SEL5
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 355
   NWS STORM PREDICTION CENTER NORMAN OK
   220 PM EDT MON MAY 31 2004
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          MUCH OF LOWER MICHIGAN
          LAKE MICHIGAN
          LAKE ERIE
          LAKE HURON
   
   EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 220 PM UNTIL 600
   PM EDT.
   
   HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 65
   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 15 MILES NORTHWEST OF PELLSTON
   MICHIGAN TO 35 MILES SOUTH OF DETROIT MICHIGAN.
   
   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 353...WW 354...
   
   DISCUSSION...LOW-TOPPED THUNDERSTORMS/POSSIBLE SUPERCELLS...MAY POSE
   A RISK FOR HAIL THROUGH EARLY THIS EVENING AS OCCLUSION LIFTS NEWD
   ACROSS LWR MI. LARGE SCALE ASCENT WILL BE ENHANCED BY VORT CENTER
   NOW NEAR MKE/ORD.  POTENTIAL FOR A BRIEF TORNADO OR TWO MAY DEVELOP
   OVER NRN/ERN MI IF STORMS REMAIN STRONG UPON CROSSING LOW LEVEL
   FRONT...BUT THREAT APPEARS TOO LIMITED TO WARRANT A TORNADO WATCH.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 55
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 350. MEAN STORM
   MOTION VECTOR 22035.
   
   
   ...CORFIDI