SEL2
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 602
   NWS STORM PREDICTION CENTER NORMAN OK
   1140 AM CDT SUN JUL 11 2004
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          EASTERN IOWA
          NORTHERN AND CENTRAL ILLINOIS
          EXTREME NORTHEASTERN MISSOURI
          LAKE MICHIGAN
   
   EFFECTIVE THIS SUNDAY MORNING AND EVENING FROM 1140 AM UNTIL 600
   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 85 STATUTE MILES
   NORTH AND SOUTH OF A LINE FROM 40 MILES SOUTHWEST OF CEDAR RAPIDS
   IOWA TO 60 MILES NORTHEAST OF CHAMPAIGN 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.
   
   DISCUSSION...COMPLEX OF STORMS IN CENTRAL IA ARE EXPECTED TO
   INTENSIFY AS THEY MOVE SEWD INTO AN INCREASINGLY UNSTABLE AIR MASS.
   DEEP TROPOSPHERIC WINDS AT 30 KT AND ASSOCIATED UPPER LEVEL
   SHORTWAVE TROUGH SHOULD BE SUFFICIENT FOR SMALL BOW ECHOS WITH WIND
   DAMAGE AND ISOLATED HAIL.
   
   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 30030.
   
   
   ...IMY