SPC Severe Thunderstorm Watch 682
Wed, 22 Sep 2010 13:45:03 -0500
URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 682 NWS STORM PREDICTION CENTER NORMAN OK 245 PM EDT WED SEP 22 2010 THE NWS STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF DISTRICT OF COLUMBIA MARYLAND NORTHERN VIRGINIA EASTERN WEST VIRGINIA PANHANDLE COASTAL WATERS EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 245 PM UNTIL 1000 PM EDT. HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 55 STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES NORTH NORTHWEST OF BALTIMORE MARYLAND TO 20 MILES EAST SOUTHEAST OF CHARLOTTESVILLE VIRGINIA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2). REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES. OTHER WATCH INFORMATION...CONTINUE...WW 680...WW 681... DISCUSSION...TSTMS ARE EXPECTED TO INTENSIFY ALONG LEE TROUGH AND MOVE INTO THE REGION FROM THE W/NW AS AIR MASS CONTINUES TO WARM/DESTABILIZE. WHILE AREA RESIDES ALONG SRN FRINGE OF STRONGER...ZONAL MID AND HIGH-LEVEL WIND FIELD...SUFFICIENT VERTICAL SHEAR WILL EXIST TO SUPPORT ORGANIZED STORMS INCLUDING MULTICELLS AND BOWING LINE SEGMENTS WITH A RISK FOR DAMAGING WIND GUSTS. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 27025. ...MEADRead more
SPC Severe Thunderstorm Watch 682 Status Reports
Wed, 22 Sep 2010 13:45:11 -0500
STATUS FOR WATCH 0682 HAS NOT BEEN ISSUED YETRead more
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