SEL3
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 233
   NWS STORM PREDICTION CENTER NORMAN OK
   125 PM CDT FRI APR 21 2006
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          MUCH OF ALABAMA
          WESTERN FLORIDA PANHANDLE
          EASTERN MISSISSIPPI
          SOUTHERN MIDDLE TENNESSEE
   
   EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 125 PM UNTIL 900
   PM CDT.
   
   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 105
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 30 MILES SOUTH
   SOUTHWEST OF MERIDIAN MISSISSIPPI TO 35 MILES NORTHEAST OF
   ANNISTON ALABAMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).
   
   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 232...
   
   DISCUSSION...LINES/CLUSTERS OF INTENSE THUNDERSTORMS WILL MOVE
   EASTWARD FROM MS INTO AL THIS AFTERNOON AND EARLY EVENING.  AIR MASS
   IN THIS REGION HAS BECOME MODERATELY UNSTABLE...WITH DEEP LAYER
   VERTICAL SHEAR PROFILES FAVORABLE FOR ORGANIZED/SEVERE CONVECTION. 
   DAMAGING WINDS AND LARGE HAIL APPEAR TO BE THE MAIN THREAT.
   
   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 25030.
   
   
   ...HART