

555 

WWUS20 KWNS 292235

SEL6

SPC WW 292235

KSZ000-OKZ000-TXZ000-300600-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 636

NWS STORM PREDICTION CENTER NORMAN OK

535 PM CDT WED JUL 29 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       PARTS OF SOUTHWEST KANSAS

       OKLAHOMA PANHANDLE

       MUCH OF TEXAS PANHANDLE



EFFECTIVE THIS WEDNESDAY AFTERNOON AND THURSDAY MORNING FROM 535

PM UNTIL 100 AM CDT.



HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 65

STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTH OF

LIBERAL KANSAS TO 25 MILES SOUTH SOUTHEAST OF PLAINVIEW TEXAS.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU6).



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



OTHER WATCH INFORMATION...CONTINUE...WW 634...WW 635...



DISCUSSION...SEVERE THUNDERSTORMS CONTINUE TO INCREASE IN NUMBER

ACROSS NERN NM/SERN CO. AS STORMS DEVELOP SEWD INTO AN INCREASINGLY

MOIST/UNSTABLE AIR MASS THE THREAT OF LARGE HAIL AND DAMAGING WINDS

WILL CONTINUE AND POSSIBLY BECOME MORE WIDESPREAD.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 29025.





...HALES

