[BNAWX] Severe Local Storm Watch and Watch Cancellation

[EMWIN Server]

WWUS20 KWNS 111639
SEL6
SPC WW 111639
INZ000-KYZ000-OHZ000-TNZ000-112300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 16
NWS STORM PREDICTION CENTER NORMAN OK
1140 AM EST WED FEB 11 2009

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

       SOUTHERN INDIANA
       CENTRAL KENTUCKY
       SOUTHWEST OHIO
       MIDDLE TENNESSEE

EFFECTIVE THIS WEDNESDAY MORNING AND EVENING FROM 1140 AM UNTIL
600 PM EST.

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 65 MILES NORTH NORTHEAST OF
LOUISVILLE KENTUCKY TO 65 MILES SOUTH SOUTHEAST OF NASHVILLE
TENNESSEE.  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.

DISCUSSION...NARROW LINE OF CONVECTION IS INTENSIFYING OVER WESTERN
KY/TN AS VIGOROUS UPPER TROUGH ROTATES INTO REGION.  DESPITE VERY
WEAK INSTABILITY...THE THREAT OF LOCALLY DAMAGING WINDS WILL
INCREASE WITH TIME DUE TO DRYING ALOFT AND ENHANCED POTENTIAL FOR
DOWNWARD TRANSFER OF MOMENTUM.  LOW AND MID LEVEL VERTICAL SHEAR
PROFILES WILL ALSO BE FAVORABLE FOR BOW/LEWP STRUCTURES ALONG THE
LINE AND AN ATTENDANT RISK OF ISOLATED TORNADOES.

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 350.
MEAN STORM MOTION VECTOR 25040.


...HART


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