

459 

WWUS20 KWNS 152301

SEL6

SPC WW 152301

KSZ000-160500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 426

NWS STORM PREDICTION CENTER NORMAN OK

555 PM CDT MON JUN 15 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL AND EASTERN KANSAS



EFFECTIVE THIS MONDAY AFTERNOON FROM 555 PM UNTIL MIDNIGHT CDT.



TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 105 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 45 MILES NORTHWEST OF

HUTCHINSON KANSAS TO 45 MILES SOUTH SOUTHEAST OF TOPEKA KANSAS.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU6).



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 420...WW 421...WW

423...WW 424...WW 425...



DISCUSSION...STORMS ARE DEVELOPING RAPIDLY EAST AND NORTHEAST OF

ICT...AND ADDITIONAL SEVERE STORMS OVER SWRN KS ARE EXPECTED TO

SPREAD EWD/NEWD ACROSS CENTRAL KS DURING THE NEXT SEVERAL HOURS.

THE ENVIRONMENT ACROSS THE WW AREA IS VERY UNSTABLE WITH MLCAPE OF

3000-4000 J/KG...AND DEEP LAYER SHEAR OF 40-50 KT WILL PROMOTE

SUPERCELL STORMS.  IN ADDITION...THE LOW LEVEL JET IS EXPECTED TO

STRENGTHEN THIS EVENING WITH A SUBSEQUENT INCREASE IN LOW LEVEL

SHEAR/SRH INDICATING THREAT FOR A FEW TORNADOES...AS WELL AS VERY

LARGE HAIL AND DAMAGING WIND GUSTS.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

550. MEAN STORM MOTION VECTOR 24035.





...WEISS

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