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   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 330
   NWS STORM PREDICTION CENTER NORMAN OK
   1050 AM CDT SUN MAY 30 2004
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          NORTHERN AND WESTERN ARKANSAS
          EXTREME EASTERN KANSAS
          A LARGE PART OF MISSOURI
          EASTERN OKLAHOMA
   
   EFFECTIVE THIS SUNDAY MORNING AND EVENING FROM 1050 AM UNTIL 700
   PM CDT.
   
   ...THIS IS A PARTICULARLY DANGEROUS SITUATION...
   
   DESTRUCTIVE TORNADOES...LARGE HAIL TO 3 INCHES IN DIAMETER...
   THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE
   POSSIBLE IN THESE AREAS.
   
   THE TORNADO WATCH AREA IS ALONG AND 95 STATUTE MILES EAST AND WEST
   OF A LINE FROM 35 MILES NORTH NORTHEAST OF KIRKSVILLE MISSOURI TO
   40 MILES SOUTH OF FORT SMITH ARKANSAS.
   
   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...CONTINUE...WW 329...
   
   DISCUSSION...SUPERCELLS EXPECTED TO DEVELOP IN THE NEXT 1-2 HOURS
   ALONG COLD FRONT/DRY LINE BOUNDARY IN EXTREME ERN KS/WRN MO...WITH
   SWD DEVELOPMENT ALONG THE BOUNDARIES INTO ERN OK.  OTHER STORMS MAY
   FORM INVOF RETREATING W/E OUTFLOW BOUNDARY IN NRN MO.  COMBINATION
   OF SURFACE HEATING...WEAK MID LEVEL COLD ADVECTION AND LARGE SCALE
   ASCENT ASSOCIATED WITH LEADING EDGE OF WRN KS UPPER IMPULSE LIKELY
   TO ALLOW CAP TO BE BROKEN WHERE LOW LEVEL UPLIFT IS STRONGEST. 
   WHILE STORMS MAY TEND TO EVOLVE INTO NNE/SSW ORIENTED BANDS...
   STRENGTH OF SHEAR AND INSTABILITY SUGGEST GOOD CHANCE FOR LONG-LIVED
   SUPERCELLS WITH TORNADOES/LARGE HAIL AND HIGH WIND.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
   GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600.
   MEAN STORM MOTION VECTOR 25040.
   
   
   ...CORFIDI