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001 

WWUS20 KWNS 082141

SEL9

SPC WW 082141

OKZ000-TXZ000-090500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 759

NWS STORM PREDICTION CENTER NORMAN OK

440 PM CDT THU OCT 8 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       PARTS OF SOUTHERN AND EASTERN OKLAHOMA

       PARTS OF NORTHWEST AND NORTH CENTRAL TEXAS



EFFECTIVE THIS THURSDAY AFTERNOON FROM 440 PM UNTIL MIDNIGHT CDT.



TORNADOES...HAIL TO 2.5 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 60 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 55 MILES WEST NORTHWEST OF

ABILENE TEXAS TO 30 MILES NORTH NORTHEAST OF POTEAU 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 758...



DISCUSSION...SHEAR PROFILES ACROSS THE WARM SECTOR ARE FAVORABLE FOR

SUPERCELLS WITH 40-50 KT LLJ. COUPLED WITH MLCAPES AOA 2500 J/KG AND

LOW LCL/S ALONG WITH LARGE HAIL AND DAMAGING WINDS TORNADOES WILL BE

POSSIBLE WITH ANY SUPERCELL THAT DEVELOPS ALONG AND AHEAD OF SLOWLY

SEWD MOVING FRONTAL ZONE.



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

SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

550. MEAN STORM MOTION VECTOR 24035.





...HALES

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