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   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 230
   NWS STORM PREDICTION CENTER NORMAN OK
   110 AM CDT FRI APR 21 2006
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          CENTRAL TEXAS
   
   EFFECTIVE THIS FRIDAY MORNING FROM 110 AM UNTIL 600 AM CDT.
   
   HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 60
   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
   NORTHEAST OF AUSTIN TEXAS TO 55 MILES SOUTH SOUTHWEST OF HONDO
   TEXAS. 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.
   
   OTHER WATCH INFORMATION...CONTINUE...WW 229...
   
   DISCUSSION...THUNDERSTORMS ARE INCREASING IN COVERAGE/INTENSITY IN A
   BROKEN NE-SW BAND OVER THE HILL COUNTRY.  THIS CONVECTIVE
   DEVELOPMENT IS BEING AIDED BY WARM ADVECTION N OF AN OLD OUTFLOW
   BOUNDARY...AND ASCENT DOWNSTREAM FROM A MID LEVEL TROUGH MOVING OVER
   TX.  EXPECT THE STORMS TO PERSIST THROUGH THE MORNING...WITH LARGE
   HAIL THE PRIMARY SEVERE THREAT GIVEN THAT MUCH OF THE CONVECTION
   WILL REMAIN SLIGHTLY ELEVATED...THOUGH ISOLATED DAMAGING GUSTS COULD
   ALSO OCCUR.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 50
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 29025.
   
   
   ...THOMPSON