[BNAWX] Severe Local Storm Watch and Watch Cancellation

[EMWIN Server]

WWUS20 KWNS 011715
SEL8
SPC WW 011715
ALZ000-GAZ000-NCZ000-TNZ000-020100-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 468
NWS STORM PREDICTION CENTER NORMAN OK
1210 PM CDT SUN JUL 1 2007

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

       NORTHERN AND EASTERN ALABAMA
       NORTHERN AND CENTRAL GEORGIA
       FAR WESTERN NORTH CAROLINA
       SOUTHERN MIDDLE AND EASTERN TENNESSEE

EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 1210 PM UNTIL
800 PM CDT.

HAIL TO 1 INCH 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 75
STATUTE MILES EITHER SIDE OF A LINE FROM 45 MILES NORTHWEST OF
HUNTSVILLE ALABAMA TO 50 MILES SOUTH OF ATHENS GEORGIA.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU8).

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.

DISCUSSION...TSTMS ARE STRENGTHENING ATTM OVER MIDDLE TN ALONG GUST
FRONT LEFT FROM OVERNIGHT STORMS IN W TN.  OTHER STORMS ARE FORMING
ALONG SEGMENT OF WEAK COLD FRONT OVER SRN EAST TN AND OVER THE
MOUNTAINS OF N GA.  STEEP LOW LEVEL LAPSE RATES AND HI PWS WILL BE
SUPPORTIVE OF WET MICROBRUSTS.  VWP DATA SHOW WEAK UNIDIRECTIONAL
NNW FLOW IN THE 850-700 MB LAYER.  COUPLED WITH AXIS OF STRONGEST
LOW LVL HEATING/CONFLUENCE ALONG AND AHEAD OF FRONT...STORMS SHOULD
MOVE/DEVELOP MAINLY SE...AND MAY ORGANIZE INTO ONE OR TWO SHORT
BANDS.

AVIATION...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 550. MEAN STORM MOTION
VECTOR 30020.


...CORFIDI


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