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000 

WWUS20 KWNS 221859

SEL5

SPC WW 221859

KSZ000-NEZ000-230300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 335

NWS STORM PREDICTION CENTER NORMAN OK

150 PM CDT THU MAY 22 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       WESTERN KANSAS KANSAS

       EXTREME SOUTHWESTERN NEBRASKA



EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 150 PM UNTIL

1000 PM 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 60 STATUTE

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

MCCOOK NEBRASKA TO 55 MILES SOUTH SOUTHEAST OF DODGE CITY KANSAS.

 FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU5).



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 334...



DISCUSSION...STORMS ARE EXPECTED TO DEVELOP ALONG AND EAST OF THE

DRYLINE SHORTLY...AS LARGE SCALE ASCENT INCREASES AHEAD OF SHORTWAVE

TROUGH MOVING INTO SERN CO. MODERATE TO STRONG INSTABILITY AND

EFFECTIVE SHEAR AT 55-65 KT WILL LIKELY RESULT IN INTENSE SUPERCELLS

THROUGH THE AFTERNOON AND INTO THE EVENING HOURS. INSTABILITY AND

STRONG SHEAR WILL BE FAVORABLE FOR STORMS WITH HAIL UP TO 3 INCHES

IN DIAMETER. ALSO...EXTREMELY STRONG LOW LEVEL SHEAR...ESPECIALLY

NEAR THE WARM FRONT...THAT STRETCHED FROM GLD TO HLC AT 18Z...SHOULD

SUPPORT TORNADOES...SOME VERY DAMAGING AND LARGE.



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 20035.





...IMY

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