SEL3
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 613
   NWS STORM PREDICTION CENTER NORMAN OK
   620 PM CDT MON JUL 12 2004
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          WESTERN IOWA
          SOUTHWEST MINNESOTA
          NORTHEAST AND CENTRAL NEBRASKA
          SOUTHEAST SOUTH DAKOTA
   
   EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 620 PM UNTIL
   100 AM CDT.
   
   TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
   TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE TORNADO WATCH AREA IS ALONG AND 80 STATUTE MILES EAST AND WEST
   OF A LINE FROM 30 MILES NORTHEAST OF SIOUX FALLS SOUTH DAKOTA TO
   10 MILES SOUTHWEST OF COLUMBUS NEBRASKA.
   
   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 612. WATCH NUMBER 612 WILL NOT BE IN EFFECT AFTER 620
   PM CDT. 
   
   DISCUSSION...SUPERCELL STORMS CONTINUE TO INTENSIFY OVER NORTHERN
   NEB AND SOUTHEAST SD.  THESE STORMS...AS WELL AS NEW DEVELOPMENT
   INTO CENTRAL NEB...WILL TRACK SOUTHEASTWARD THROUGH THE EVENING
   HOURS. VERY LARGE HAIL AND DAMAGING WINDS WILL BE POSSIBLE...ALONG
   WITH A RISK OF ISOLATED TORNADOES.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
   GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
   MEAN STORM MOTION VECTOR 30030.
   
   
   ...HART