

165 

WWUS20 KWNS 052139

SEL3

SPC WW 052139

KSZ000-OKZ000-TXZ000-060500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 333

NWS STORM PREDICTION CENTER NORMAN OK

440 PM CDT FRI JUN 5 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTHWEST KANSAS

       OKLAHOMA PANHANDLE

       WEST TEXAS INCLUDING THE PANHANDLE



EFFECTIVE THIS FRIDAY AFTERNOON FROM 440 PM UNTIL MIDNIGHT CDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

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



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70

STATUTE MILES EAST AND WEST OF A LINE FROM 55 MILES SOUTH

SOUTHWEST OF LUBBOCK TEXAS TO 70 MILES NORTH NORTHEAST OF GARDEN

CITY KANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).



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 332...



DISCUSSION...SCATTERED THUNDERSTORMS ARE FORMING OVER WEST TX AND

SOUTHWEST KS IN REGION OF MODERATE INSTABILITY AND STRONG DAYTIME

HEATING.  THIS ACTIVITY WILL LIKELY INCREASE IN COVERAGE AND SPREAD

EASTWARD THROUGH THE EVENING ACROSS THE WATCH AREA.  DAMAGING WINDS

ARE LIKELY THE MAIN THREAT WITH HIGH-BASED STORMS.

HOWEVER...SUFFICIENT EFFECTIVE SHEAR IS PRESENT FOR A FEW SUPERCELLS

AND A RISK OF LARGE HAIL.



AVIATION...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 28020.





...HART

