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Severe Thunderstorm Watch 693
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WW0693 Radar
Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
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   SEL3
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 693
   NWS STORM PREDICTION CENTER NORMAN OK
   1000 AM CDT WED JUL 16 2008
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          CENTRAL MINNESOTA
          CENTRAL WISCONSIN
          LAKE MICHIGAN
   
   EFFECTIVE THIS WEDNESDAY MORNING AND EVENING FROM 1000 AM UNTIL
   600 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 50
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES WEST OF
   SAINT CLOUD MINNESOTA TO 30 MILES SOUTH SOUTHEAST OF GREEN BAY
   WISCONSIN.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).
   
   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...SEVERAL CLUSTERS OF ELEVATED THUNDERSTORMS CONTINUE TO
   INCREASE AT MID MORNING OVER CENTRAL MN/W-CENTRAL WI.  INITIAL
   DEVELOPMENT WILL LIKELY REMAIN ELEVATED UNTIL EARLY THIS
   AFTERNOON...BUT HEATING AND ABUNDANT LOW LEVEL MOISTURE ALONG AND
   SOUTH OF WNW-ESE ORIENTED SURFACE FRONT ACROSS WW SHOULD SUPPORT
   VERY UNSTABLE CONDITIONS LATER TODAY.  ISOLATED LARGE HAIL AND
   DAMAGING WINDS WILL ACCOMPANY STRONGER CORES...WITH SEVERE THREAT
   LIKELY INCREASING THROUGH THE DAY.  COMPLEX/S OF STORMS COULD EVOLVE
   INTO A BOWING MCS AND TRACK MORE SWD INTO STRONG INSTABILITY AS THE
   AFTERNOON WEARS ON.
   
   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 26025.
   
   
   ...EVANS
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