SEL2
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 262
   NWS STORM PREDICTION CENTER NORMAN OK
   205 PM CDT SUN MAY 23 2004
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          EASTERN IOWA
          NORTHERN ILLINOIS
          SOUTHERN WISCONSIN
   
   EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 205 PM UNTIL 1000
   PM CDT.
   
   TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
   TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE TORNADO WATCH AREA IS ALONG AND 115 STATUTE MILES EAST AND
   WEST OF A LINE FROM 25 MILES NORTHWEST OF MADISON WISCONSIN TO 35
   MILES SOUTHEAST OF MOLINE ILLINOIS.
   
   REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
   TORNADOES AND 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.
   
   OTHER WATCH INFORMATION...CONTINUE...WW 259...WW 260...WW 261...
   
   DISCUSSION...STRONG HEATING IS OCCURRING AHEAD OF SURFACE LOW/COLD
   FRONT OVER EASTERN IA. THUNDERSTORM DEVELOPMENT IS EXPECTED IN THIS
   REGION DURING THE NEXT 1-2 HOURS...WITH STORMS SPREADING EASTWARD
   ACROSS NORTHERN IL/SOUTHERN WI THROUGH THE EVENING.  VERTICAL SHEAR
   PROFILES ARE FAVORABLE FOR SUPERCELLS CAPABLE OF LARGE HAIL AND
   TORNADOES.  EVOLUTION INTO BOW ECHOES IS ALSO POSSIBLE BY EVENING.
   
   AVIATION...TORNADOES AND 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 24035.
   
   
   ...HART