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   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 561
   NWS STORM PREDICTION CENTER NORMAN OK
   945 AM CDT MON JUL 5 2004
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTHERN ILLINOIS
          SOUTHWEST INDIANA
          NORTHWEST KENTUCKY
   
   EFFECTIVE THIS MONDAY MORNING AND AFTERNOON FROM 945 AM UNTIL 200
   PM CDT.
   
   HAIL TO 1.5 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 70 STATUTE MILES
   EAST AND WEST OF A LINE FROM 70 MILES NORTH NORTHEAST OF
   EVANSVILLE INDIANA TO 45 MILES EAST SOUTHEAST OF CARBONDALE
   ILLINOIS.
   
   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 560...
   
   DISCUSSION...SEVERE MCS/BOW ECHO MOVING EWD ACROSS SRN IL. WITH
   STRONG HEATING AND DESTABILIZATION ACROSS WATCH AREA...EXPECTED
   POTENTIAL FOR DAMAGING WINDS TO PERSIST INTO EARLY AFTERNOON AS
   STORMS CONTINUE EWD.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 27035.
   
   
   ...HALES