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Severe Thunderstorm Watch 721
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WW0721 Radar
Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
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   SEL1
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 721
   NWS STORM PREDICTION CENTER NORMAN OK
   350 PM CDT MON AUG 14 2006
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          PARTS OF NORTHERN ARKANSAS
          PARTS OF SOUTHERN ILLINOIS
          SMALL PART OF SOUTHWEST INDIANA
          PARTS OF WESTERN KENTUCKY
          SOUTHEAST MISSOURI
          SMALL PART OF NORTHWEST TENNESSEE
   
   EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 350 PM UNTIL
   1000 PM CDT.
   
   HAIL TO 1.5 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 65
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 75 MILES EAST
   SOUTHEAST OF MOUNT VERNON ILLINOIS TO 35 MILES NORTH OF
   RUSSELLVILLE ARKANSAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE
   THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).
   
   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 720...
   
   DISCUSSION...THUNDERSTORMS ARE INCREASING IN NUMBER AND INTENSITY
   AHEAD OF COLD FRONT. WITH VERY UNSTABLE AIR AND 20-30 KT OF SHEAR
   WIND DAMAGE WILL BE PRIMARY THREAT AS STORMS CONTINUE E/SE.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600. MEAN STORM
   MOTION VECTOR 27025.
   
   
   ...HALES
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