup to my current VP2. Right now I have the clock set, the barometer and temperature up and running.  The rain and wind speed/direction still needs to be setup. The internet connection for the data is partially setup with the gateway connected, but I have not configured it yet. The outdoor temperature sensor is partially installed, I want to monitor it a bit before I screw it permanently into place. Stay tuned for updates on the full installation of this new backup system. It was a mostly sunny, cold Christmas Day with the low temperature of 19.8 matching my lowest temperature of the season that was previously reached on November 25 and December 13.  Tonight we have dropped into the mid 20s early this Thursday morning, with the likelihood of reaching the low 20s by sunrise under cloudy skies. An area of light snow to our west and north in PA and WV just now poking into far western MD may make it over the mountains and give us a bit of light snow showers in the daylight morning hours. Skies should clear in the afternoon with temps warming up a bit into the low 40s. Lows Thursday night back into the 20s, then back up into the low 40s on Friday under mostly sunny skies. Over the weekend some clouds at times but warming up a bit more, with high temps reaching the upper 40s on both Saturday and Sunday. Cooling off a bit into the low 40s early next week with partly cloudy skies. Lows overnight should be in the upper 20s to lower 30s. There still is no real organized areas of precipitation expected in our area through to the end of 2013. I might add that for me, the most notable acquisition on Christmas was getting a new computer mouse. The right clicker on my old mouse worked intermittently at best, and gave me fits clicking on it many times till it worked. The new mouse makes a world of difference and streamlines greatly my actions that require that right click of the mouse, which I use quite a bit. 

Wednesday's precipitation: 0 
December total precipitation: 4.30"
Wednesday snowfall: 0
Midnight snowfall on ground (nearest inch): 0 
December monthly snowfall: 5.3"  
Annual YTD precipitation total: 47.73" 

Other data for Wednesday is as follows:  
                                                                                                                                                                                          
High temp 33.1° VP2 (1504)(RS 31.8°)   
Low temp 19.8° VP2 (0713)(RS 19.2°)  
Obs temp 26.4° VP2 (RS 25.7°)   
Peak wind gust 8 NW (0412)   
Relative Humidity ranged from a max of 75% (2359) to a low of 42% (1501)
Dew point temperatures ranged from 20° to 10°
Barometric pressure values ranged from 30.61"(1001) to 30.40"(2356)
                                                                                                                                  
At midnight obs the temp was 26.4°(VP2), Cloudy, Winds 2 E, Pressure at 30.40" and falling, humidity 75%, dew pt of 20°.

Currently at 0246 EST I have a temp of 25.8°(VP2), (25.2° RS), Cloudy, Winds  4 E, Pressure at 30.36" and falling, humidity 82%, dew point of 21°.
    
Radar is currently an advancing broad line of light snow showers to my west and north crossing the Appalachian Mountains of PA, WV and western MD. If it can hold together after getting over the mountains, we may have a bit of light snow falling here around the 0700-1000 time frame Thursday morning. 

Kevin the walrus of Gaithersburg signing off early on this Thursday morning.

 

[Kevin Shaw]

Gaithersburg Maryland VP2 backyard weather station report for Thursday, December 26, 2013

 

 

Thursday was cold and cloudy in the AM, with some light snow showers coming through as suggested by the late night radar I was looking and discussing in my Wednesday weather message email/post. Nothing measureable, and I didn't actually see it snow myself, but others in the immediate area said that it had snowed while I was sleeping. The sun came out thereafter and maintained its presence the rest of the daylight day. Temps warmed into the mid 40s. This evening temps have dropped off through the 30s, but so far has been yoyoing between the upper 20s and lower 30s. We should be mostly clear overnight, with lows in the mid 20s by sunrise. Friday should be mostly sunny with highs in the mid 40s. Friday night clear and seasonable, with lows in the mid-upper 20s. Saturday should see sun and milder temperatures, with highs somewhere in the 50s, then clouding up Saturday evening/overnight, lows in the 30s, with rain showers expected to fall off and on on Sunday with highs in the upper 30s as a coastal LOW tracks up the coast. Cloudy overnight Sunday, lows in the 20s, then clearing on Monday with highs in the 40s and lows in the 20s. Tuesday and New Years Day Wednesday should be sunny and cold, with highs in the low-mid 30s and lows around 20. Closing out the year with a little bit of everything.

