[BNAWX] Severe Local Storm Watch and Watch Cancellation MSG

[EMWIN Server]

WWUS20 KWNS 231713
SEL8
SPC WW 231713
INZ000-KYZ000-TNZ000-240100-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 798
NWS STORM PREDICTION CENTER NORMAN OK
1215 PM CDT SAT SEP 23 2006

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

       EXTREME SOUTHERN INDIANA
       CENTRAL KENTUCKY
       MIDDLE INTO PART OF SOUTHEAST TENNESSEE

EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 1215 PM UNTIL
800 PM CDT.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE
MILES EAST AND WEST OF A LINE FROM 25 MILES NORTHWEST OF
LOUISVILLE KENTUCKY TO 60 MILES SOUTHWEST OF CROSSVILLE
TENNESSEE.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).

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 797...

DISCUSSION...SEVERE THREAT APPEARS TO BE DEVELOPING ALONG TWO
DIFFERENT REGIMES EARLY THIS AFTERNOON INTO CENTRAL KY AND MIDDLE
TN.  ONE WILL BE ASSOCIATED WITH EWD MOVING QUASI-LINEAR MCS NOW
MOVING INTO CENTRAL KY...WHILE ANOTHER EVOLVES AS MORE DISCRETE
STORMS DEVELOP INVOF WARM FRONT EXTENDING FROM WRN KY INTO MIDDLE
TN.  AIR MASS IS ALREADY MODERATELY UNSTABLE WITHIN WARM SECTOR AND
WILL DESTABILIZE N-NE OF WARM FRONT THIS AFTERNOON UNDER CLEARING
SKIES. STRONG LOW LEVEL SHEAR WILL SUPPORT A TORNADO
THREAT...ESPECIALLY NEAR THE SURFACE WARM FRONT.  DAMAGING WINDS
WILL BE ADDITIONAL HAZARD.

AVIATION...TORNADOES AND 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 25035.


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