[BNAWX] Severe Local Storm Watch and Watch Cancellation

[EMWIN Server]

WWUS20 KWNS 241850
SEL6
SPC WW 241850
ALZ000-GAZ000-MSZ000-NCZ000-TNZ000-250200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 546
NWS STORM PREDICTION CENTER NORMAN OK
150 PM CDT FRI JUN 24 2011

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

       NORTHERN ALABAMA
       NORTHERN GEORGIA
       NORTHERN AND CENTRAL MISSISSIPPI
       FAR WESTERN NORTH CAROLINA
       SOUTHERN TENNESSEE

EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 150 PM UNTIL 900
PM CDT.

HAIL TO 1.5 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 60
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES WEST
NORTHWEST OF GREENWOOD MISSISSIPPI TO 60 MILES NORTHEAST OF
ATLANTA GEORGIA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).

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 544...WW 545...

DISCUSSION...MULTIPLE TSTM CLUSTERS HAVE EVOLVED THIS AFTERNOON
AHEAD OF SYNOPTIC COLD FRONT AND WITHIN A MOIST AIR MASS WITH MLCAPE
OF 3000-4000 J/KG.  THE STRONG INSTABILITY AND 30-35 KT OF NWLY FLOW
IN THE MIDLEVELS WILL SUPPORT THE CONTINUED UPSCALE GROWTH OF STORMS
INTO ONE OR MULTIPLE FORWARD-PROPAGATING CONVECTIVE SYSTEMS WITH THE
RISK FOR DAMAGING WINDS AND HAIL.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 29030.


...MEAD

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