

000 

WWUS20 KWNS 060207

SEL9

SPC WW 060207

KSZ000-060900-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 239

NWS STORM PREDICTION CENTER NORMAN OK

905 PM CDT SAT MAY 5 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       MUCH OF KANSAS



EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 905 PM

UNTIL 400 AM 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 APPROXIMATELY ALONG AND 115 STATUTE

MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH OF CONCORDIA

KANSAS TO 20 MILES SOUTH OF MEDICINE LODGE KANSAS.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU9).



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 232...WW 234...WW

235...WW 236...WW 237...WW 238...



DISCUSSION...SUSTAINED SUPERCELLS EXPECTED TO PERSIST

MOIST...HIGHLY-SHEARED ENVIRONMENT OVER THE CNTRL PLNS ON ERN SIDE

OF 70+ KT SSWLY MID LEVEL SPEED MAX.  WHILE ACTIVITY MAY CONGEAL

INTO ONE OR MORE SEMI-LINEAR CLUSTERS...POTENTIAL WILL REMAIN FOR

TORNADOES.  OTHER STORMS MAY FORM LATER TONIGHT NEAR DRY LINE IN WRN

PART OF WW...AND IN WARM ADVECTION ZONE OVER NE KS.



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

550. MEAN STORM MOTION VECTOR 22040.





...CORFIDI

