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Severe Thunderstorm Watch 312
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WW0312 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
Moderate Low

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL2
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 312
   NWS STORM PREDICTION CENTER NORMAN OK
   520 PM CDT TUE MAY 26 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SMALL PART OF SOUTHERN OKLAHOMA
          MUCH OF NORTH CENTRAL TEXAS
   
   EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 520 PM UNTIL
   1100 PM CDT.
   
   HAIL TO 2.5 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 80
   STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES EAST
   NORTHEAST OF DURANT OKLAHOMA TO 45 MILES EAST SOUTHEAST OF
   BROWNWOOD TEXAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).
   
   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.
   
   DISCUSSION...THUNDERSTORMS WILL INCREASE IN NUMBER AND INTENSITY
   ALONG SURFACE BOUNDARIES IN A VERY UNSTABLE AIR MASS.  WITH MLCAPES
   TO 3000 J/KG LARGE HAIL AND DAMAGING DOWNBURST WINDS WILL BE
   ASSOCIATED WITH STRONGEST UPDRAFTS.  STORMS WILL MOVE SLOWLY AND
   PROPAGATE  E AND SE.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 28015.
   
   
   ...HALES
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