

000 

WWUS20 KWNS 060256

SEL1

SPC WW 060256

OKZ000-TXZ000-061000-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 241

NWS STORM PREDICTION CENTER NORMAN OK

955 PM CDT SAT MAY 5 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       WESTERN OKLAHOMA

       THE EASTERN TEXAS PANHANDLE



EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 955 PM

UNTIL 500 AM CDT.



TORNADOES...HAIL TO 1.5 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 EAST AND WEST OF A LINE FROM 15 MILES NORTH OF ALVA

OKLAHOMA TO 60 MILES SOUTHWEST OF CLINTON 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...THIS TORNADO WATCH REPLACES TORNADO

WATCH NUMBER 234. WATCH NUMBER 234 WILL NOT BE IN EFFECT AFTER

955 PM CDT. CONTINUE...WW 236...WW 237...WW 238...WW 239...WW

240...



DISCUSSION...ISOLATED TO WIDELY SCATTERED SUPERCELLS POSING A THREAT

FOR TORNADOES MAY PERSIST/DEVELOP THROUGH EARLY SUNDAY AS WEAK COLD

SURGE MOVING E ACROSS THE OK/TX PANHANDLE ENCOUNTERS RICH MOIST

ENVIRONMENT OVER THE ERN PANHANDLE/WRN OK.



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

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 22030.





...CORFIDI

