nw baltimore wx Posted February 8, 2012 Share Posted February 8, 2012 I'll let ya know - will depend if I am allowed to leave early or not. Sounds good. 36 in Columbia. dp 27. Link to comment Share on other sites More sharing options...
H2O Posted February 8, 2012 Share Posted February 8, 2012 Faquier county schools are closed. Seriously Welcome to 2 hours ago Link to comment Share on other sites More sharing options...
CoastalWx Posted February 8, 2012 Share Posted February 8, 2012 Should be some decent echoes later on in the nw burbs and up into sctrl PA. Places like HGR etc. I could envision a good band there, but you'll need elevation. Link to comment Share on other sites More sharing options...
TUweathermanDD Posted February 8, 2012 Share Posted February 8, 2012 Fauquier always closes omg those kids lol, spoiled. Link to comment Share on other sites More sharing options...
North Balti Zen Posted February 8, 2012 Share Posted February 8, 2012 Welcome to 2 hours ago I thought you were kidding two hours ago. Link to comment Share on other sites More sharing options...
H2O Posted February 8, 2012 Share Posted February 8, 2012 I thought you were kidding two hours ago. 99% of my posts are worthless except for that one Link to comment Share on other sites More sharing options...
clskinsfan Posted February 8, 2012 Share Posted February 8, 2012 Dont know about the radar hallucinations going on in here. The radar looks pretty good to my eyes. Should be a nice little event for the Northern Shenandoah Valley. Link to comment Share on other sites More sharing options...
MN Transplant Posted February 8, 2012 Share Posted February 8, 2012 72403 IAD Sterling Observations at 12Z 08 Feb 2012 ----------------------------------------------------------------------------- PRES HGHT TEMP DWPT RELH MIXR DRCT SKNT THTA THTE THTV hPa m C C % g/kg deg knot K K K ----------------------------------------------------------------------------- 1014.0 93 0.2 -2.5 82 3.15 0 0 272.3 281.0 272.8 1002.0 184 2.0 -4.0 64 2.85 56 5 275.0 283.0 275.5 1000.0 199 2.2 -3.8 65 2.90 65 6 275.4 283.5 275.8 995.0 240 2.6 -3.4 65 3.00 75 8 276.1 284.6 276.6 987.0 305 2.6 -4.1 61 2.87 90 11 276.8 284.9 277.3 984.0 330 2.6 -4.4 60 2.82 90 11 277.0 285.0 277.5 950.3 610 0.5 -5.9 62 2.60 95 13 277.7 285.1 278.1 925.0 827 -1.1 -7.1 64 2.44 110 11 278.2 285.2 278.6 920.0 870 -1.5 -7.5 64 2.38 110 10 278.2 285.1 278.6 914.9 914 -1.8 -6.8 69 2.52 110 9 278.3 285.6 278.8 906.0 992 -2.3 -5.6 78 2.79 124 8 278.6 286.6 279.1 880.4 1219 -3.5 -6.6 79 2.67 165 4 279.6 287.3 280.1 872.0 1295 -3.9 -6.9 80 2.63 175 6 280.0 287.6 280.4 850.0 1496 -4.7 -5.7 93 2.95 200 11 281.2 289.7 281.7 849.0 1505 -4.7 -5.6 93 2.98 205 12 281.3 289.9 281.8 847.0 1524 -4.7 -5.6 93 2.99 215 14 281.5 290.2 282.0 826.0 1722 -4.3 -5.5 91 3.09 234 17 283.9 292.9 284.5 814.9 1829 -3.9 -7.1 78 2.78 245 19 285.5 293.7 286.0 811.0 1866 -3.7 -7.6 74 2.67 245 19 286.1 294.0 286.5 791.0 2064 -3.5 -6.5 80 2.99 245 21 288.3 297.2 288.9 Link to comment Share on other sites More sharing options...
usedtobe Posted February 8, 2012 Share Posted February 8, 2012 It's hard to get excited by the event with temps starting out this warm. The 06Z nam has dc around 40 at 00Z. It's now warmer than the gfs. The warm layer remains pretty shallow when you throw in the dewpoints. I like the CWG forecast from yesterday but think the trace amounts for the city are more likeley than the 1". Link to comment Share on other sites More sharing options...
PhineasC Posted February 8, 2012 Share Posted February 8, 2012 It's hard to get excited by the event with temps starting out this warm. The 06Z nam has dc around 40 at 00Z. It's now warmer than the gfs. The warm layer remains pretty shallow when you throw in the dewpoints. I like the CWG forecast from yesterday but think the trace amounts for the city are more likeley than the 1". I wouldn't get excited for accumulations in DC itself even if temps were in the 20s... Link to comment Share on other sites More sharing options...
showmethesnow Posted February 8, 2012 Share Posted February 8, 2012 Up to a temp of 34 from a 4am reading of 31. Link to comment Share on other sites More sharing options...
WinterWxLuvr Posted February 8, 2012 Share Posted February 8, 2012 I think this ends up better than Saturday. That's my call. I really hope it ends up better for you guys in DC/Balt. Of course, it won't have to do much to top that one for you. Link to comment Share on other sites More sharing options...
mitchnick Posted February 8, 2012 Share Posted February 8, 2012 IAD soundings at 7 AM http://weather.unisys.com/upper_air/skew/skew_KIAD.txt Link to comment Share on other sites More sharing options...
