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Severe Thunderstorm Watch 289
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WW0289 Radar
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   SEL9
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 289
   NWS STORM PREDICTION CENTER NORMAN OK
   330 PM CDT FRI MAY 9 2008
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTH CENTRAL TEXAS
   
   EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 330 PM UNTIL
   1000 PM CDT.
   
   HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 30 MILES WEST
   SOUTHWEST OF JUNCTION TEXAS TO 60 MILES SOUTHEAST OF AUSTIN
   TEXAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
   WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).
   
   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 287...WW 288...
   
   DISCUSSION...TSTMS ARE EXPECTED TO DEVELOP ALONG A STALLED AND
   WEAKLY CONVERGENT FRONTAL ZONE...AND NEAR FRONT/DRYLINE
   INTERSECTION...FROM THE ESCARPMENT EWD ACROSS SCNTRL TX NEXT FEW
   HOURS. THIS ACTIVITY WILL TAP VERY UNSTABLE AIR MASS ACROSS THE
   REGION AND...COUPLED WITH 45-55KT EFFECTIVE BULK SHEAR...POSE A
   THREAT OF VERY LARGE HAIL AND HIGH WINDS. STORMS MAY CONGEAL INTO A
   SMALL MCS LATER THIS EVENING WITH WIND/HAIL POTENTIAL SPREADING
   EWD/SEWD TOWARD SE TX COASTAL PLAIN.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 28020.
   
   
   ...CARBIN
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