[BNAWX] Severe Local Storm Watch and Watch Cancellation

[EMWIN Server]

WWUS20 KWNS 261817
SEL7
SPC WW 261817
GAZ000-NCZ000-TNZ000-VAZ000-270200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 727
NWS STORM PREDICTION CENTER NORMAN OK
220 PM EDT TUE OCT 26 2010

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

       NORTHERN GEORGIA
       FAR WESTERN NORTH CAROLINA
       EASTERN TENNESSEE
       FAR WESTERN VIRGINIA

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 220 PM UNTIL
1000 PM EDT.

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 60 STATUTE
MILES EAST AND WEST OF A LINE FROM 45 MILES SOUTH SOUTHEAST OF
CHATTANOOGA TENNESSEE TO 55 MILES NORTH OF BRISTOL TENNESSEE.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU7).

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 722...WW 723...WW
724...WW 725...WW 726...

DISCUSSION...TSTMS ARE EXPECTED TO INCREASE IN COVERAGE AND
INTENSITY THIS AFTERNOON ALONG AND IN THE WAKE OF GRAVITY WAVE
PROPAGATING SEWD THROUGH THE AREA.  AMBIENT AIR MASS CONTINUES TO
WARM/DESTABILIZE WITH MLCAPE VALUES NOW AROUND 500-1000 J/KG.  GIVEN
THE STRONG LOW AND DEEP-LAYER SHEAR IN PLACE...ENVIRONMENT WILL BE
SUPPORTIVE OF SUPERCELLS CAPABLE OF DAMAGING WINDS AND A FEW
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 500.
MEAN STORM MOTION VECTOR 23040.


...MEAD


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