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Tornado Watch 780
Initial RADAR image for Watch 780
List of Counties in Watch 780 (WOU)
Related md2184 for watch 780
Note: The Watch Probability Tables are non-operational.
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Note:  The parallelogram is only an approximation to the watch, the actual watch is defined by the outlines of the counties contained in it.
   SEL0
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 780
   NWS STORM PREDICTION CENTER NORMAN OK
   745 PM CDT MON SEP 12 2005
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          NORTHWEST IOWA
          SOUTHERN MINNESOTA
          SOUTHEAST SOUTH DAKOTA
   
   EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 745 PM UNTIL
   200 AM CDT.
   
   TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
   TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE MILES
   NORTH AND SOUTH OF A LINE FROM 45 MILES WEST SOUTHWEST OF
   BROOKINGS SOUTH DAKOTA TO 30 MILES SOUTHEAST OF MINNEAPOLIS
   MINNESOTA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).
   
   REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
   TORNADOES AND 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.
   
   OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO
   WATCH NUMBER 778. WATCH NUMBER 778 WILL NOT BE IN EFFECT AFTER 745
   PM CDT. CONTINUE...WW 779...
   
   DISCUSSION...WIDESPREAD CONVECTION CONTINUES TO SPREAD ENEWD FROM SE
   SD/SW MN INTO CENTRAL MN ALONG A SURFACE BAROCLINIC ZONE...WHILE A
   SECONDARY BOUNDARY EXISTS NEAR THE IA/MN BORDER.  DESPITE THE
   WIDESPREAD CONVECTION AND SOME DESTRUCTIVE STORM INTERFERENCE...RICH
   MOISTURE AND SUFFICIENTLY STRONG VERTICAL SHEAR WILL MAINTAIN A
   SUPERCELL/TORNADO THREAT FOR THE NEXT FEW HOURS IN MN. 
   OTHERWISE...THE MODERATE INSTABILITY WILL SUPPORT A CONTINUED THREAT
   FOR LARGE HAIL AND DAMAGING WINDS WITH THE MORE INTENSE STORMS INTO
   THE OVERNIGHT HOURS.
   
   AVIATION...TORNADOES AND 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 26030.
   
   
   ...THOMPSON
   
   
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