

984 

WWUS20 KWNS 120536

SEL2

SPC WW 120536

ARZ000-MSZ000-121100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 572

NWS STORM PREDICTION CENTER NORMAN OK

1235 AM CDT SUN JUL 12 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHEAST ARKANSAS

       NORTHWEST MISSISSIPPI



EFFECTIVE THIS SUNDAY MORNING FROM 1235 AM UNTIL 600 AM 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 40

STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH

NORTHWEST OF WALNUT RIDGE ARKANSAS TO 120 MILES SOUTH OF

JONESBORO ARKANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).



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.



DISCUSSION...INTENSE COMPLEX OF THUNDERSTORMS WILL LIKELY CONTINUE

SSEWD ACROSS WW THROUGH THE EARLY MORNING HOURS WITHIN FEED OF VERY

UNSTABLE AIR ALONG NOSE OF 25-35 KT WLY LLJ.  ACTIVITY MIGHT TEND TO

BECOME A SMALL BOWING LINEAR COMPLEX OVER NERN AR IF STORMS CAN

ORGANIZE ALONG A COMMON COLD POOL.  LARGE HAIL...DAMAGING WINDS AND

HEAVY RAIN WILL ALL BE THREATS WITH THIS ACTIVITY.



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 600. MEAN STORM

MOTION VECTOR 34035.





...EVANS

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