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WWUS20 KWNS 072230

SEL5

SPC WW 072230

ARZ000-LAZ000-OKZ000-TXZ000-080500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 275

NWS STORM PREDICTION CENTER NORMAN OK

530 PM CDT WED MAY 7 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       WESTERN ARKANSAS

       NORTHWESTERN LOUISIANA

       EASTERN OKLAHOMA

       NORTHEASTERN TEXAS



EFFECTIVE THIS WEDNESDAY AFTERNOON FROM 530 PM UNTIL MIDNIGHT CDT.



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 75 STATUTE

MILES EAST AND WEST OF A LINE FROM 40 MILES NORTHEAST OF TULSA

OKLAHOMA TO 10 MILES EAST OF LUFKIN TEXAS.  FOR A COMPLETE

DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE

(WOUS64 KWNS WOU5).



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 273...WW 274...



DISCUSSION...IMPRESSIVE SPRING STORM SYSTEM WILL CONTINUE TO SPREAD

ACROSS THE SRN PLAINS TONIGHT AND MAINTAIN A LARGE AREA OF SEVERE

THUNDERSTORMS/SUPERCELLS ACROSS WW THROUGH THE EARLY NIGHTTIME

HOURS.  VERY STRONG SHEAR WILL MAINTAIN THREAT OF TORNADOES...ALONG

WITH LARGE HAIL AND DAMAGING WINDS.



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 24035.





...EVANS

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