CranberryWX Posted April 20, 2011 Share Posted April 20, 2011 Tornado Watch keeps marching eastward, almost up to the WV border. CRW thinks the storms will run out of steam though. It's still warm and muggy for this time of night at 78...80 at the airport. It should have something to work with when it gets here...I expect to be woke up by thunder and wind sometime tonight. . Link to comment Share on other sites More sharing options...
Joe Vanni Posted April 20, 2011 Share Posted April 20, 2011 the setup is sort of marginal around here. im not sure why spc went 30% earlier, but the energy the nam pushes through could probably verify a high wind threat if it comes together right. it's a bit early but not horrible i guess -- noon-4? im not sure how much faith i'd put in timing it into that window though, so later in the day could still easily be in play. most of the mid-lvl vorticity is well north and the trough configuration is so/so.. i dont think it's a setup where you'd get more than one round of storms. Gocha, thanks man. The last time that happened for my area I think was the early June '08 outbreak day. Had that crazy line come through, then a storm a few hours later that produced hail. Link to comment Share on other sites More sharing options...
yoda Posted April 20, 2011 Share Posted April 20, 2011 Tornado watch west va and sw va until 9 am... severe tstorm watch for northern wv and sw pa till 9 am Link to comment Share on other sites More sharing options...
CranberryWX Posted April 20, 2011 Share Posted April 20, 2011 Tornado Watch cancelled in the early morning hours. Those storms died off after reaching WV last night. I heard the wind gust around 4:30AM, but only 0.08" in the gauge as of 7AM. Just some light showers moving through right now. It's cooling off, down to 62 after holding into the upper 70's most of the night. Link to comment Share on other sites More sharing options...
snowfan Posted April 20, 2011 Share Posted April 20, 2011 Today is meh. Link to comment Share on other sites More sharing options...
mappy Posted April 20, 2011 Share Posted April 20, 2011 Definitely Meh today ...MID ATLANTIC/NORTHEAST... DEEP WSWLY FLOW ON S SIDE OF WEAKENING UPR DISTURBANCE WILL LIMIT LOW-LVL CONVERGENCE IN AXIS OF WARM/MOIST AIR E OF THE MOUNTAINS OVER MD/VA TODAY. SHALLOW W/E WARM FRONT NOW OVER SRN PA/NJ SHOULD MOVE/MIX N INTO THE HUDSON VLY/SRN NEW ENGLAND BY AFTERNOON...GIVEN STRENGTH OF WIND FIELD ASSOCIATED WITH UPSTATE NY SFC LOW. CLOUD DEBRIS FROM OVERNIGHT QLCS WILL RETARD SFC HEATING/ DESTABILIZATION IN WARM SECTOR...AND ALONG EWD-ADVANCING COLD FRONT. COUPLED WITH WEAK CONVERGENCE...EXPECT THAT COVERAGE OF ANY DIURNALLY-DRIVEN STORMS ALONG/AHEAD OF THE FRONT WILL REMAIN SPARSE. NEVERTHELESS...ANY STORMS THAT DO FROM WILL HAVE THE POTENTIAL TO YIELD LOCALLY DMGG WIND GIVEN STRENGTH OF LOW-LVL WIND FIELD...AND INCREASING FORCING FOR ASCENT ASSOCIATED WITH UPSTREAM UPR IMPULSE. ANY SVR THREAT THAT DOES EVOLVE SHOULD DIMINISH BY SUNSET. Link to comment Share on other sites More sharing options...
Ellinwood Posted April 20, 2011 Share Posted April 20, 2011 Today is meh. Definitely Meh today Indeed. Link to comment Share on other sites More sharing options...
Ian Posted April 20, 2011 Share Posted April 20, 2011 this forcing just wont do much.. we're probably capped too with decent waa http://www.nco.ncep.noaa.gov/pmb/nwprod/analysis/namer/nam/12/images/nam_500_006m.gif Link to comment Share on other sites More sharing options...
North Balti Zen Posted April 20, 2011 Share Posted April 20, 2011 So "meh" meaning warm and maybe dry? Yes please. Link to comment Share on other sites More sharing options...
Ellinwood Posted April 20, 2011 Share Posted April 20, 2011 Discussion: The main threat is for individual cells or small lines of damaging winds from storms that are expected to develop along the cold front as it passes through this afternoon/evening. Storms should be isolated, but those that do form have good mid-level lapse rates to gain momentum off of. Somewhat dry low-levels and downsloping WSW-erly surface winds will inhibit these storms to a degree, with high-level clouds and high LCLs also working against storm development. Any storms that do form should die off quickly once the instability fades around sunset. There won't be any chasing today, but there's still a chance that some storms could develop locally to video and photograph. It certainly doesn't look like a widespread event, and I don't expect much beyond some spotty reports to come out of today's storms. Link to comment Share on other sites More sharing options...
