

430 

WWUS20 KWNS 300033

SEL9

SPC WW 300033

OKZ000-300600-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 319

NWS STORM PREDICTION CENTER NORMAN OK

735 PM CDT TUE MAY 29 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       EAST CENTRAL OKLAHOMA



EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 735 PM

UNTIL 100 AM CDT.



HAIL TO 2.5 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 45

STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES WEST

NORTHWEST OF BARTLESVILLE OKLAHOMA TO 25 MILES EAST SOUTHEAST OF

MCALESTER OKLAHOMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).



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 314...WW 315...WW

316...WW 317...WW 318...



DISCUSSION...A LARGE CLUSTER OF INTENSE THUNDERSTORMS OVER NORTH

CENTRAL OK WILL LIKELY BEGIN SPREADING SOUTHEASTWARD THROUGH THE

EVENING TOWARD THE TUL/MLC AREA.  HIGH INSTABILITY COUPLED WITH

SUFFICIENT VERTICAL SHEAR WILL PROMOTE THE RISK OF SUPERCELLS

CAPABLE OF LARGE HAIL AND DAMAGING WINDS.  THIS CLUSTER OF STORMS

MAY CONGEAL AND GROW UPSCALE INTO A BOW ECHO COMPLEX...WITH AN

ENHANCED THREAT OF DAMAGING WINDS LATER THIS EVENING.



AVIATION...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 500. MEAN STORM

MOTION VECTOR 31030.





...HART

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