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Severe Thunderstorm Watch 75
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WW0075 Radar
Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
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   SEL5
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 75
   NWS STORM PREDICTION CENTER NORMAN OK
   720 PM CST MON FEB 25 2008
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          PARTS OF SOUTHERN ARKANSAS
          PARTS OF NORTHERN LOUISIANA
          PARTS OF NORTHERN AND CENTRAL MISSISSIPPI
   
   EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 720 PM UNTIL
   200 AM CST.
   
   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 60
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES SOUTH OF
   TEXARKANA ARKANSAS TO 40 MILES NORTHEAST OF GREENWOOD
   MISSISSIPPI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).
   
   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 EXPECTED TO INCREASE RAPIDLY IN NUMBER
   AND INTENSITY ACROSS THE WATCH AREA WITH APPROACH OF STRONG UPPER
   TROUGH. LOW LEVEL MOISTURE RETURNING NEWD ACROSS LOWER MS VALLEY
   WITH INSTABILITY DEVELOPING SUFFICIENT FOR SEVERE THUNDERSTORMS. 
   PRIMARY CONCERN IS LARGE HAIL/DAMAGING WINDS AS FAST MOVING STORMS
   EVOLVE INTO SHORT LINE SEGMENTS/BOWS.
   
   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 450. MEAN STORM
   MOTION VECTOR 25040.
   
   
   ...HALES
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