Tornado Watch # 40

000 
WWUS20 KWNS 282341 
SEL0 
SPC WW 282341 
KSZ000-290500- 


URGENT - IMMEDIATE BROADCAST REQUESTED 
TORNADO WATCH NUMBER 40 
NWS STORM PREDICTION CENTER NORMAN OK 
545 PM CST TUE FEB 28 2012 


THE NWS STORM PREDICTION CENTER HAS ISSUED A 
TORNADO WATCH FOR PORTIONS OF 


CENTRAL KANSAS 


EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 545 PM UNTIL 
1100 PM CST. 


TORNADOES...HAIL TO 1.5 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 EAST AND WEST OF A LINE FROM 25 MILES NORTH NORTHWEST OF 
SALINA KANSAS TO 45 MILES SOUTH OF WICHITA 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 39... 


DISCUSSION...CONVECTION HAS INCREASED ALONG THE DRYLINE...AND A FEW 
SUSTAINED STORMS MAY EMERGE IN THE NEXT 1-2 HOURS WITHIN THE WEAK 
INSTABILITY/STRONG VERTICAL SHEAR ENVIRONMENT. THE EXTREMELY STRONG 
DEEP-LAYER SHEAR WILL TEND TO DELAY STORM MATURATION...BUT A 
SUFFICIENTLY MOIST AND STRONG LOW-LEVEL SHEAR ENVIRONMENT WILL FAVOR 
SOME RISK FOR A TORNADO OR TWO WITH ANY PERSISTENT SUPERCELLS. 
OTHERWISE...ISOLATED LARGE HAIL AND DAMAGING GUSTS WILL BE POSSIBLE. 
LATER TONIGHT...THERE WILL ALSO BE SOME RISK FOR ADDITIONAL STORM 
DEVELOPMENT AS THE COLD FRONT OVERTAKES THE DRYLINE ACROSS 
CENTRAL/ERN KS. 


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL 
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE 
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 
400. MEAN STORM MOTION VECTOR 24050. 




...THOMPSON