SEL3
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 323
   NWS STORM PREDICTION CENTER NORMAN OK
   305 PM CDT SAT MAY 29 2004
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          SOUTHWEST IOWA
          NORTH CENTRAL AND NORTHEAST KANSAS
          FAR NORTHWEST MISSOURI
          EAST AND CENTRAL NEBRASKA
   
   EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 305 PM UNTIL
   1000 PM CDT.
   
   ...THIS IS A PARTICULARLY DANGEROUS SITUATION...
   
   DESTRUCTIVE TORNADOES...LARGE HAIL TO 4 INCHES IN DIAMETER...
   THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE
   POSSIBLE IN THESE AREAS.
   
   THE TORNADO WATCH AREA IS ALONG AND 120 STATUTE MILES EAST AND
   WEST OF A LINE FROM 20 MILES NORTHEAST OF NORFOLK NEBRASKA TO 15
   MILES SOUTHWEST OF SALINA KANSAS.
   
   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 321...WW 322...
   
   DISCUSSION...WARM SECTOR IS BECOMING EXTREMELY UNSTABLE AND WEAKLY
   CAPPED ACROSS REGION.  SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP
   RAPIDLY DURING THE NEXT HOUR OR SO NEAR THE DRY LINE AND TRIPLE
   POINT OVER N-CENTRAL KS INTO CENTRAL NEB. OTHER ISOLATED DEVELOPMENT
   MAY OCCUR WITHIN WARM SECTOR AS LARGE SCALE ASCENT INCREASES IN
   ADVANCE OF WEAK MID LEVEL IMPULSE SHIFTING NEWD OUT OF KS.
   COMBINATION OF SHEAR AND INSTABILITY WILL REMAIN FAVORABLE FOR
   TORNADIC SUPERCELLS...WITH THE POTENTIAL FOR A FEW STRONG OR VIOLENT
   TORNADOES.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE WIND
   GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
   MEAN STORM MOTION VECTOR 24030.
   
   
   ...EVANS