SEL6
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 516
   NWS STORM PREDICTION CENTER NORMAN OK
   640 PM CDT WED JUN 23 2004
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTHERN LOWER MICHIGAN
          NORTHEASTERN WISCONSIN
          LAKE MICHIGAN
   
   EFFECTIVE THIS WEDNESDAY NIGHT FROM 640 PM UNTIL MIDNIGHT CDT.
   
   HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 60 STATUTE MILES
   NORTH AND SOUTH OF A LINE FROM 45 MILES NORTHWEST OF OSHKOSH
   WISCONSIN TO 5 MILES SOUTH SOUTHEAST OF HOUGHTON LAKE 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 511...WW 512...WW 513...WW
   514...WW 515...
   
   DISCUSSION...INTENSE BOW ECHO HAS DEVELOPED OVER WRN WI AHEAD OF
   90-100 KT 500 MB WIND MAX MOVING ACROSS UPR MS VALLEY. WITH
   INSTABILITY AND SHEAR PROFILES IN PLACE ACROSS ERN WI INTO SRN
   MI...SIGNIFICANT WIND DAMAGE THREAT WILL CONTINUE E/ESEWD ACROSS LM
   02-03Z.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 27045.
   
   
   ...HALES