Kmlwx Posted April 30, 2021 Share Posted April 30, 2021 Coworker says his folks lost power up near Clear Spring. Must have been with the gusts from that line. Link to comment Share on other sites More sharing options...
MN Transplant Posted April 30, 2021 Share Posted April 30, 2021 Winchester gusted to 56. Link to comment Share on other sites More sharing options...
Eskimo Joe Posted April 30, 2021 Share Posted April 30, 2021 Man it's really kicking now. Link to comment Share on other sites More sharing options...
Kmlwx Posted April 30, 2021 Share Posted April 30, 2021 Link to comment Share on other sites More sharing options...
Kmlwx Posted April 30, 2021 Share Posted April 30, 2021 Wtf...did they just issue a severe thunderstorm warning? 1 Link to comment Share on other sites More sharing options...
Stormfly Posted April 30, 2021 Share Posted April 30, 2021 We've had better winds without even an advisory (Christmas Eve) here. Sure they're been some gusts here and there and the 43mph peak (not even 3 second standard) is pretty weak. Not that I'm complaining! LOL But it looks like the warning is staying for us because some stronger winds are inbound. Too bad it's not 18 degrees and snowing with thunder. I don't care what kind of weather nut you are, that's just about as good as it gets. And nobody loses their house in the process. Link to comment Share on other sites More sharing options...
Eskimo Joe Posted April 30, 2021 Share Posted April 30, 2021 Tree came down on my neighbor's house. 4 Link to comment Share on other sites More sharing options...
Kmlwx Posted April 30, 2021 Share Posted April 30, 2021 REAL nice gust just now. Was standing on the front walkway watching and a bunch of little twigs started raining down and blowing out of the trees. They sting! Link to comment Share on other sites More sharing options...
midatlanticweather Posted April 30, 2021 Share Posted April 30, 2021 That line of showers brings the gusts down! Had about 5 minutes of sustained winds bouncing up to 45 to 50mph but I had no way to measure the gusts! WOW! Watch out when the showers come through! Link to comment Share on other sites More sharing options...
midatlanticweather Posted April 30, 2021 Share Posted April 30, 2021 6 minutes ago, Kmlwx said: Wtf...did they just issue a severe thunderstorm warning? That line of showers brought some of the best severe winds of the Spring! WOW! Link to comment Share on other sites More sharing options...
Kmlwx Posted April 30, 2021 Share Posted April 30, 2021 Just now, midatlanticweather said: That line of showers brought some of the best severe winds of the Spring! WOW! It's always the sneaky events! Tree down at the bottom of the street doing all kinds of creaking. If it falls it's taking the pole at the dead end out with it. Link to comment Share on other sites More sharing options...
Kmlwx Posted April 30, 2021 Share Posted April 30, 2021 JYO gusted to 60mph Link to comment Share on other sites More sharing options...
George BM Posted April 30, 2021 Author Share Posted April 30, 2021 Just now, Kmlwx said: JYO gusted to 60mph As did IAD. Link to comment Share on other sites More sharing options...
vastateofmind Posted April 30, 2021 Share Posted April 30, 2021 10 minutes ago, Kmlwx said: Wtf...did they just issue a severe thunderstorm warning? Yep, just got the wx radio alert. Hardly anything on radar though?? Link to comment Share on other sites More sharing options...
arlwx Posted April 30, 2021 Share Posted April 30, 2021 (snip) BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Baltimore MD/Washington DC 439 PM EDT Fri Apr 30 2021 The National Weather Service in Sterling Virginia has issued a * Severe Thunderstorm Warning for... The District of Columbia... South central Howard County in central Maryland... Southern Montgomery County in central Maryland... Prince Georges County in central Maryland... West central Anne Arundel County in central Maryland... Northwestern Charles County in southern Maryland... Southeastern Loudoun County in northern Virginia... The City of Falls Church in northern Virginia... Fairfax County in northern Virginia... East central Fauquier County in northern Virginia... The City of Manassas Park in northern Virginia... Prince William County in northern Virginia... The City of Manassas in northern Virginia... The City of Fairfax in northern Virginia... Arlington County in northern Virginia... The City of Alexandria in northern Virginia... * Until 515 PM EDT. * At 438 PM EDT, severe thunderstorms were located along a line extending from Montgomery Village to near Chantilly to Warrenton, moving east at 65 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Damaging winds will cause some trees and large branches to fall. This could injure those outdoors, as well as damage homes and vehicles. Roadways may become blocked by downed trees. Localized power outages are possible. Unsecured light objects may become projectiles. (snip) Link to comment Share on other sites More sharing options...
