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Severe Thunderstorm Watch 664
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WW0664 Radar
Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
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   SEL4
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 664
   NWS STORM PREDICTION CENTER NORMAN OK
   325 PM CDT MON JUL 7 2008
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          FAR NORTHWESTERN MINNESOTA
          CENTRAL AND EASTERN NORTH DAKOTA
   
   EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 325 PM UNTIL 900
   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 95
   STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES NORTHEAST OF
   DEVILS LAKE NORTH DAKOTA TO 70 MILES SOUTH OF JAMESTOWN NORTH
   DAKOTA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
   WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).
   
   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 663...
   
   DISCUSSION...SHORTWAVE TROUGH DRIVING ESEWD ACROSS ND WILL CONTINUE
   INCREASING SEVERE THUNDERSTORM THREAT THIS EVENING AS AIR MASS
   BECOMES MODERATELY UNSTABLE.  SHEAR WILL SUPPORT
   SUPERCELLS...INCREASING THE THREATS OF LARGE HAIL AND DAMAGING
   WINDS.
   
   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 28025.
   
   
   ...EVANS
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Page last modified: July 08, 2008
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