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Severe Thunderstorm Watch 100
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WW0100 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
Moderate Low

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL0
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 100
   NWS STORM PREDICTION CENTER NORMAN OK
   125 PM EDT WED APR 1 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          PARTS OF THE NORTHERN AND CENTRAL FLORIDA PENINSULA
          COASTAL WATERS
   
   EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 125 PM UNTIL
   900 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 80
   STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES NORTH OF
   GAINESVILLE FLORIDA TO 30 MILES WEST SOUTHWEST OF ORLANDO
   FLORIDA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).
   
   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...TSTMS ARE EXPECTED TO DEVELOP THIS AFTERNOON ALONG
   DIFFERENTIAL HEATING/OUTFLOW BOUNDARY SITUATED ACROSS THE NRN
   PENINSULA.  ADDITIONAL...ONGOING STORMS OVER THE NERN GULF OF MEXICO
   SHOULD MOVE INTO THE BIG BEND AREA THIS AFTERNOON...AND EVENTUALLY
   ACROSS THE PENINSULA LATER TODAY.  GIVEN THE MOIST/MODERATELY
   UNSTABLE AIR MASS AND 40-50+ KT OF DEEP-LAYER SHEAR...ENVIRONMENT
   WILL BE FAVORABLE FOR THE DEVELOPMENT OF ORGANIZED TSTMS...INCLUDING
   SUPERCELLS AND/OR BOWS WITH THE THREAT FOR HAIL AND 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 28030.
   
   
   ...MEAD/THOMPSON
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Page last modified: April 01, 2009
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