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193 

WWUS20 KWNS 300540

SEL6

SPC WW 300540

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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 756

NWS STORM PREDICTION CENTER NORMAN OK

1140 PM CST MON NOV 29 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       WEST CENTRAL AND NORTHERN ALABAMA



EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 1140 PM

UNTIL 700 AM CST.



TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS

TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE

MILES EAST AND WEST OF A LINE FROM 25 MILES NORTH OF HUNTSVILLE

ALABAMA TO 50 MILES EAST OF MERIDIAN MISSISSIPPI.  FOR A COMPLETE

DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE

(WOUS64 KWNS WOU6).



REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR

TORNADOES AND 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.



OTHER WATCH INFORMATION...CONTINUE...WW 755...



DISCUSSION...BAND OF THUNDERSTORMS ACROSS CENTRAL/NE MS WILL SPREAD

EWD/NEWD ACROSS WRN AND NRN AL THROUGH THE OVERNIGHT HOURS.  THE LOW

LEVELS WILL CONTINUE TO WARM/MOISTEN NWD ACROSS AL AS THE WARM FRONT

PROGRESSES NWD...ALLOWING INSTABILITY TO BE BASED NEAR THE SURFACE.

THE NEAR SURFACE-BASED INSTABILITY AND VERY STRONG LOW-LEVEL SHEAR

WILL SUPPORT A RISK OF A FEW TORNADOES AND DAMAGING GUSTS WITH

EMBEDDED SUPERCELL OR LEWP STRUCTURES THROUGH THE EARLY MORNING

HOURS.



AVIATION...TORNADOES AND 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 24040.





...THOMPSON

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