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000 

WWUS20 KWNS 060034

SEL6

SPC WW 060034

ARZ000-KSZ000-MOZ000-OKZ000-060600-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 926

NWS STORM PREDICTION CENTER NORMAN OK

635 PM CST WED NOV 5 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHWEST ARKANSAS

       EXTREME SOUTHEAST KANSAS

       SOUTHWEST MISSOURI

       EASTERN OKLAHOMA



EFFECTIVE THIS WEDNESDAY NIGHT FROM 635 PM UNTIL MIDNIGHT CST.



HAIL TO 2 INCHES 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 50

STATUTE MILES EAST AND WEST OF A LINE FROM 70 MILES NORTH

NORTHEAST OF JOPLIN MISSOURI TO 30 MILES SOUTHEAST OF MCALESTER

OKLAHOMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).



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 924...WW 925...



DISCUSSION...CLUSTERS OF SEVERE/SUPERCELL STORMS WILL CONTINUE TO

TRACK EASTWARD TOWARD NWRN ARKANSAS/SWRN MISSOURI IN THE NEXT FEW

HOURS.  COMBINATION OF DIURNAL COOLING AND SLIGHTLY WEAKER LOW LEVEL

MOISTURE WILL TEND TO OFFSET INCREASE IN LOW LEVEL VERTICAL SHEAR.

THIS MAY MAINTAIN A RISK OF DAMAGING WINDS AND HAIL...BUT LESSEN

RISK OF LOW LEVEL MESOCYCLOGENESIS.



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM

MOTION VECTOR 24035.





...HART

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