Kmlwx Posted April 30, 2021 Share Posted April 30, 2021 I like how the "storm" motion in the warning is faster than the wind gusts Link to comment Share on other sites More sharing options...
jacindc Posted April 30, 2021 Share Posted April 30, 2021 5 minutes ago, vastateofmind said: Yep, just got the wx radio alert. Hardly anything on radar though?? Sure has gotten dark here on the Hill, though. 1 Link to comment Share on other sites More sharing options...
PrinceFrederickWx Posted April 30, 2021 Share Posted April 30, 2021 This may be the first time I've ever seen a red flag warning, a high wind warning, a severe thunderstorm warning and a freeze warning all on the same LWX map simultaneously. 7 Link to comment Share on other sites More sharing options...
CAPE Posted April 30, 2021 Share Posted April 30, 2021 Hearing some thunder. This should be the leading edge of the stronger winds. Latest from Mount Holly- A strong perturbation, now evident on moisture- channel imagery over the Great Lakes region, was sampled at 500 mb in the Upper Midwest with an attendant 90+ kt jet streak surging southeastward. The 500-mb temperatures were quite cold for this time of year near the center of the low, with readings near or below -30C in northern Michigan into central Ontario. Intense 850-mb cold advection was occurring in the Great Lakes region and is racing southeastward into the Appalachians this afternoon. A band of showers in advance of the aforementioned perturbation had developed in the central Appalachians and will likely move through portions of the area late this afternoon and early this evening, especially for the southern half of the CWA. Nudged PoPs upward just a little bit more, based on upstream radar trends. With 40-50 kt winds at the top of the mixed layer, would expect strong to locally damaging wind gusts in proximity to these showers. Synoptic-scale winds will then surge for a time after the stronger cold advection sweeps across the area this evening, collocated with intense surface- pressure rises behind the reinforcing front late this afternoon. Models have trended slightly lower with gusts this afternoon/evening, but they also have verified on the low side so far today. As a result, continued to forecast winds higher than guidance, with the peak timing generally 21z to 03z with a diminishing trend thereafter as the surface pressure rises gradually lessen. All of this said, the high wind warning was unchanged with this update, with numerous impacts expected across the region. 1 Link to comment Share on other sites More sharing options...
MN Transplant Posted April 30, 2021 Share Posted April 30, 2021 Roaring out there. Lost power so I can’t see the instantaneous gusts, but we are definitely going over 50. Link to comment Share on other sites More sharing options...
csnavywx Posted April 30, 2021 Share Posted April 30, 2021 It's high-based shower activity sitting on the top of an inverted-V thermal profile. Much more typical of the West, but in this case, with high gradient winds and a low tropopause. Most of the precip evaporates before hitting the surface, but strong evaporational cooling into a dry-adiabatic sub-cloud layer is able to efficiently mix down winds from aloft. 3 3 Link to comment Share on other sites More sharing options...
mappy Posted April 30, 2021 Share Posted April 30, 2021 9 minutes ago, vastateofmind said: Yep, just got the wx radio alert. Hardly anything on radar though?? So the lead line getting ready to hit DC is the gust front from the larger line behind it. Winds picked up so much in it they issued a severe warning for it. 1 Link to comment Share on other sites More sharing options...
Kmlwx Posted April 30, 2021 Share Posted April 30, 2021 Any ground truth from the next batch of precip coming through the mountains now? Link to comment Share on other sites More sharing options...
canderson Posted April 30, 2021 Share Posted April 30, 2021 Chiming in from Harrisbug where we had an official 62 earlier and lots and lots and lots in the 50s. Link to comment Share on other sites More sharing options...
mappy Posted April 30, 2021 Share Posted April 30, 2021 2 minutes ago, Kmlwx said: Any ground truth from the next batch of precip coming through the mountains now? Not sure if this is from the first round or second? Link to comment Share on other sites More sharing options...
SnowenOutThere Posted April 30, 2021 Share Posted April 30, 2021 I think that was the only time that a severe thunderstorm warning verified for us (east of Dulles airport). Link to comment Share on other sites More sharing options...
GATECH Posted April 30, 2021 Share Posted April 30, 2021 On the doorstep. 60mph Gusts on the way... Link to comment Share on other sites More sharing options...
SnowenOutThere Posted April 30, 2021 Share Posted April 30, 2021 Just now, GATECH said: On the doorstep. 60mph Gusts on the way... Out near Dulles it was crazy, I was in the middle of mowing and there were a solid three prolonged wind gusts over 60 I would think Link to comment Share on other sites More sharing options...
mappy Posted April 30, 2021 Share Posted April 30, 2021 Just now, wxtrix said: that’s from the first round. Thank you! Link to comment Share on other sites More sharing options...
peribonca Posted April 30, 2021 Share Posted April 30, 2021 Wisp webcam shows it's snowing up there. That place is amazing. Link to comment Share on other sites More sharing options...
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