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000 

WWUS20 KWNS 051458

SEL2

SPC WW 051458

KSZ000-NEZ000-060300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 232

NWS STORM PREDICTION CENTER NORMAN OK

955 AM CDT SAT MAY 5 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       PARTS OF WESTERN AND CENTRAL KANSAS

       PARTS OF SOUTHWEST AND CENTRAL NEBRASKA



EFFECTIVE THIS SATURDAY MORNING AND EVENING FROM 955 AM UNTIL

1000 PM CDT.



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



DESTRUCTIVE TORNADOES...LARGE HAIL TO 4 INCHES IN DIAMETER...

THUNDERSTORM WIND GUSTS TO 90 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 45 MILES NORTH NORTHWEST OF

BROKEN BOW NEBRASKA TO 55 MILES SOUTHWEST OF RUSSELL KANSAS.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU2).



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.



DISCUSSION...VERY POTENT TORNADIC SUPERCELL PATTERN IN PLACE ACROSS

WATCH AREA AS AIR MASS IS EXTREMELY UNSTABLE WITH VERY FAVORABLE

SHEAR PROFILES.  WITH LITTLE INHIBITION REMAINING ALONG E OF DRY

LINE...STORMS WILL RAPIDLY BECOME SEVERE BY EARLY THIS AFTERNOON WRN

KS INTO SWRN NEB.  TORNADIC SUPERCELLS WILL DEVELOP WITH POTENTIAL

FOR LONG TRACK/VIOLENT TORNADOS.  AS DRY LINE REMAINS WRN KS THRU

THE AFTERNOON...ADDITIONAL DEVELOPMENT OF TORNADIC SUPERCELLS ARE

LIKELY  OFF THE DRY LINE THRU THE EVENING HOURS.



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

SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 80 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

600. MEAN STORM MOTION VECTOR 22040.





...HALES

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