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080 

WWUS20 KWNS 131239

SEL6

SPC WW 131239

ARZ000-MOZ000-131700-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 166

NWS STORM PREDICTION CENTER NORMAN OK

740 AM CDT THU MAY 13 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       EXTREME NORTHERN ARKANSAS

       SOUTH CENTRAL AND SOUTHEASTERN MISSOURI



EFFECTIVE THIS THURSDAY MORNING FROM 740 AM UNTIL NOON CDT.



HAIL TO 1 INCH 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 65

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES NORTH OF

HARRISON ARKANSAS TO 45 MILES NORTHEAST OF POPLAR BLUFF MISSOURI.

 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 164...



DISCUSSION...LINE OF STORMS EXTENDING FROM SWRN MO INTO NWRN AR WILL

TRACK ENEWD AT 45 KT WITH A POTENTIAL FOR STRONG WIND GUSTS AS THIS

ACTIVITY MOVES INTO A DESTABILIZING AIR MASS ACROSS SRN MO AND

EXTREME NRN AR.



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

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.

A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM MOTION

VECTOR 24045.





...PETERS/THOMPSON

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