SEL3
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 793
   NWS STORM PREDICTION CENTER NORMAN OK
   245 PM CDT FRI AUG 27 2004
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          WEST CENTRAL ILLINOIS
          EXTREME SOUTHEAST KANSAS
          MUCH OF MISSOURI
   
   EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 245 PM UNTIL 900
   PM 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 55 STATUTE MILES
   NORTH AND SOUTH OF A LINE FROM 40 MILES NORTH NORTHWEST OF JOPLIN
   MISSOURI TO 45 MILES NORTH NORTHEAST OF SAINT LOUIS MISSOURI.
   
   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 791. WATCH NUMBER 791 WILL NOT BE
   IN EFFECT AFTER 245 PM CDT. CONTINUE...WW 791...
   
   DISCUSSION...SEVERE THUNDERSTORMS CONTINUE OVER CENTRAL MO AND WILL
   CONTINUE TO INTERACT WITH BOUNDARY THAT IS E-W ACROSS STL AREA. 
   MORE ACTIVITY IS EXPECTED TO DEVELOP THIS EVENING OVER PARTS OF SERN
   KS AND MOVE INTO PARTS OF SWRN MO.  AIR MASS IS VERY MOIST AND
   UNSTABLE WITH DEW POINTS IN THE MID 70S AND MLCAPE BETWEEN 2500 AND
   3000 J/KG.
   
   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.
   
   
   ...MCCARTHY