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156 

WWUS20 KWNS 102042

SEL9

SPC WW 102042

ARZ000-OKZ000-110400-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 9

NWS STORM PREDICTION CENTER NORMAN OK

245 PM CST TUE FEB 10 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       NORTHWEST ARKANSAS

       EASTERN OKLAHOMA



EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 245 PM UNTIL

1000 PM CST.



TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 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 25 MILES EAST OF DURANT

OKLAHOMA TO 40 MILES EAST NORTHEAST OF BARTLESVILLE OKLAHOMA.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU9).



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 8...



DISCUSSION...THUNDERSTORMS ARE SLOWLY INCREASING IN WARM ADVECTION

REGIME ACROSS SOUTHEAST OK.  MEANWHILE...LINE OF SUPERCELLS IS

INTENSIFYING OVER CENTRAL OK.  BOTH AREAS OF STORMS WILL SPREAD

ACROSS THE WATCH AREA THIS AFTERNOON AND EVENING.  LOW LEVEL WIND

FIELDS ARE FORECAST TO STRENGTHEN AND BECOME QUITE FAVORABLE FOR

SUPERCELLS AND TORNADOES THIS AFTERNOON AND EVENING.  DAMAGING WINDS

AND LARGE HAIL WILL ALSO BE POSSIBLE.



AVIATION...TORNADOES AND 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 23035.





...HART

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