yoda Posted September 27, 2012 Share Posted September 27, 2012 2050 150 1 S WOODSTOCK SHENANDOAH VA 3886 7852 (LWX) 2117 175 2 S MATHIAS HARDY WV 3885 7887 (LWX) 2259 100 3 NW MIDDLEBURG LOUDOUN VA 3900 7777 (LWX) Link to comment Share on other sites More sharing options...
Ian Posted September 27, 2012 Author Share Posted September 27, 2012 Got into Dulles just in time. Nice light show, CG and crawlers. Shoulda had camera. Link to comment Share on other sites More sharing options...
Ian Posted September 27, 2012 Author Share Posted September 27, 2012 Wow cool shots trix. Thought I saw a lowering in flashes but hard to tell. Was fun coming in through them. Link to comment Share on other sites More sharing options...
yoda Posted September 27, 2012 Share Posted September 27, 2012 Seeing nice C to C lightning and bright flashes to my west and northwest... a good amount of them Link to comment Share on other sites More sharing options...
mattie g Posted September 27, 2012 Share Posted September 27, 2012 Storm coming down 66 looks like it has a little bow thing going on. Link to comment Share on other sites More sharing options...
mattie g Posted September 27, 2012 Share Posted September 27, 2012 Just took the dog for a walk - certainly doesn't feel like September 27 out there. Link to comment Share on other sites More sharing options...
Avdave Posted September 28, 2012 Share Posted September 28, 2012 Lightning has been spectacular at dulles since about 705pm tonight. Left there and just got home and right in Eastern Ashburn the skies opened up and the vivid lightning continued. Temps went from 84 at Dulles to 68 here in Leesburg. Thunder and lightning still rockin the burg. Excellent storm Not the best pic but the storm clouds just to the west of Dulles around 630pm Link to comment Share on other sites More sharing options...
SmokeEater Posted September 28, 2012 Share Posted September 28, 2012 Cell near Manassas turned hard right, now moving SE. Has rotation and an inflow notch. Link to comment Share on other sites More sharing options...
mattie g Posted September 28, 2012 Share Posted September 28, 2012 ST Warning for the cell near Manassas. Link to comment Share on other sites More sharing options...
Ellinwood Posted September 28, 2012 Share Posted September 28, 2012 Just had a house-rattling rumble thunder... nice IC that actually gave me a few bursts of shaking goodness. Link to comment Share on other sites More sharing options...
Ian Posted September 28, 2012 Author Share Posted September 28, 2012 That tail end storm looks pretty suggestive tho lots of outflow. Link to comment Share on other sites More sharing options...
H2O Posted September 28, 2012 Share Posted September 28, 2012 Thunder in the distance. Waiting for the drips to get here. OFB showing up nicely on radar Link to comment Share on other sites More sharing options...
nw baltimore wx Posted September 28, 2012 Share Posted September 28, 2012 Nice shots, Trixie. Awesome. Link to comment Share on other sites More sharing options...
Ian Posted September 28, 2012 Author Share Posted September 28, 2012 MESOSCALE DISCUSSION 2001 NWS STORM PREDICTION CENTER NORMAN OK 0757 PM CDT THU SEP 27 2012 AREAS AFFECTED...NRN VA INTO PARTS OF CENTRAL AND SRN MD INCLUDING THE WASHINGTON DC METRO CONCERNING...SEVERE THUNDERSTORM WATCH 654... VALID 280057Z - 280200Z THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 654 CONTINUES. SUMMARY...THREAT FOR DAMAGING WINDS AND HAIL REMAIN POSSIBLE ACROSS MUCH OF WW 654 THIS EVENING. A CLUSTER OF STORMS...CURRENTLY LOCATED IN FAR NRN VA /GENERALLY IN AN AREA FROM 25 W OF DCA TO 50 AND 65 WSW OF DCA/...PER REGIONAL RADAR IMAGERY WILL PROGRESS EWD WITH THE LEADING PART OF THIS ACTIVITY MOVING ACROSS THE WASHINGTON DC AREA BETWEEN 01-02Z. A TORNADO THREAT CANNOT BE RULED OUT GIVEN VERTICALLY VEERING WINDS COMBINED WITH A STORM MOTION TO THE ESE AT 20-25 KT. COUNTIES IN THE WAKE OF THE MAIN TSTM CLUSTER SHOULD CONTINUE TO HAVE A DIMINISHED SVR WEATHER THREAT AND CAN BE LOCALLY CANCELLED FROM THIS WATCH. PW VALUES OF 1-1.5 INCH AND A SOMEWHAT SLOWER STORM MOTION SUGGEST HEAVY RAINFALL RATES WILL BE POSSIBLE WITH THE STORMS MOVING FROM NRN VA INTO THE WASHINGTON DC METRO AND EVENTUALLY PARTS OF CENTRAL/SRN MD. DISCUSSION...A PROGRESSIVE CLUSTER OF STORMS LOCATED TO THE WSW OF DCA IS LOCATED WITHIN A ZONE OF DEEP LAYER ASCENT ASSOCIATED WITH DIVERGENCE IN THE EXIT REGION OF A 60-65 KT WLY UPPER LEVEL JET