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WWUS20 KWNS 230755

SEL0

SPC WW 230755

NCZ000-TNZ000-VAZ000-231500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 10

NWS STORM PREDICTION CENTER NORMAN OK

150 AM CST MON JAN 23 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       FAR WESTERN NORTH CAROLINA

       MIDDLE AND EASTERN TENNESSEE

       FAR SOUTHWEST VIRGINIA



EFFECTIVE THIS MONDAY MORNING FROM 150 AM UNTIL 900 AM CST.



HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 75

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



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70

STATUTE MILES EAST AND WEST OF A LINE FROM 65 MILES NORTH OF

KNOXVILLE TENNESSEE TO 10 MILES WEST OF CHATTANOOGA 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 7...WW 8...WW 9...



DISCUSSION...PREFRONTAL NE-SW SQLN NOW NEAR BNA...AND COMPLEX AREA

OF SUPERCELLS STORMS FARTHER E/SE...EXPECTED TO CONTINUE GENERALLY

ENEWD INTO E TN LATER THIS MORNING AS REGION IS GLANCED BY STRONG

UPR TROUGH NOW ASSUMING AN INCREASINGLY NEGATIVE TILT OVER W TN/SE

MO.  INTENSE WIND FIELD ASSOCIATED WITH THE VORT SUGGESTS THAT

STORMS WILL CONTINUE TO POSE A RISK OF DMGG SFC WINDS AND POSSIBLY

AN ISOLD TORNADO...DESPITE RESIDUAL LAYER OF STABLE WEDGE-TYPE AIR

THAT SHOULD REMAIN OVER MOST OF THE WW REGION AT THE SFC.

NOTE: EXISTING TORNADO WW 7 WILL BE AREALLY EXTENDED SLIGHTLY EWD TO

INCLUDE THOSE COUNTIES IN MIDDLE TN NOT CURRENTLY UNDER WW 7 AND NOT

INCLUDED IN THIS SVR TSTM WW.



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

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65 KNOTS.

A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400. MEAN STORM MOTION

VECTOR 24045.





...CORFIDI

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