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Severe Thunderstorm Watch 391
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   SEL1
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 391
   NWS STORM PREDICTION CENTER NORMAN OK
   1130 AM EDT WED JUN 13 2007
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          MUCH OF THE NORTHERN AND CENTRAL FLORIDA PENINSULA
          PARTS OF SOUTHEAST GEORGIA
          COASTAL WATERS
   
   EFFECTIVE THIS WEDNESDAY MORNING AND EVENING FROM 1130 AM UNTIL
   700 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 55
   STATUTE MILES EAST AND WEST OF A LINE FROM 5 MILES NORTH OF
   WAYCROSS GEORGIA TO 40 MILES SOUTHWEST OF MELBOURNE FLORIDA.  FOR
   A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU1).
   
   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.
   
   DISCUSSION...COLD UPPER VORT SERN GA CONTINUES MOVING SEWD AND WILL
   AID IN DEVELOPMENT OF SEVERE THUNDERSTORMS THIS AFTERNOON SWD TO
   CENTRAL FL.  WITH MLCAPES CLIMBING TO AOA 2000 J/KG AND 30KT OF DEEP
   LAYER SHEAR...A FEW SUPERCELLS ARE POSSIBLE...PARTICULARLY VICINITY
   E COAST SEA BREEZE FRONT.  PRIMARY THREAT WILL BE LARGE HAIL AND
   DOWNBURSTS.
   
   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 27020.
   
   
   ...HALES
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Page last modified: September 21, 2020
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