

000 

WWUS20 KWNS 240152

SEL4

SPC WW 240152

KSZ000-NEZ000-240900-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 344

NWS STORM PREDICTION CENTER NORMAN OK

850 PM CDT FRI MAY 23 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       MUCH OF CENTRAL AND WESTERN KANSAS

       SOUTH CENTRAL NEBRASKA



EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 850 PM

UNTIL 400 AM CDT.



...THIS IS A PARTICULARLY DANGEROUS SITUATION...



DESTRUCTIVE TORNADOES...LARGE 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 100 STATUTE

MILES EAST AND WEST OF A LINE FROM 70 MILES EAST NORTHEAST OF

MCCOOK NEBRASKA TO 20 MILES SOUTH OF MEDICINE LODGE KANSAS.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU4).



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...THIS TORNADO WATCH REPLACES TORNADO

WATCH NUMBER 341. WATCH NUMBER 341 WILL NOT BE IN EFFECT AFTER

850 PM CDT. CONTINUE...WW 342...WW 343...



DISCUSSION...ISOLD SUPERCELLS EXPECTED TO PERSIST OVER CNTRL KS THIS

EVENING AS LLJ STRENGTHENS IN RESPONSE TO NIGHTFALL AND PASSING

SHORTWAVE IMPULSE NOW OVER ERN CO.  COUPLED WITH BACKED...VERY

MOIST...NEAR-SFC FLOW...AND SLIGHT TEMPORAL VEERING OF MID-LVL FLOW

WITH PASSAGE OF SHORTWAVE...SETUP COULD SUPPORT ADDITIONAL STRONG

TORNADOES/VERY LARGE HAIL.  EMBEDDED SUPERCELLS ALONG WRN KS SQLN

/FORMING ALONG MERGING COLD FRONT-DRY LINE/ MAY ALSO YIELD ISOLD

TORNADOES...IN ADDITION TO SVR DOWNBURSTS/HAIL.



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.





...CORFIDI

