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000 

WWUS20 KWNS 220651

SEL2

SPC WW 220651

KSZ000-OKZ000-TXZ000-221400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 922

NWS STORM PREDICTION CENTER NORMAN OK

145 AM CDT WED OCT 22 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       CENTRAL AND EASTERN KANSAS

       WESTERN AND CENTRAL OKLAHOMA

       SOUTHEASTERN TEXAS PANHANDLE



EFFECTIVE THIS WEDNESDAY MORNING FROM 145 AM UNTIL 900 AM CDT.



HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80

STATUTE MILES EAST AND WEST OF A LINE FROM 10 MILES SOUTH

SOUTHEAST OF CHICKASHA OKLAHOMA TO 45 MILES NORTH NORTHWEST OF

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

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



OTHER WATCH INFORMATION...CONTINUE...WW 921...



DISCUSSION...LINE OF TSTMS ALONG COLD FRONT SURGING SE ACROSS CNTRL

KS/WRN OK/ERN TX PANHANDLE EXPECTED TO PERSIST THROUGH DAWN.  STORMS

MAY INCREASE IN COVERAGE IN OK LATER THIS MORNING.  STRENGTH OF

BACKGROUND WIND FIELD...INCREASING LARGE SCALE ASCENT ASSOCIATED

WITH AMPLIFYING UPR TROUGH...DEEPENING SFC LOW OVER CNTRL/NE

KS...AND SIZABLE TEMP-DEW POINT SPREADS ABOVE THE SFC TOGETHER

SUGGEST POTENTIAL FOR DMGG WIND GUSTS...DESPITE LIMITED CAPE.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400. MEAN STORM

MOTION VECTOR 28040.





...CORFIDI

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