

000 

WWUS20 KWNS 142048

SEL4

SPC WW 142048

OKZ000-TXZ000-150300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 704

NWS STORM PREDICTION CENTER NORMAN OK

345 PM CDT SUN OCT 14 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       PARTS OF WESTERN OKLAHOMA

       PARTS OF NORTHWEST TEXAS



EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 345 PM UNTIL

1000 PM CDT.



TORNADOES...HAIL TO 2.5 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 55 STATUTE

MILES EAST AND WEST OF A LINE FROM 25 MILES WEST OF ENID OKLAHOMA

TO 60 MILES SOUTHWEST OF WICHITA FALLS TEXAS.  FOR A COMPLETE

DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE

(WOUS64 KWNS WOU4).



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 703...



DISCUSSION...WITH A MDT AIR MASS IN PLACE E OF DRY LINE/COLD FRONT

WRN OK AND CINH RAPIDLY WEAKENING...SEVERE THUNDERSTORMS EXPECTED TO

DEVELOP RAPIDLY WRN PORTION OF WATCH.  STRONG DEEP LAYER SHEAR AND

FORECASTED LOW LEVEL SHEAR  TO INCREASE...CONDITIONS ARE FAVORABLE

FOR SUPERCELL DEVELOPMENT.  PRIMARY THREAT WILL BE LARGE HAIL...BUT

WITH FAVORABLE LOW LCLS AND SHEAR PROFILES THERE IS A TORNADO THREAT

WITH ANY DISCRETE SUPERCELL THAT FORMS.  ACTIVITY WILL GRADUALLY

DEVELOP EWD THIS EVENING AS STORMS MOVE RAPIDLY NEWD IN STRONG

STEERING FLOW.



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

SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE

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

550. MEAN STORM MOTION VECTOR 22035.





...HALES

