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WWUS20 KWNS 072057

SEL1

SPC WW 072057

OKZ000-TXZ000-080500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 361

NWS STORM PREDICTION CENTER NORMAN OK

400 PM CDT THU JUN 7 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       MUCH OF CENTRAL AND EASTERN OKLAHOMA

       PARTS OF NORTHWEST TEXAS



EFFECTIVE THIS THURSDAY AFTERNOON FROM 400 PM UNTIL MIDNIGHT CDT.



TORNADOES...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 65 MILES SOUTH SOUTHEAST OF

WICHITA FALLS TEXAS TO 15 MILES NORTH NORTHWEST OF BARTLESVILLE

OKLAHOMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).



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 357...WW 358...WW

359...WW 360...



DISCUSSION...WITH VERY UNSTABLE AND A WEAKLY CAPPED AIR MASS IN

PLACE ALONG AND E OF DRY LINE ACROSS CENTRAL OK...CONDITIONS ARE

FAVORABLE FOR RAPID DEVELOPMENT OF SUPERCELL THUNDERSTORMS. STORMS

ARE EXPECTED TO INITIATE VICINITY DRY LINE NEXT FEW HOURS AND

DEVELOP EWD.  VERY LARGE HAIL AND TORNADOES WILL BE LIKELY WITH ANY

SUPERCELL THAT CAN FORM.



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

600. MEAN STORM MOTION VECTOR 24025.





...HALES

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