Eskimo Joe Posted February 8, 2012 Share Posted February 8, 2012 IAD soundings at 7 AM http://weather.unisy...w/skew_KIAD.txt It's not going to snow KDMW - 34/27 Link to comment Share on other sites More sharing options...
yoda Posted February 8, 2012 Share Posted February 8, 2012 IAD soundings at 7 AM http://weather.unisys.com/upper_air/skew/skew_KIAD.txt Isn't that last night? Link to comment Share on other sites More sharing options...
chris87 Posted February 8, 2012 Share Posted February 8, 2012 Isn't that last night? yes, and MN Transplant already posted the text from the 12z sounding just a bit up... for those with graphical needs for the actual 12z sounding: http://weather.rap.ucar.edu/upper/iad.gif Link to comment Share on other sites More sharing options...
TUweathermanDD Posted February 8, 2012 Share Posted February 8, 2012 IAD soundings at 7 AM http://weather.unisys.com/upper_air/skew/skew_KIAD.txt Glad thats last night. Link to comment Share on other sites More sharing options...
MN Transplant Posted February 8, 2012 Share Posted February 8, 2012 8am temps: DCA: 38/29 IAD: 35/28 BWI: 37/26 HGR: 33/26 JYO: 32/30 My station 37/30 9am DCA: 39/30 IAD: 38/29 BWI: 38/28 HGR: 35/27 JYO: 34/30 My station 38/30 Link to comment Share on other sites More sharing options...
mitchnick Posted February 8, 2012 Share Posted February 8, 2012 Isn't that last night? I'm a knucklehead sorry folks Link to comment Share on other sites More sharing options...
catoctin wx Posted February 8, 2012 Share Posted February 8, 2012 9am DCA: 39/30 IAD: 38/29 BWI: 38/28 HGR: 35/27 JYO: 34/30 My station 38/30 FDK sitting exactly at the 32/30 mark. Won't be much wet-bulbing going on, but at least temperatures are cooperating. Link to comment Share on other sites More sharing options...
chris87 Posted February 8, 2012 Share Posted February 8, 2012 I'm a knucklehead sorry folks at least it was a crappy warm sounding and not one that made you feel better about the situation only to be let down when you found out it was from last night Link to comment Share on other sites More sharing options...
Bob Chill Posted February 8, 2012 Share Posted February 8, 2012 FDK sitting exactly at the 32/30 mark. Won't be much wet-bulbing going on, but at least temperatures are cooperating. yea, my temp is up to 37 already. Probably won't go much higher but it's already high enough to cause inherent probs at precip onset. I do have a met question though. Warm layer is pretty shallow. It's gets subfreezing pretty quickly as you go up. We're not going to get much evap cooling help with this system. However, does snowfall bring down the cold air from above like rain does? I would think rain is much more efficient at it but snow does do it too right? Link to comment Share on other sites More sharing options...
mappy Posted February 8, 2012 Share Posted February 8, 2012 woohoo! LWX updated to add a short term forecast statement to say snow is coming! I'm ready. Its coming, Trixie!!! Link to comment Share on other sites More sharing options...
Mrs.J Posted February 8, 2012 Share Posted February 8, 2012 Smells like snow, looks like snow, will have to see if it actually will snow. 34.7 currently in my back yard. It will be interesting to see if FCPS lets out early or not if it does start when expected. We have some very hilly back roads that the busses travel as well as up the Catoctins and up near the PA line. Link to comment Share on other sites More sharing options...
yoda Posted February 8, 2012 Share Posted February 8, 2012 Are any of the stations reporting -SN out there? Link to comment Share on other sites More sharing options...
catoctin wx Posted February 8, 2012 Share Posted February 8, 2012 yea, my temp is up to 37 already. Probably won't go much higher but it's already high enough to cause inherent probs at precip onset. I do have a met question though. Warm layer is pretty shallow. It's gets subfreezing pretty quickly as you go up. We're not going to get much evap cooling help with this system. However, does snowfall bring down the cold air from above like rain does? I would think rain is much more efficient at it but snow does do it too right? That's actually a good question and I wish I could answer it I'm not a forecasting met by any stretch of the imagination, so others will be better qualified to answer. However, anytime you have a precipitation event there will be a certain amount of mixing in the lower atmosphere. With such a shallow warm layer, I woudn't think that it would take much to mix down the colder air. Link to comment Share on other sites More sharing options...
mappy Posted February 8, 2012 Share Posted February 8, 2012 Are any of the stations reporting -SN out there? In the LWX area, not that I've seen. Elkins had light snow last hour, and JamieO just said it was snowing up in State College. Link to comment Share on other sites More sharing options...
H2O Posted February 8, 2012 Share Posted February 8, 2012 Are any of the stations reporting -SN out there? We need traffic cams!! Link to comment Share on other sites More sharing options...
usedtobe Posted February 8, 2012 Share Posted February 8, 2012 yea, my temp is up to 37 already. Probably won't go much higher but it's already high enough to cause inherent probs at precip onset. I do have a met question though. Warm layer is pretty shallow. It's gets subfreezing pretty quickly as you go up. We're not going to get much evap cooling help with this system. However, does snowfall bring down the cold air from above like rain does? I would think rain is much more efficient at it but snow does do it too right? if it's snowing heavily, the melting of the snowflakes can cause cooling. Lance Bosart did a paper on such a case but melting is much less efficient than evaporation so in this case, it probably won't help much unless the precip is heavier than forecast. Link to comment Share on other sites More sharing options...
Herb@MAWS Posted February 8, 2012 Share Posted February 8, 2012 Sounds good. 36 in Columbia. dp 27. Ouch! -- but not surprised. At 4:00am it was 32.0 IMBY and by 5:15 it was 32.4. Looking forward (NOT!) to the craziness on the roads this afternoon coming north from DC. Sticking with my call yesterday afternoon -- Up to 2" for N&N-central MD, dwindling down to a coating-1" just NW of I-95. Not that this is a profound prediction. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.