high risk Posted April 27, 2020 Share Posted April 27, 2020 It's worth checking out the overnight runs of the HRRR. All of them have some healthy reflectivity signals for later this afternoon over most of Maryland east of the Potomac. The freezing levels are really low, so if this is right, these would be showers with likely graupel or small hail. It's worth noting that I haven't seen nearly as good of a signal in the other hi-res models, but the HRRR is consistent..... 1 Link to comment Share on other sites More sharing options...
Stormfly Posted April 27, 2020 Share Posted April 27, 2020 On 4/26/2020 at 7:47 AM, RDM said: Good morning, If you haven't done so already, try cleaning the solar array with a rag and water periodically (if you can easily access it). Suggest not using windex or anything with a solvent in it. The ammonia may do more harm than good on the plastic cover over the array. I clean mine every couple months now. It helps some, or so it seems. But the cloudiness of the plastic cover is getting worse and at some point I'll need to have the array replaced (if that's an option) or just buy a new unit. Davis is probably betting on the 2nd option on purpose. You can buy a replacement cover here: https://www.scaledinstruments.com/shop/davis-instruments/parts/vantage-pro2-parts/housing-parts/davis-7345-114-pro2-iss-sim-solar-panel-front-cover/ Or just the panel: https://www.scaledinstruments.com/shop/davis-instruments/parts/vantage-vue-parts/davis-7011-017-vantage-vue-solar-panel/ Link to comment Share on other sites More sharing options...
Wonderdog Posted April 27, 2020 Share Posted April 27, 2020 22 minutes ago, Eskimo Joe said: Watch DCA hit 90 before May 10th. Let's hope so. Link to comment Share on other sites More sharing options...
Eskimo Joe Posted April 27, 2020 Share Posted April 27, 2020 This is just a casual observation, absolutely not scientific in any way, but it seems like we go from overcast and 47 degrees to full summer a lot quicker since the early 2000s. 2 Link to comment Share on other sites More sharing options...
North Balti Zen Posted April 27, 2020 Share Posted April 27, 2020 1 hour ago, WxUSAF said: Chilly and overcast. How novel It feels like highs in the 70s are the most elusive thing around here (Balitmore area) that people think happen all the time... We go through quite a few days each March - mid-May where we are the wrong side of a wedge and while there may be days with 70s all over central VA they never seem to get here in the same frequency. But we do great zooming from this kind of weather to 88 and above so we go that going for us... Link to comment Share on other sites More sharing options...
JakkelWx Posted April 27, 2020 Share Posted April 27, 2020 Hurricane Dorian's TCR has just been released: https://www.nhc.noaa.gov/data/tcr/AL052019_Dorian.pdf 3 1 Link to comment Share on other sites More sharing options...
snowfan Posted April 27, 2020 Share Posted April 27, 2020 This weather is garbage. No doubt we'll go straight from miserable to torching. Cant have us enjoying a week of 75 and sun. 1 Link to comment Share on other sites More sharing options...
Vice-Regent Posted April 27, 2020 Share Posted April 27, 2020 1 hour ago, WxWatcher007 said: What a storm. A true beast that will go down in the books as a devastating masterpiece. Link to comment Share on other sites More sharing options...
CAPE Posted April 27, 2020 Share Posted April 27, 2020 Mount Holly AFD- Quote Convection is expected on Thursday afternoon and Thursday evening in advance of a cold front approaching from the west. There could be some moderate to heavy rainfall at that time. Much of eastern Pennsylvania, northeastern Maryland, Delaware and New Jersey may receive an inch or two of rain with locally higher amounts possible. A robust low level southerly jet (50+ knots) is anticipated. Its axis may be off the coast before the convection arrives. However, the strong wind profile along with some low level directional shear could result in some organized storms with strong wind gusts in our region. The bolded sounds familiar. Pretty much what happened with this last "event". Some other dynamics appear to be in place for this one though. We shall see. Potential for some heavy rain exists. Link to comment Share on other sites More sharing options...
SomeguyfromTakomaPark Posted April 27, 2020 Share Posted April 27, 2020 9 hours ago, Potvinsux said: Thought the last snowfall here in Snowshoe was the end of winter, then another arrived this morning. About 1/2" and 29°. Nice pics. Denis Potvin is the GOAT though. 1 Link to comment Share on other sites More sharing options...
WxUSAF Posted April 27, 2020 Share Posted April 27, 2020 We’ve basically had six straight months of November 7 2 Link to comment Share on other sites More sharing options...
North Balti Zen Posted April 27, 2020 Share Posted April 27, 2020 48 minutes ago, WxUSAF said: We’ve basically had six straight months of November It’s the Groundhog Day of months. Link to comment Share on other sites More sharing options...
WinterWxLuvr Posted April 28, 2020 Share Posted April 28, 2020 Maybe we can get lucky and get some effing rain LOL. We don’t get some sun soon and I’m gonna lose it. 2 Link to comment Share on other sites More sharing options...
RDM Posted April 28, 2020 Share Posted April 28, 2020 3 hours ago, WxUSAF said: We’ve basically had six straight months of November Great way to look at it. I fear we will make up for this -NAO cool spell in a month or so and pay the price with AN temps for a while... Link to comment Share on other sites More sharing options...
