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Severe Thunderstorm Watch 244
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WW0244 Radar
Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
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   SEL4
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 244
   NWS STORM PREDICTION CENTER NORMAN OK
   150 PM EDT SUN MAY 6 2007
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          FLORIDA PENINSULA
          COASTAL WATERS
   
   EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 150 PM UNTIL 800
   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 65
   STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES NORTH OF
   OCALA FLORIDA TO 65 MILES SOUTH SOUTHWEST OF WEST PALM BEACH
   FLORIDA.  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 243...
   
   DISCUSSION...INITIATION OF THUNDERSTORMS IS UNDERWAY IN MODERATELY
   UNSTABLE ENVIRONMENT WITH SUFFICIENT SHEAR FOR AT LEAST SHORT-LIVED
   SUPERCELLS.  RISK...PRIMARILY...FOR LARGE HAIL/DAMAGING WINDS WILL
   INCREASE THROUGH THE AFTERNOON AS LARGE-SCALE ASCENT ASSOCIATED WITH
   WEAK UPPER TROUGH PROMOTES INCREASING COVERAGE OF STORMS SOUTHWARD
   THROUGH THE CENTRAL/SOUTHERN FLORIDA PENINSULA.
   
   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 36025.
   
   
   ...KERR/HALES
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