May 24: PDS Tornado Watch #360

THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          CENTRAL AND SOUTHEAST KANSAS
   
   EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 315 PM UNTIL
   1100 PM CDT.
   
   ...THIS IS A PARTICULARLY DANGEROUS SITUATION...
   
   DESTRUCTIVE TORNADOES...LARGE HAIL TO 2.5 INCHES IN DIAMETER...
   THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE
   POSSIBLE IN THESE AREAS.
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 55 STATUTE
   MILES NORTH AND SOUTH OF A LINE FROM 40 MILES NORTH NORTHWEST OF
   MEDICINE LODGE KANSAS TO 20 MILES EAST NORTHEAST OF CHANUTE
   KANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
   WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).
   
   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 354...WW 355...WW
   356...WW 357...WW 358...WW 359...
   
   DISCUSSION...SUPERCELLS OVER NWRN OK ARE EXPECTED TO SPREAD RAPIDLY
   NEWD INTO AREA THIS AFTERNOON WITH ADDITIONAL DEVELOPMENT POSSIBLE E
   OF SURFACE LOW ALONG DRYLINE AND RETREATING WARM FRONT/OUTFLOW
   BOUNDARY.  WARM SECTOR AIR MASS IS QUITE MOIST WITH A DECREASING CAP
   AND MLCAPE OF 3000-4000 J/KG.  WHEN COUPLED WITH RAPIDLY
   STRENGTHENING LOW AND DEEP-LAYER SHEAR...ENVIRONMENT WILL SUPPORT
   THE EVOLUTION OF LONG-LIVED SUPERCELLS CAPABLE OF LARGE HAIL AND
   TORNADOES...SOME OF WHICH COULD BE LONG-TRACKED AND STRONG/VIOLENT.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
   WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
   500. MEAN STORM MOTION VECTOR 24035.