[BNAWX] Severe Local Storm Watch and Watch Cancellation MSG

[EMWIN Server]

WWUS20 KWNS 212028
SEL4
SPC WW 212028
GAZ000-NCZ000-TNZ000-220300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 234
NWS STORM PREDICTION CENTER NORMAN OK
430 PM EDT FRI APR 21 2006

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

       NORTHERN GEORGIA
       EXTREME WESTERN NORTH CAROLINA
       EASTERN TENNESSEE

EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 430 PM UNTIL
1100 PM EDT.

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 65 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 15 MILES SOUTHWEST OF
CHATTANOOGA TENNESSEE TO 15 MILES EAST SOUTHEAST OF KNOXVILLE
TENNESSEE.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).

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 232...WW 233...

DISCUSSION...ISOLATED SEVERE THUNDERSTORMS ARE INCREASING ACROSS
PARTS OF MIDDLE TN AND NORTHEAST AL.  THESE STORMS WILL SPREAD
ACROSS WATCH AREA DURING THE EVENING HOURS.  AIR MASS CONTINUES TO
MOISTEN AND DESTABILIZE WITH SBCAPE VALUES OVER 1000 J/KG.  LOW
LEVEL AND DEEP LAYER VERTICAL SHEAR PROFILES APPEAR FAVORABLE FOR
SUPERCELL STORMS CAPABLE OF LARGE HAIL...DAMAGING WINDS...AND
ISOLATED TORNADOES.

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 24035.


...HART

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