SEL8
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 88
   NWS STORM PREDICTION CENTER NORMAN OK
   845 PM CDT SUN APR 18 2004
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          UPPER MICHIGAN
          NORTHEAST WISCONSIN
          LAKE MICHIGAN
          LAKE SUPERIOR
   
   EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 845 PM UNTIL
   100 AM 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 ALONG AND 75 STATUTE MILES
   EAST AND WEST OF A LINE FROM 35 MILES WEST NORTHWEST OF SAULT STE
   MARIE MICHIGAN TO 50 MILES SOUTH OF IRON MOUNTAIN 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...THIS SEVERE THUNDERSTORM WATCH REPLACES
   TORNADO WATCH NUMBER 82. WATCH NUMBER 82 WILL NOT BE IN EFFECT
   AFTER 845 PM CDT. CONTINUE...WW 85...WW 86...WW 87...
   
   DISCUSSION...SEVERE BOW ECHO ACROSS WRN U.P. OF MICHIGAN WILL
   CONTINUE RAPIDLY EWD ACROSS REMAINDER OF UPPER MICHIGAN WHERE E/W
   WARM FRONT IS LOCATED. SUFFICIENT INSTABILITY ALONG WITH THE VERY
   STRONG VEERING SHEAR PROFILES TO MAINTAIN A DAMAGING WIND THREAT AS
   STORMS MOVE RAPIDLY EWD.
   
   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 26050.
   
   
   ...HALES