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000 

WWUS20 KWNS 231916

SEL1

SPC WW 231916

COZ000-KSZ000-NEZ000-240300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 341

NWS STORM PREDICTION CENTER NORMAN OK

215 PM CDT FRI MAY 23 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       PARTS OF EASTERN COLORADO

       LARGE PART OF WESTERN KANSAS

       PARTS OF SOUTHWESTERN NEBRASKA



EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 215 PM UNTIL

1000 PM CDT.



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



DESTRUCTIVE TORNADOES...LARGE HAIL TO 4 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 80 STATUTE

MILES EAST AND WEST OF A LINE FROM 20 MILES EAST NORTHEAST OF

IMPERIAL NEBRASKA TO 40 MILES WEST SOUTHWEST OF MEDICINE LODGE

KANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED

WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).



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 340...



DISCUSSION...VERY UNSTABLE PER 18Z DDC SOUNDING WITH LITTLE

REMAINING CINH IN WARM SECTOR. E/W SURFACE BOUNDARY WILL FOCUS RAPID

DEVELOPMENT OF TORNADIC SUPERCELLS NEAR INTERSECTION OF N/S DRY LINE

IN WRN KS.  WITH VERY STRONG SHEAR POTENTIAL FOR LONG LIVED

SUPERCELLS AND STRONG TORNADOES AS STORMS MOVE RAPIDLY NWD AHEAD OF

APPROACHING UPPER TROUGH/WIND MAX.



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

SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE

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

550. MEAN STORM MOTION VECTOR 19040.





...HALES

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