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WWUS20 KWNS 030222

SEL7

SPC WW 030222

ARZ000-OKZ000-TXZ000-031000-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 87

NWS STORM PREDICTION CENTER NORMAN OK

825 PM CST SUN MAR 2 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       WESTERN ARKANSAS

       EASTERN OKLAHOMA

       NORTHEAST TEXAS



EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 825 PM UNTIL

400 AM 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 65 STATUTE

MILES EAST AND WEST OF A LINE FROM 25 MILES EAST NORTHEAST OF

MUSKOGEE OKLAHOMA TO 65 MILES SOUTH OF PARIS TEXAS.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU7).



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 84...WW 85...WW 86...



DISCUSSION...LOW LEVEL WAA CONTINUES TO INCREASE THUNDERSTORMS INTO

ERN OK AHEAD OF STRONG SYSTEM NOW SPREADING ACROSS THE SRN HIGH

PLAINS.  VERY STRONG LOW AND DEEP LAYER SHEAR WILL REMAIN SUPPORTIVE

OF SUPERCELLS AND POSSIBLE TORNADOES WITH DISCRETE DEVELOPMENT

OVERNIGHT...WITH WEAK OR NO CAPPING TO BOUNDARY LAYER PARCELS.



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

500. MEAN STORM MOTION VECTOR 23035.





...EVANS

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