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   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 290
   NWS STORM PREDICTION CENTER NORMAN OK
   125 PM CDT THU MAY 19 2005
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTHEAST IOWA
          NORTHERN ILLINOIS
          EXTREME NORTHEAST MISSOURI
          EXTREME SOUTHERN WISCONSIN
          LAKE MICHIGAN
   
   EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 125 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 APPROXIMATELY ALONG AND 65
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 55 MILES WEST
   NORTHWEST OF BURLINGTON IOWA TO 60 MILES NORTHEAST OF MARSEILLES
   ILLINOIS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).
   
   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 288...WW 289...
   
   DISCUSSION...ISOLATED STRONG/SEVERE THUNDERSTORMS ARE EXPECTED TO
   DEVELOP IN THE NEXT FEW HOURS FROM NORTHEAST IA INTO EXTREME
   SOUTHERN WI...MOVING ACROSS NORTHERN IL.  SUFFICIENT CAPE AND
   VERTICAL SHEAR SUGGEST THE RISK OF SUPERCELL THUNDERSTORMS CAPABLE
   OF LARGE HAIL AND DAMAGING WINDS.
   
   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 28030.
   
   
   ...HART