Thursday's precipitation: T 
December total precipitation: 4.30"
Wednesday snowfall: T
Midnight snowfall on ground (nearest inch): 0 
December monthly snowfall: 5.3"  
Annual YTD precipitation total: 47.73" 

Other data for Thursday is as follows:  
                                                                                                                                                                                              
High temp 45.2° VP2 (1508)(RS 44.2°)   
Low temp 25.6° VP2 (0337)(RS 24.8°)  
Obs temp 29.9° VP2 (RS 29.5°)   
Peak wind gust 12 W (1625)   
Relative Humidity ranged from a max of 85% (0401) to a low of 43% (1626)
Dew point temperatures ranged from 27° to 20°
Barometric pressure values ranged from 30.40"(0000) to 30.25"(1449)
                                                                                                                                  
At midnight obs the temp was 29.9°(VP2), Clear, Winds 1 WSW, Pressure at 30.38" and rising, humidity 65%, dew pt of 21°.

Currently at 0147 EST I have a temp of 30.5°(VP2), (30.0° RS), Clear, Winds Calm, Pressure at 30.39" and rising, humidity 66%, dew point of 20°.
    
Radar is currently a  small area of snow shower activity in parts of MI, NY and OH centered around the western end of Lake Erie for the most part.  There is also a very small, diminishing snow shower area in Downeast Maine. 

Kevin the walrus of Gaithersburg signing off early on this Friday morning.

 

[Kevin Shaw]

        Gaithersburg Maryland VP2 backyard weather station report for Friday, December 27, 2013
 

Friday was cold and clear in the early AM hours, but warmed quickly in the later AM and all of the afternoon, reaching the 50 mark in the mid-afternoon under bright sun. After sunset the temps dropped off nicely once again and fell into the 20s before midnight. We should reach the mid 20s by morning. Another sunny, warming day on Saturday with high temps in the mid 50s before conditions start to deteriorate late Saturday and into Sunday. Rain will develop after midnight Saturday with lows in the mid 30s, then low 40s during the day on Sunday with a 100 POP for rain. There is a chance for 1-2 inch rainfall amounts in the region, we shall see how that sets up. Cloudy Sunday night, lows in the 30s, then clearing out on Monday with highs in the upper 30s. Lows in the 20s. Tuesday and Wednesday as we enter the new year should be sunny with highs in the mid 30s and lows in the lower 20s. There is a 30-40 POP for snow on Thursday, we shall see how that develops. Remaining cold, highs in the 30s lows in the 20s.

Friday's precipitation: 0
December total precipitation: 4.30"
Friday snowfall: 0
Midnight snowfall on ground (nearest inch): 0
December monthly snowfall: 5.3"
Annual YTD precipitation total: 47.73"

Other data for Friday is as follows:

High temp 50.4° VP2 (1506)(RS 49.6°)
Low temp 24.4° VP2 (0756)(RS 23.7°)
Obs temp 29.9° VP2 (RS 29.7°)
Peak wind gust 11 E (1240)
Relative Humidity ranged from a max of 88% (0915) to a low of 31% (1458)
Dew point temperatures ranged from 28° to 19°
Barometric pressure values ranged from 30.45"(1006) to 30.33"(1618)

At midnight obs the temp was 29.9°(VP2), Clear, Winds Calm, Pressure at 30.35" and steady, humidity 79%, dew pt of 24°.

Currently at 0433 EST I have a temp of 27.0°(VP2), (26.1° RS), Clear, Winds Calm, Pressure at 30.30" and falling, humidity 86%, dew point of 23°.

Radar is currently showing a small area of snow showers in upstate Northern New York and parts of Quebec south of Montreal, moving into parts of Northern New England as it heads slowly east. .

Kevin the walrus of Gaithersburg signing off early on this Saturday morning.

