SEL9
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 649
   NWS STORM PREDICTION CENTER NORMAN OK
   125 AM CDT WED JUL 20 2005
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTHERN IOWA
          SOUTHERN AND WESTERN MINNESOTA
          EASTERN SOUTH DAKOTA
   
   EFFECTIVE THIS WEDNESDAY MORNING FROM 125 AM UNTIL 900 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 70
   STATUTE MILES EITHER SIDE OF A LINE FROM 35 MILES WEST NORTHWEST
   OF BROOKINGS SOUTH DAKOTA TO 45 MILES NORTHEAST OF FORT DODGE
   IOWA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
   WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).
   
   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 647...WW 648...
   
   DISCUSSION...E CNTRL SD MCS EXPECTED TO CONTINUE GENERALLY ESE WITH
   EXIT REGION OF 40+ KT LLJ...AND ALONG FRINGE OF STRONG CAP. 
   ACTIVITY MAY BE ENHANCED IN PART BY UPR LEVEL IMPULSE MOVING ESE ON
   NERN EDGE OF WRN STATES RIDGE.
   
   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 30030.
   
   
   ...CORFIDI