Tuesday, April 26, 2011

April 26: Severe Thunderstorm Watch #2


URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 214
   NWS STORM PREDICTION CENTER NORMAN OK
   210 PM EDT TUE APR 26 2011
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          WESTERN MARYLAND
          NORTH CENTRAL NORTH CAROLINA
          WESTERN VIRGINIA
          MUCH OF WEST VIRGINIA
   
   EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 210 PM UNTIL
   900 PM EDT.
   
   HAIL TO 2 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 110
   STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES EAST
   NORTHEAST OF MORGANTOWN WEST VIRGINIA TO 60 MILES SOUTH SOUTHWEST
   OF DUBLIN VIRGINIA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE
   THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).
   
   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 213...
   
   DISCUSSION...SCATTERED THUNDERSTORMS ARE SLOWLY INTENSIFYING ACROSS
   THE WATCH AREA IN A BROAD AREA OF MODERATE INSTABILITY AND WEAK
   ASCENT.  SUFFICIENT MID LEVEL WINDS AND LOW LEVEL LAPSE RATES WILL
   SUPPORT A RISK OF A FEW SEVERE THUNDERSTORMS THROUGH THE EVENING
   WITH DAMAGING WINDS AND HAIL.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 21035.
   

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