[Kevin Shaw]

Gaithersburg Maryland VP2 backyard weather station report for Saturday, December 28, 2013

Saturday was cold and clear in the early AM hours once again, with lows in the mid 20s, but warmed quickly in the later AM and all of the afternoon, reaching the mid 50s in the mid-afternoon under bright sun. After sunset the temps didn't drop off as much as the past few nights, as clouds from our rain storm for Sunday started to advance into the area.  Temps only fell a tad below 40 early Sunday morning before the rain came in around 4:30 AM and started to warm us up in to the low 40s at this time.  Rain should dominate the scene through most of Sunday (100 POP), a light steady rain generally but wit some heavier interludes at times, with temps holding in the low 40s. Becoming just cloudy Sunday night, with lows in the 30s. Monday through New Years Eve Tuesday should see mostly sunny skies with highs in the upper 30s and lows in the 20s. On New Years Day we should be sunny and a bit colder with highs in the mid 30s and lows in the mid 20s. Thursday there is a 40 POP for rain and/or snow, with highs in the 30s and lows in the 20s. It should turn to all snow Thursday night before ending,with lows in the 20s. Sunny and cold on Friday with highs only in the upper 20s, then lows in the teens. Saturday should be not quite as cold, with highs in the low-mid 30s and lows in the low 20s. Quite a cold entry into the new year of 2014. Stay tuned for further updates on the first potential snow of 2014 on Thursday. 

Saturday's precipitation: 0
December total precipitation: 4.30"
Saturday snowfall: 0
Midnight snowfall on ground (nearest inch): 0 
December monthly snowfall: 5.3"  
Annual YTD precipitation total: 47.73" 

Other data for Saturday is as follows:  
                                                                                                                                                                                              
High temp 57.5° VP2 (1414)(RS 57.4°)   
Low temp 25.5° VP2 (0721)(RS 24.8°)  
Obs temp 39.4° VP2 (RS 39.6°)   
Peak wind gust 9 W (1238)   
Relative Humidity ranged from a max of 91% (0921) to a low of 31% (1442)
Dew point temperatures ranged from 31° to 23°
Barometric pressure values ranged from 30.35"(0005) to 30.13"(2350)
                                                                                                                                  
At midnight obs the temp was 39.4°(VP2), Cloudy, Winds Calm, Pressure at 30.13" and falling, humidity 73%, dew pt of 32°.

Currently at 0546 EST I have a temp of 40.9°(VP2), (40.8° RS), Cloudy with light rain, Winds Calm, Pressure at 30.04" and falling, humidity 89%, dew point of 38°. So far 0.04" of rain has fallen into my VP2 gauge from midnight to the current time.
    
Radar is currently showing a large area of rain moving into our region from the south (VA and NC) with embedded areas noted of heavier rain in sections of VA at this time, all moving north. We are in for several hours of rain for most of Sunday. 

Kevin the walrus of Gaithersburg signing off early on this Sunday morning.

 

[Kevin Shaw]

Gaithersburg Maryland VP2 backyard weather station report for Sunday, December 29, 2013

 

 

Sunday was milder and rainy, particularly through the early afternoon.  Really didn't get any more rain after about 1300 early Sunday afternoon. Most intense rain occurred just before noon (see MRR details below). Clouds are slowly breaking up late this evening, still mild as temps hold above 40 so far tonight. We should have sunny to partly cloudy skies on Monday and Tuesday as we close out the 2013 year, with high temps in the upper 30s to around 40, lows in the 20s. Sunny and a bit colder on New Years Day on Wednesday, with highs in the mid 30s, lows in the 20s. Right now there is a 30-40 POP for snow or rain/snow mix on Thursday with highs in the 30s, lows in the 20s - Thursday night into Friday should see just a chance of snow (50 POP currently)  with highs only in the upper 20s on Friday, lows in the teens. Some moderation over the weekend, with highs back up in the 30s to around 40, lows mostly in the 20s. Hard to tell how much snow we will be getting on Thursday and Friday, stay tuned later this week as final determinations become clearer as the storm forms and the track of the LOW defined much better. . 

