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248 

WWUS20 KWNS 290338

SEL1

SPC WW 290338

OKZ000-290700-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 201

NWS STORM PREDICTION CENTER NORMAN OK

1035 PM CDT SAT APR 28 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHWEST THROUGH CENTRAL OKLAHOMA



EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 1035 PM

UNTIL 200 AM CDT.



TORNADOES...HAIL TO 3 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 40 STATUTE

MILES EAST AND WEST OF A LINE FROM 25 MILES SOUTH SOUTHEAST OF

FORT SILL OKLAHOMA TO 35 MILES NORTHWEST OF CHANDLER 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 200...



DISCUSSION...SUPERCELLS THAT FORMED JUST W OF SW-NE FRONT THROUGH

SW/CNTRL OK EXPECTED TO CONTINUE MOVING ENE THROUGH EARLY SUN.  AS

THE STORMS ENCOUNTER WARMER/MORE MOIST AIR E OF BOUNDARY...INCREASE

IN THETA-E MAY SUFFICIENTLY ENHANCE LOW LVL MESO STRENGTH TO POSE A

RISK FOR TORNADOES...IN ADDITION TO ON-GOING RISK FOR LARGE

HAIL/HIGH WIND.



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

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 25025.





...CORFIDI

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