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Severe Thunderstorm Watch 180
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WW0180 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
Moderate Moderate

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL0
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 180
   NWS STORM PREDICTION CENTER NORMAN OK
   445 PM CDT FRI APR 24 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTHWEST THROUGH NORTHEAST IOWA
          SOUTHEAST MINNESOTA
          CENTRAL INTO NORTHERN WISCONSIN
   
   EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 445 PM UNTIL
   1100 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 60
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 30 MILES NORTH
   NORTHWEST OF SHENANDOAH IOWA TO 15 MILES SOUTHEAST OF RHINELANDER
   WISCONSIN.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).
   
   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...SEVERE THUNDERSTORMS WILL CONTINUE TO INCREASE ALONG
   AND AHEAD OF STRONG SURFACE COLD FRONT PUSHING SEWD ACROSS WW
   THROUGH THE EVENING.  VERY WARM SURFACE TEMPERATURES AND INCREASING
   ASCENT WILL WEAKEN CAP AND STEEPEN LAPSE RATES SUPPORTING THREAT OF
   HAIL WITH THE STRONGER STORMS.  IN ADDITION...SHEAR WILL BE
   SUFFICIENT FOR SUPERCELLS.  ISOLATED DAMAGING WINDS AND POSSIBLY A
   TORNADO ARE ALSO EXPECTED.
   
   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 25030.
   
   
   ...EVANS
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