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Severe weather threat - June 9, 2011


WxUSAF

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BULLETIN - EAS ACTIVATION REQUESTED

SEVERE THUNDERSTORM WARNING

NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC

622 PM EDT THU JUN 9 2011

THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

PAGE COUNTY IN NORTHWEST VIRGINIA...

RAPPAHANNOCK COUNTY IN NORTHWEST VIRGINIA...

FAUQUIER COUNTY IN NORTHERN VIRGINIA...

WARREN COUNTY IN NORTHWEST VIRGINIA...

SHENANDOAH COUNTY IN NORTHWEST VIRGINIA...

* UNTIL 700 PM EDT

* AT 621 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A

SEVERE THUNDERSTORM CAPABLE OF PRODUCING HAIL UP TO THE SIZE OF

PING PONG BALLS AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM

WAS LOCATED 17 MILES SOUTHWEST OF FRONT ROYAL...OR 13 MILES

SOUTHWEST OF STRASBURG...AND MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...

FRONT ROYAL...

BROWNTOWN...

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mcd1160.gif

MESOSCALE DISCUSSION 1160

NWS STORM PREDICTION CENTER NORMAN OK

0517 PM CDT THU JUN 09 2011

AREAS AFFECTED...S-CNTRL PA...CNTRL/ERN WV...NRN VA...WASHINGTON

DC...MD

CONCERNING...SEVERE THUNDERSTORM WATCH 451...

VALID 092217Z - 092315Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 451

CONTINUES.

THE POTENTIAL FOR SVR THUNDERSTORMS WILL CONTINUE ACROSS PRIMARILY

NRN AND ERN PORTIONS OF THE WW AREA. ISOLATED THUNDERSTORMS HAVE

DEVELOPED OVER NWRN VA...AND MAY APPROACH THE WASHINGTON DC METRO

AREA AFTER 23Z WITH THE POTENTIAL FOR DMGG WIND GUSTS AND LARGE

HAIL.

LATEST SFC ANALYSIS PLACES A COLD FRONT FROM IPT TO 15 NNE MGW TO 25

SSW ZZV....WITH A PREFRONTAL CONFLUENCE ZONE /NOTED BY WLY WIND

SHIFT IN ITS WAKE/ POSITIONED OVER NWRN VA. ISOLATED THUNDERSTORMS

HAVE FORMED ALONG THIS CONFLUENCE ZONE...WHICH IS LOCATED WITHIN A

VERY HOT BOUNDARY LAYER /CHARACTERIZED BY SFC TEMPERATURES IN THE

MID-UPPER 90S/. THE STRONGEST MIDLEVEL FLOW REMAINS POSITIONED

ACROSS NRN PORTIONS OF THE WW /PRIMARILY SRN PA/ AND WILL YIELD

EFFECTIVE SHEAR SUPPORTIVE OF MARGINALLY ORGANIZED STORM STRUCTURES.

FARTHER S...MIDLEVEL FLOW DECREASES RAPIDLY AND SHOULD TEND TO LIMIT

STORM ORGANIZATION...THOUGH MODEST LOW-LEVEL FORCING ALONG THE

CONFLUENCE ZONE AND A VERY UNSTABLE ENVIRONMENT WILL SUPPORT SMALL

MULTICELL CLUSTERS. REGARDLESS...THE POTENTIAL FOR DMGG WIND GUSTS

/OWING TO STEEP LOW-LEVEL LAPSE RATES/ AND LARGE HAIL /WITH MLCAPE

VALUES RANGING FROM 2000-3000 J/KG/ WILL CONTINUE FROM SRN PA INTO

NRN VA.

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Don't get struck!

Im inside. It was pretty vivid and to be able to see it that well for this time of the day. One more flash and rumble and now it is raining

No Leesburg split with that one. It's gon rane.

Indeed. We are getting our due, hope it just rains for a solid hour, just not coming down yet, still call it fat drops light rain

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Here you go, Dave:

*I have no idea why it's formatted this way

BULLETIN - EAS ACTIVATION REQUESTEDSEVERE THUNDERSTORM WARNINGNATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC644 PM EDT THU JUN 9 2011THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A* SEVERE THUNDERSTORM WARNING FOR... MONTGOMERY COUNTY IN CENTRAL MARYLAND... RAPPAHANNOCK COUNTY IN NORTHWEST VIRGINIA... FAUQUIER COUNTY IN NORTHERN VIRGINIA... WARREN COUNTY IN NORTHWEST VIRGINIA... CLARKE COUNTY IN NORTHWEST VIRGINIA... LOUDOUN COUNTY IN NORTHERN VIRGINIA... PRINCE WILLIAM COUNTY IN NORTHERN VIRGINIA... FAIRFAX COUNTY IN NORTHERN VIRGINIA...* UNTIL 730 PM EDT* AT 642 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING HAIL UP TO THE SIZE OF QUARTERS AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM LEESBURG TO 15 MILES SOUTHWEST OF FRONT ROYAL...AND MOVING SOUTHEAST AT 15 MPH.* LOCATIONS IMPACTED INCLUDE... ST. LOUIS... LEESBURG... DELAPLANE... OATLANDS... LANSDOWNE... POOLESVILLE... HUME... ASHBURN...

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Here you go, Dave:

BULLETIN - EAS ACTIVATION REQUESTEDSEVERE THUNDERSTORM WARNINGNATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC644 PM EDT THU JUN 9 2011THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A* SEVERE THUNDERSTORM WARNING FOR... MONTGOMERY COUNTY IN CENTRAL MARYLAND... RAPPAHANNOCK COUNTY IN NORTHWEST VIRGINIA... FAUQUIER COUNTY IN NORTHERN VIRGINIA... WARREN COUNTY IN NORTHWEST VIRGINIA... CLARKE COUNTY IN NORTHWEST VIRGINIA... LOUDOUN COUNTY IN NORTHERN VIRGINIA... PRINCE WILLIAM COUNTY IN NORTHERN VIRGINIA... FAIRFAX COUNTY IN NORTHERN VIRGINIA...* UNTIL 730 PM EDT* AT 642 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING HAIL UP TO THE SIZE OF QUARTERS AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM LEESBURG TO 15 MILES SOUTHWEST OF FRONT ROYAL...AND MOVING SOUTHEAST AT 15 MPH.* LOCATIONS IMPACTED INCLUDE... ST. LOUIS... LEESBURG... DELAPLANE... OATLANDS... LANSDOWNE... POOLESVILLE... HUME... ASHBURN...

Yeah saw that Kim., Thanks :)

Pouring wind driven rain now with the winds blowing pretty good. Not much noise though, but will take the liquid

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