[BNAWX] Severe Local Storm Watch and Watch Cancellation MSG

[EMWIN Server]

WWUS20 KWNS 212036
SEL4
SPC WW 212036
ALZ000-GAZ000-TNZ000-220300-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 374
NWS STORM PREDICTION CENTER NORMAN OK
335 PM CDT SUN MAY 21 2006

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

       NORTHERN ALABAMA
       NORTHWESTERN GEORGIA
       WESTERN AND SOUTHERN TENNESSEE

EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 335 PM UNTIL
1000 PM CDT.

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 40
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES NORTH OF
MEMPHIS TENNESSEE TO 55 MILES EAST OF CHATTANOOGA TENNESSEE.  FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU4).

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...CONTINUE...WW 372...WW 373...

DISCUSSION...THUNDERSTORMS EXPECTED TO INCREASE IN COVERAGE AND
INTENSITY ACROSS SRN TN DURING THE NEXT HOUR OR SO WHERE AIR MASS
HAS BECOME MODERATELY UNSTABLE SOUTH OF STATIONARY SURFACE FRONT.
ACTIVITY MAY BE AIDED BY WEAK MID LEVEL IMPULSE NOW MOVING INTO WRN
TN AS IT SHIFTS SEWD ACROSS THE TN RIVER VALLEY THIS EVENING.  SHEAR
WILL BE MARGINAL...BUT STILL SUFFICIENT...FOR SUPERCELLS GIVEN
AMOUNT OF INSTABILITY. ACTIVITY WILL LIKELY CONSOLIDATE INTO
CLUSTERS/MCS DURING THE EVENING.  LARGE HAIL AND DAMAGING WINDS
EXPECTED TO BE PRIMARY SEVERE THREATS.

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 500. MEAN STORM
MOTION VECTOR 29025.


...EVANS
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