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398 

WWUS20 KWNS 262246

SEL0

SPC WW 262246

ARZ000-MOZ000-OKZ000-TNZ000-TXZ000-270700-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 530

NWS STORM PREDICTION CENTER NORMAN OK

545 PM CDT THU JUL 26 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       ARKANSAS

       MISSOURI BOOTHEEL

       SOUTHEAST OKLAHOMA

       WESTERN TENNESSEE

       EXTREME NORTHEAST TEXAS



EFFECTIVE THIS THURSDAY AFTERNOON AND FRIDAY MORNING FROM 545 PM

UNTIL 200 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 60

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 50 MILES SOUTHWEST

OF POTEAU OKLAHOMA TO 70 MILES NORTHEAST OF JACKSON TENNESSEE.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU0).



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 524...WW 525...WW

526...WW 527...WW 528...WW 529...



DISCUSSION...SEVERAL BANDS OF STRONG/SEVERE TSTMS...ORIENTED

NORTHEAST-SOUTHWESTWARD FROM FAR SOUTHEAST MO/WESTERN KY INTO

WESTERN AR/SOUTHEAST OK...WILL CONTINUE TO ORGANIZE/SPREAD EASTWARD

THIS EVENING ACROSS THE WATCH AREA. WHILE VERTICAL SHEAR IS MODEST

ACROSS THE REGION...THE AIRMASS OF THESE STORMS REMAINS

HOT/MOIST...WITH AN AMPLE CAPE/DCAPE ENVIRONMENT FAVORABLE FOR

SPORADIC DOWNBURSTS AND WIND DAMAGE ALONG WITH PULSE-TYPE SEVERE

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 27025.





...GUYER

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