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Severe Thunderstorm Watch 27
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WW0027 Radar
Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL7
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 27
   NWS STORM PREDICTION CENTER NORMAN OK
   845 PM EST WED FEB 18 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTHERN ALABAMA
          WESTERN FLORIDA PANHANDLE
          SOUTHEAST MISSISSIPPI
   
   EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 845 PM
   UNTIL 200 AM EST.
   
   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 95
   STATUTE MILES EAST AND WEST OF A LINE FROM 55 MILES NORTH OF
   SELMA ALABAMA TO 75 MILES SOUTHEAST OF PINE BELT MISSISSIPPI. 
   FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU7).
   
   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 24...WW 25...WW 26...
   
   DISCUSSION...THUNDERSTORMS CONTINUE TO DEVELOP ACROSS PARTS OF MS
   AND SPREAD EASTWARD INTO AL.  PERSISTENT SOUTHWESTERLY LOW LEVEL
   WINDS WILL MAINTAIN INFLUX OF MOISTURE AND SUFFICIENT INSTABILITY
   FOR ISOLATED SEVERE/SUPERCELL STORMS.  BOUNDARY LAYER IS EXPECTED TO
   DECOUPLE...WITH LARGE HAIL BEING THE MAIN THREAT THROUGH THE PERIOD.
   
   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 27035.
   
   
   ...HART
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Page last modified: February 19, 2009
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