North Balti Zen Posted April 28, 2020 Share Posted April 28, 2020 27 minutes ago, RDM said: Great way to look at it. I fear we will make up for this -NAO cool spell in a month or so and pay the price with AN temps for a while... We paid that price - that was dec - feb Link to comment Share on other sites More sharing options...
yoda Posted April 28, 2020 Share Posted April 28, 2020 3 hours ago, WinterWxLuvr said: Maybe we can get lucky and get some effing rain LOL. We don’t get some sun soon and I’m gonna lose it. Looks like by the weekend we may see a change if the forecast stays... 70 to 75 degrees and some sun Link to comment Share on other sites More sharing options...
Chris78 Posted April 28, 2020 Share Posted April 28, 2020 36 coming over the catoctins this morning by Cunningham falls state park. Pretty darn chilly for almost May. Link to comment Share on other sites More sharing options...
nj2va Posted April 28, 2020 Share Posted April 28, 2020 Oh look, another dreary chilly day. Link to comment Share on other sites More sharing options...
JakkelWx Posted April 28, 2020 Share Posted April 28, 2020 1 Link to comment Share on other sites More sharing options...
Eskimo Joe Posted April 28, 2020 Share Posted April 28, 2020 Looks like WPC bumped up the DY 1-3 QPF to 2"+ from US15 east. Link to comment Share on other sites More sharing options...
Baltimorewx Posted April 28, 2020 Share Posted April 28, 2020 6 hours ago, nj2va said: Oh look, another dreary chilly day. I actually thought it was a decent day. Cloudy at times including now but there was a period where it was fairly sunny and felt good out. At least here anyway 1 Link to comment Share on other sites More sharing options...
nj2va Posted April 28, 2020 Share Posted April 28, 2020 9 minutes ago, Baltimorewx said: I actually thought it was a decent day. Cloudy at times including now but there was a period where it was fairly sunny and felt good out. At least here anyway Quite the opposite. Been cloudy & chilly all day....and actually its been raining for a good portion of the day. Link to comment Share on other sites More sharing options...
yoda Posted April 28, 2020 Share Posted April 28, 2020 59 minutes ago, Eskimo Joe said: Looks like WPC bumped up the DY 1-3 QPF to 2"+ from US15 east. Sounds like LWX is holding off the issuance of any FW/FFW until the early morning update (the 3/4 am time period) Link to comment Share on other sites More sharing options...
BristowWx Posted April 28, 2020 Share Posted April 28, 2020 Been a chilly raw day here. 53 high so far. House is cold..feels like late March Link to comment Share on other sites More sharing options...
CAPE Posted April 28, 2020 Share Posted April 28, 2020 Nice day here. Around 60 with plenty of sun. Has clouded over now. Tomorrow looks very nice, esp early in the day. Link to comment Share on other sites More sharing options...
CAPE Posted April 28, 2020 Share Posted April 28, 2020 The next system looking impressive on guidance currently. From Mount Holly Quote The system continues to trend slower and actually expect through most of the day this heavy rain should stay off to our west until it approaches and moves in late day. Ahead of it, there will continue to be some lighter rain/showers but the bigger concern during the day looks to be gusty southerly winds. LLJ at 925 mb looks to be 50+ knots but the question is how much of this can mix down. Think 30-40+ mph gusts should be doable for most areas near and south of the Fall Line but the GFS indicates even stronger winds may possible with gusts over 50 mph possible so this will have to be watched closely. Quote The main concern for very heavy rain looks to be late day Thursday (most likely after 20z or so) through Thursday evening into the overnight as the south/north oriented front approaches from the west and eventually moves through while a secondary low develops along it. Expect this to bring with it the plume of moderate to heavy rainfall associated with the deep moisture feed from the south. PWATs look to be 1.25 to 1.5 inches associated with the strong LLJ and there will likely be a training pattern to the precip as it moves south to north ahead of front. The upshot is that the rain may be heavy enough Thursday night to result in hydro issues that could be more than just "run of the mill" type problems. 1 Link to comment Share on other sites More sharing options...
WinterWxLuvr Posted April 28, 2020 Share Posted April 28, 2020 On Saturday I made a tee time for today because my NWS forecast was sunny and 64. Reality was an all day rain and temps in the mid 40’s. Now I’m not making this post as some type of criticism. I’m just marveling at the fact that we NEVER get a surprise precip event with much below forecast temps in winter. It seems we never get that surprise snow event. Just think how fun it would be to have that happen just occasionally. 2 Link to comment Share on other sites More sharing options...
CAPE Posted April 28, 2020 Share Posted April 28, 2020 1 hour ago, WinterWxLuvr said: On Saturday I made a tee time for today because my NWS forecast was sunny and 64. Reality was an all day rain and temps in the mid 40’s. Now I’m not making this post as some type of criticism. I’m just marveling at the fact that we NEVER get a surprise precip event with much below forecast temps in winter. It seems we never get that surprise snow event. Just think how fun it would be to have that happen just occasionally. It's the nature of this area that the only 'surprise' events we generally see are complete suckage. Link to comment Share on other sites More sharing options...
Chris78 Posted April 28, 2020 Share Posted April 28, 2020 18 minutes ago, C.A.P.E. said: It's the nature of this area that the only 'surprise' events we generally see are complete suckage. Normally it the surprise 35 and rain instead of the 2 to 4 of snow that was forecasted lol. 1 2 Link to comment Share on other sites More sharing options...
WinterWxLuvr Posted April 28, 2020 Share Posted April 28, 2020 35 minutes ago, C.A.P.E. said: It's the nature of this area that the only 'surprise' events we generally see are complete suckage. Truth Link to comment Share on other sites More sharing options...
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