SEL7
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 307
   NWS STORM PREDICTION CENTER NORMAN OK
   150 AM CDT THU MAY 27 2004
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          SOUTHWEST MISSOURI
   
   EFFECTIVE THIS THURSDAY MORNING FROM 150 AM UNTIL 600 AM CDT.
   
   TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
   TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE TORNADO WATCH AREA IS ALONG AND 85 STATUTE MILES EAST AND WEST
   OF A LINE FROM 55 MILES NORTH OF SPRINGFIELD MISSOURI TO 40 MILES
   WEST OF WEST PLAINS MISSOURI.
   
   REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
   TORNADOES AND 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.
   
   OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO
   WATCH NUMBER 304. WATCH NUMBER 304 WILL NOT BE IN EFFECT AFTER 150
   AM CDT. CONTINUE...WW 305...WW 306...
   
   DISCUSSION...ISOLATED SUPERCELL NEAR SURFACE WARM FRONT WILL
   CONTINUE ESEWD WITH THE THREAT FOR AN ISOLATED TORNADO OR
   TWO...LARGE HAIL...AND DAMAGING WINDS FOR THE NEXT COUPLE OF HOURS. 
   ADDITIONAL THUNDERSTORM DEVELOPMENT...WITH THE THREAT FOR LARGE
   HAIL...WILL BE POSSIBLE ALONG AND IMMEDIATELY NE OF THE SURFACE
   FRONT/STORM OUTFLOW WHERE 40-50 KT SWLY LLJ IMPINGES ON THE SURFACE
   BOUNDARIES.
   
   AVIATION...TORNADOES AND 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.
   
   
   ...THOMPSON