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Severe Thunderstorm Watch 177
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WW0177 Radar
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   SEL7
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 177
   NWS STORM PREDICTION CENTER NORMAN OK
   935 AM CDT WED APR 9 2008
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTHWEST OKLAHOMA
          WESTERN NORTH TEXAS
   
   EFFECTIVE THIS WEDNESDAY MORNING AND AFTERNOON FROM 935 AM UNTIL
   400 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 65
   STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES NORTHEAST OF
   CLINTON OKLAHOMA TO 45 MILES WEST SOUTHWEST OF MINERAL WELLS
   TEXAS.  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 176...
   
   DISCUSSION...VEERING LOW LEVEL JET WILL ALLOW FOR MOISTURE RETURN
   NWD WITH STEEP LAPSE RATES AND MODERATE INSTABILITY CONTRIBUTING TO
   A THREAT FOR ELEVATED SEVERE THUNDERSTORMS SPREADING NEWD ACROSS WRN
   N TX AND INTO SW OK.  HAIL...SOME LARGE...ARE EXPECTED 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 21535.
   
   
   ...PETERS/HALES
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