Kmlwx Posted April 20, 2011 Author Share Posted April 20, 2011 They probably could have covered this threat with a 5% see text. I've seen 5% days look more impressive than this. Link to comment Share on other sites More sharing options...
Ian Posted April 20, 2011 Share Posted April 20, 2011 They probably could have covered this threat with a 5% see text. I've seen 5% days look more impressive than this. prepare for the gust front! A gust front from dissipated thunderstorm activity across the Ohio Valley...will continue to slide south and eastward over the I-95 corridor in the next couple of hours. Brief wind gusts along this boundary will reach between 30 and 40 mph. These stronger wind gusts may only last on the order of a few minutes.Coastal Flood Advisory in effect until 2 PM EDT this afternoon... Link to comment Share on other sites More sharing options...
mappy Posted April 20, 2011 Share Posted April 20, 2011 Bye bye slight risk Link to comment Share on other sites More sharing options...
Kmlwx Posted April 20, 2011 Author Share Posted April 20, 2011 Whoa new SPC maps!!!!! Link to comment Share on other sites More sharing options...
BethesdaWX Posted April 20, 2011 Share Posted April 20, 2011 prepare for the gust front! A gust front from dissipated thunderstorm activity across the Ohio Valley...will continue to slide south and eastward over the I-95 corridor in the next couple of hours. Brief wind gusts along this boundary will reach between 30 and 40 mph. These stronger wind gusts may only last on the order of a few minutes.Coastal Flood Advisory in effect until 2 PM EDT this afternoon... Did that Gust front come thru earlier? There were some hefty gusts around 10AM here out of the west for a short timespan, strong enough to make noises on the Glass Doors to the porch. Link to comment Share on other sites More sharing options...
chris87 Posted April 20, 2011 Share Posted April 20, 2011 did you submit a local storm report? Did that Gust front come thru earlier? There were some hefty gusts around 10AM here out of the west for a short timespan. Link to comment Share on other sites More sharing options...
BethesdaWX Posted April 20, 2011 Share Posted April 20, 2011 did you submit a local storm report? Why would I do that? All the Wxbug stations picked it up around here, most in the 25mph range. Link to comment Share on other sites More sharing options...
Ian Posted April 20, 2011 Share Posted April 20, 2011 Did that Gust front come thru earlier? There were some hefty gusts around 10AM here out of the west for a short timespan, strong enough to make noises on the Glass Doors to the porch. it might have Link to comment Share on other sites More sharing options...
mappy Posted April 20, 2011 Share Posted April 20, 2011 Whoa new SPC maps!!!!! I like them! Link to comment Share on other sites More sharing options...
mappy Posted April 20, 2011 Share Posted April 20, 2011 it might have ??? An hour ago you said it would come through in the next couple of hours Link to comment Share on other sites More sharing options...
Ian Posted April 20, 2011 Share Posted April 20, 2011 ??? An hour ago you said it would come through in the next couple of hours it was an NWS nowcast from like 9:45 a.m. Link to comment Share on other sites More sharing options...
mappy Posted April 20, 2011 Share Posted April 20, 2011 it was an NWS nowcast from like 9:45 a.m. Ahhhh... details you didn't share with the rest of us. I'm so stunad Link to comment Share on other sites More sharing options...
chris87 Posted April 20, 2011 Share Posted April 20, 2011 it was a joke Why would I do that? All the Wxbug stations picked it up around here, most in the 25mph range. Link to comment Share on other sites More sharing options...
BethesdaWX Posted April 20, 2011 Share Posted April 20, 2011 it was a joke I suck at literal sarcasm I guess Link to comment Share on other sites More sharing options...
chris87 Posted April 20, 2011 Share Posted April 20, 2011 it happens I suck at literal sarcasm I guess Link to comment Share on other sites More sharing options...
Avdave Posted April 20, 2011 Share Posted April 20, 2011 Whoa new SPC maps!!!!! I actually like them. did you submit a local storm report? Link to comment Share on other sites More sharing options...
BethesdaWX Posted April 20, 2011 Share Posted April 20, 2011 Germantown MD just gusted to 40mph at wxbug headquarters http://weather.weatherbug.com/MD/Germantown-weather.html?zcode=z6286&stat=AWSHQ Link to comment Share on other sites More sharing options...
WinterWxLuvr Posted April 20, 2011 Share Posted April 20, 2011 Don't know if it was the celebrated gust front, but the winds howled here for about 15 minutes and now it is dead calm. Link to comment Share on other sites More sharing options...
Ian Posted April 20, 2011 Share Posted April 20, 2011 Patch of taller cumulus to the NW but doesn't seem to be doing much. Link to comment Share on other sites More sharing options...
Ian Posted April 20, 2011 Share Posted April 20, 2011 Got some briefly gusty winds as it moved overhead.. maybe a windshift of some sort. Link to comment Share on other sites More sharing options...
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