SEL9
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 609
   NWS STORM PREDICTION CENTER NORMAN OK
   1150 PM CDT SUN JUL 11 2004
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          CENTRAL AND EASTERN NORTH DAKOTA
          NORTH CENTRAL SOUTH DAKOTA
   
   EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 1150 PM UNTIL
   600 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 ALONG AND 65 STATUTE MILES
   EAST AND WEST OF A LINE FROM 65 MILES NORTH OF DEVILS LAKE NORTH
   DAKOTA TO 100 MILES SOUTH SOUTHWEST OF JAMESTOWN NORTH DAKOTA.
   
   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...CONTINUE...WW 607...
   
   DISCUSSION...LINE OF INTENSE CONVECTION OVER WESTERN ND WILL TRACK
   EASTWARD ACROSS THE REMAINDER OF THE STATE OVERNIGHT.  DAMAGING
   WINDS WILL REMAIN POSSIBLE ALONG LEADING EDGE OF STORMS...WITH THE
   THREAT OF LARGE HAIL IN STRONGER CELLS.
   
   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 25035.
   
   
   ...HART