Sunday's precipitation: 1.16" (LR) 1.10" (VP2) 1.79" max rain rate (MRR) @ 1149
December total precipitation: 5.46"
Sunday snowfall: 0
Midnight snowfall on ground (nearest inch): 0 
December monthly snowfall: 5.3"  
Annual YTD precipitation total: 48.89" 

Other data for Sunday is as follows:  
                                                                                                                                                                                              
High temp 45.8° VP2 (1440)(RS 46.0°)   
Low temp 39.1° VP2 (0146)(RS 39.0°)  
Obs temp 40.2° VP2 (RS 39.9°)   
Peak wind gust 11 NW (1956)   
Relative Humidity ranged from a max of 98% (1913) to a low of 66% (0404)
Dew point temperatures ranged from 45° to 30°
Barometric pressure values ranged from 30.13"(0000) to 29.56"(1405)
                                                                                                                                  
At midnight obs the temp was 40.2°(VP2), Mostly Cloudy, Winds 1 WSW, Pressure at 29.84" and rising, humidity 93%, dew pt of 38°.

Currently at 0222 EST I have a temp of 41.1°(VP2), (41.0° RS), Mostly Cloudy, Winds 2 W, Pressure at 29.87" and rising, humidity 91%, dew point of 39°. 
    
Radar is currently showing a shrinking area of light snow over downeast Maine and most of New Brunswick - plus a few light snow showers in the Lake Effect region areas in parts of northern IN and southern MI 

Kevin the walrus of Gaithersburg signing off early on this Monday morning. .

 

[Kevin Shaw]

Gaithersburg Maryland VP2 backyard weather station report for Monday, December 30, 2013

 

 

Monday was mildest in the morning, with clouds and light sprinkles (around 9 AM when I was on my way to work) then gradually cooled off to around the freezing mark at midnight obs time along with partially clearing skies. It has been holding around freezing through the first few hours of the last day of the year under cloudy skies.  The last day of the year should find high temps in the low 40s under mostly sunny skies, then a high of around 40 on New Years Day under mostly sunny conditions. New Years Eve should be dry and clear, lows in the 20s. Thursday starts to get interesting with clouds and a mix of rain and snow, highs in the upper 30s to low 40s then changing to all snow Thursday night with lows in the 20s (70 POP).  A 30 POP for continued snow on Friday and quite cold, with highs in the mid 20s. What should be our coldest night of the season if it pans out on Friday night with lows around 10. I will believe it when I see it. Saturday should be sunny and continued cold, with highs in the low 30s. Sunday more clouds come in with another warm up, highs in the 30s with a mixed bag of precipitation possible. Snow may fall Sunday night, then rain or a mix on Monday - quite a busy pattern as we move into the new month and year. 

Monday's precipitation: T 
December total precipitation: 5.46"
Monday snowfall: 0
Midnight snowfall on ground (nearest inch): 0 
December monthly snowfall: 5.3"  
Annual YTD precipitation total: 48.89" 

Other data for Monday is as follows:  
                                                                                                                                                                                              
High temp 44.8° VP2 (0915)(RS M°)
Low temp 31.9° VP2 (2354)(RS M°)  
Obs temp 31.9° VP2 (RS M°)   
Peak wind gust 16 N (1031)   
Relative Humidity ranged from a max of 94% (0049) to a low of 64% (1429)
Dew point temperatures ranged from 40° to 22°
Barometric pressure values ranged from 30.21"(2228) to 29.83"(0121)
                                                                                                                                  
At midnight obs the temp was 31.9°(VP2), Mostly Cloudy, Winds 1 NNW, Pressure at 30.19" and falling, humidity 69%, dew pt of 23°.

Currently at 0503 EST I have a temp of 30.8°(VP2), (M° RS), Mostly Cloudy, Winds Calm, Pressure at 30.16" and falling, humidity 69%, dew point of 22°. 
    
Radar is currently showing widely scattered snow shower activity in the usual Great Lakes snow areas in NY, PA, OH, and IN moving west to east. Some light activity (mostly rain) lies to my south in southern VA and NC, scattered widely throughout that area. 

Kevin the walrus of Gaithersburg signing off early on this Tuesday morning. .