[BNAWX] Severe Local Storm Watch and Watch Cancellation

[EMWIN Server]

WWUS20 KWNS 240142
SEL0
SPC WW 240142
GAZ000-NCZ000-TNZ000-240600-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 60
NWS STORM PREDICTION CENTER NORMAN OK
940 PM EDT WED MAR 23 2011

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

       NORTHERN GEORGIA
       WESTERN NORTH CAROLINA
       EASTERN TENNESSEE

EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 940 PM
UNTIL 200 AM 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 65 STATUTE
MILES EAST AND WEST OF A LINE FROM 55 MILES NORTHEAST OF HOT
SPRINGS NORTH CAROLINA TO 90 MILES SOUTH SOUTHWEST OF KNOXVILLE
TENNESSEE.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).

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 56...WW 58...WW 59...

DISCUSSION...BROKEN BAND OF TSTMS INCLUDING LOW-TOPPED SUPERCELLS IS
EXPECTED TO PROGRESS EWD THROUGH THE SRN APPALACHIANS TONIGHT IN
ADVANCE OF MIDLEVEL IMPULSE MOVING THROUGH THE TN VALLEY.  AMBIENT
ENVIRONMENT REMAINS ONLY WEAKLY UNSTABLE OWING TO THE ONSET OF
NOCTURNAL COOLING IN THE BOUNDARY LAYER AND MARGINAL MOISTURE
CONTENT.  HOWEVER...GIVEN THE RELATIVELY STRONG LOW AND DEEP-LAYER
SHEAR AND PRESENCE OF ABOVE-MENTIONED IMPULSE...THE THREAT FOR A
COUPLE OF TORNADOES IN ADDITION TO HAIL AND LOCALLY DAMAGING WIND
GUSTS WILL PERSIST FOR THE NEXT FEW HOURS.

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 27040.


...MEAD


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