EXTENDING FROM SRN WV INTO VA. LOW LEVEL CONVERGENCE MAY BE ENHANCED IN NRN VA ATTENDANT TO A MESOLOW WITHIN THE SRN LOBE OF VORTICITY EXTENDING SWD FROM THE MORE VIGOROUS MIDLEVEL IMPULSE ADVANCING EWD ACROSS SWRN-SOUTH CENTRAL PA TO NRN WV. DESPITE WEAK MIDLEVEL LAPSE RATES...A RELATIVELY MOIST AIR MASS WITH PW VALUES EXCEEDING 1-1.5 INCH CONTINUE TO CONTRIBUTE TO MLCAPE OF 500-1000 J/KG. THIS COMBINED WITH EFFECTIVE BULK SHEAR OF 30-35 KT IS SUFFICIENT FOR STORM ORGANIZATION. ALTHOUGH STRONG WIND GUSTS AND HAIL SHOULD BE THE PRIMARY THREATS... VERTICALLY VEERING WINDS IN THE LOWER TROPOSPHERE AND STORM MOTIONS TO THE ESE AT 20-25 KT RESULT IN LOW LEVEL SRH VALUES /0-3 KM NEAR 400 M2 PER S2/ SUPPORTING LOW LEVEL STORM ROTATION AND A LOW PROBABILITY FOR A TORNADO. ..PETERS.. 09/28/2012 Link to comment Share on other sites More sharing options...
yoda Posted September 28, 2012 Share Posted September 28, 2012 Watching the cell back in Orange County developing a hail core Link to comment Share on other sites More sharing options...
yoda Posted September 28, 2012 Share Posted September 28, 2012 Nice 00z sounding from IAD -- http://www.spc.noaa.gov/exper/soundings/12092800_OBS/IAD.gif Link to comment Share on other sites More sharing options...
Ian Posted September 28, 2012 Author Share Posted September 28, 2012 Nice 00z sounding from IAD -- http://www.spc.noaa....800_OBS/IAD.gif If that tail storm wasn't undercut by outflow it might do something. Link to comment Share on other sites More sharing options...
yoda Posted September 28, 2012 Share Posted September 28, 2012 Big hail core headed toward EZF... watch out down there Link to comment Share on other sites More sharing options...
AmericanWxFreak Posted September 28, 2012 Share Posted September 28, 2012 A nice cluster to my northwest.. a nice cluster to the south west. In columbia, light to moderate rain. Link to comment Share on other sites More sharing options...
yoda Posted September 28, 2012 Share Posted September 28, 2012 Storms in the SW portion if teh cluster keep redevloping and hail cores appear and disappear Link to comment Share on other sites More sharing options...
Ian Posted September 28, 2012 Author Share Posted September 28, 2012 Looks like the corn dust is winning Link to comment Share on other sites More sharing options...
Ian Posted September 28, 2012 Author Share Posted September 28, 2012 Nice positive strikes every few minutes. Zapped my cable briefly. Internet not back. Link to comment Share on other sites More sharing options...
yoda Posted September 28, 2012 Share Posted September 28, 2012 Jesus.... positive strike just ROCKED teh house Link to comment Share on other sites More sharing options...
Fozz Posted September 28, 2012 Share Posted September 28, 2012 More lightning and thunder Link to comment Share on other sites More sharing options...
mattie g Posted September 28, 2012 Share Posted September 28, 2012 Jesus.... positive strike just ROCKED teh house Yup. That was teh crazy. Link to comment Share on other sites More sharing options...
mdhokie Posted September 28, 2012 Share Posted September 28, 2012 This feels just like winter, waiting for the snow to come, but it just hangs out to the west. Looks like the rain is barely making it past i-95. Link to comment Share on other sites More sharing options...
H2O Posted September 28, 2012 Share Posted September 28, 2012 Amazing rolling thunder. Some have lasted 10 sec easily Link to comment Share on other sites More sharing options...
stormkid Posted September 28, 2012 Share Posted September 28, 2012 Sitting on the front porch earlier as storms moved in we saw at least four huge branching cloud to cloud lightning flashes overhead. Caught one with the cell phone. Had a few CGs strikes nearby during the storm that were crazy loud. Link to comment Share on other sites More sharing options...
TalcottWx Posted September 28, 2012 Share Posted September 28, 2012 Expansive cloud to cloud lightning here. One deep roar after that. Link to comment Share on other sites More sharing options...
WEATHER53 Posted September 28, 2012 Share Posted September 28, 2012 Looks like the corn dust is winning I've been watching that happen more often than seems probable. Starting to think there is something up with that idea. Really got window rattling rocked here right at 10pm. Link to comment Share on other sites More sharing options...
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