[BNAWX] Severe Local Storm Watch and Watch Cancellation

[EMWIN Server]

WWUS20 KWNS 212117
SEL7
SPC WW 212117
KYZ000-TNZ000-220300-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 7
NWS STORM PREDICTION CENTER NORMAN OK
320 PM CST THU JAN 21 2010

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

       SOUTH CENTRAL KENTUCKY
       MIDDLE INTO A SMALL PART OF EASTERN TENNESSEE

EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 320 PM UNTIL
900 PM CST.

HAIL TO 2 INCHES 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 85
STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES WEST OF
CHATTANOOGA TENNESSEE TO 20 MILES NORTH OF BOWLING GREEN
KENTUCKY.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).

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...THIS SEVERE THUNDERSTORM WATCH REPLACES
TORNADO WATCH NUMBER 6. WATCH NUMBER 6 WILL NOT BE IN EFFECT
AFTER 320 PM CST.

DISCUSSION...THUNDERSTORMS WILL CONTINUE TO INCREASE ACROSS WW
THROUGH THE EVENING AHEAD OF POTENT UPPER LEVEL SYSTEM.  INSTABILITY
REMAINS WEAK...HOWEVER DEEP ASCENT AND SUFFICIENT MUCAPE WILL
SUPPORT SCATTERED STRONG TO SEVERE TSTMS WELL INTO THE EVENING.
DEEP LAYER SHEAR WILL ALSO SUSTAIN A RISK OF SUPERCELLS...WITH
PRIMARY THREATS OF LARGE HAIL AND ISOLATED DAMAGING WINDS.  GIVEN
STRENGTH OF SHEAR...A TORNADO OR TWO CAN NOT BE RULED OUT.

AVIATION...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 350. MEAN STORM
MOTION VECTOR 24020.


...EVANS
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