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WWUS20 KWNS 251939

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SPC WW 251939

ARZ000-MSZ000-TNZ000-260100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 752

NWS STORM PREDICTION CENTER NORMAN OK

140 PM CST THU NOV 25 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       PARTS OF SOUTHEAST ARKANSAS

       PARTS OF NORTHERN MISSISSIPPI

       PARTS OF WESTERN TENNESSEE



EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 140 PM UNTIL

700 PM CST.



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 EAST AND WEST OF A LINE FROM 40 MILES SOUTHWEST OF

GREENVILLE MISSISSIPPI TO 30 MILES EAST NORTHEAST OF JACKSON

TENNESSEE.  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...THUNDERSTORMS ARE INCREASING ALONG AND AHEAD OF STRONG

COLD FRONT.  WHILE AIR MASS ONLY MARGINALLY UNSTABLE BUT VERY

MOIST...THE STRONG WIND PROFILES WILL SUPPORT A FEW SEVERE

THUNDERSTORMS BOTH EMBEDDED IN THE LINE ALONG FRONT AND POSSIBLY

MORE DISCRETE STORMS IN WARM SECTOR.  PRIMARY THREAT WILL BE

DAMAGING WINDS...HOWEVER THERE IS POTENTIAL OF BRIEF ROTATING STORMS

AND ISOLATED TORNADOES WITHIN ANY STORM THAT CAN DEVELOP IN WARM

SECTOR.



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 23040.





...HALES

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