SEL6
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 766
   NWS STORM PREDICTION CENTER NORMAN OK
   835 PM CDT SAT SEP 3 2005
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTHEAST IOWA
          SOUTHERN AND CENTRAL MINNESOTA
          WESTERN WISCONSIN
   
   EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 835 PM UNTIL
   400 AM 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 45 MILES WEST
   SOUTHWEST OF ALEXANDRIA MINNESOTA TO 25 MILES EAST SOUTHEAST OF LA
   CROSSE WISCONSIN.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).
   
   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...THIS SEVERE THUNDERSTORM WATCH REPLACES
   SEVERE THUNDERSTORM WATCH NUMBER 764...SEVERE THUNDERSTORM WATCH
   NUMBER 765. WATCH NUMBER 764 765 WILL NOT BE IN EFFECT AFTER 835
   PM CDT. 
   
   DISCUSSION...NEARLY STATIONARY FRONT ORIENTED WNW/ESE ACROSS SRN MN
   EXPECTED TO BE FOCUS FOR CONTINUED STRONG TSTM DEVELOPMENT THROUGH
   EARLY SUNDAY AS SSWLY LLJ STRENGTHENS. MODERATE TO STRONG
   INSTABILITY PRESENT IN INFLOW REGION ACROSS THE ERN
   DAKOTAS...COUPLED WITH MODERATE BUT CONTINUOUSLY-VEERING VERTICAL
   WIND PROFILES...SUGGEST GOOD CHANCE FOR SUPERCELLS WITH LARGE
   HAIL/WIND.  MOST OF THE ACTIVITY SHOULD REMAIN SLIGHTLY ELEVATED
   AND...GIVEN LINEAR FORCING OF FRONT/ EXISTING STORM OUTFLOW...MAY
   EVOLVE INTO ONE OR MORE CLUSTERS WITH EMBEDDED BOWING SEGMENTS.
   
   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 29035.
   
   
   ...CORFIDI