SEL2
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 192
   NWS STORM PREDICTION CENTER NORMAN OK
   1220 PM CDT WED MAY 12 2004
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTHEAST IOWA
          WESTERN UPPER MICHIGAN
          EASTERN MINNESOTA
          NORTHERN AND WESTERN WISCONSIN
          LAKE SUPERIOR
   
   EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 1220 PM UNTIL
   600 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 ALONG AND 90 STATUTE MILES
   EAST AND WEST OF A LINE FROM 25 MILES NORTH OF IRONWOOD MICHIGAN
   TO 65 MILES EAST SOUTHEAST OF MASON CITY IOWA.
   
   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.
   
   DISCUSSION...WEAKLY CAPPED...MODERATELY UNSTABLE AIR MASS AVAILABLE
   AHEAD OF COLD FRONT MOVING EWD ACROSS ERN MN INTO NRN IA.  30 KT
   DEEP LAYER SHEAR SHOULD BE SUFFICIENT FOR MULTICELLULAR STORMS WHICH
   COULD FORM INTO LINE SEGMENTS. THIS WILL ENHANCE DAMAGING WIND
   THREAT ALONG WITH THE LARGE HAIL POTENTIAL GIVEN THE MLCAPES AROUND
   2000 J/KG.
   
   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 23030.
   
   
   ...HALES