WATCHES: Severe Thunderstorm Watch Number 78

WWUS20 KWNS 261113
SEL8
SPC WW 261113
ALZ000-FLZ000-MSZ000-CWZ000-261800-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 78
NWS STORM PREDICTION CENTER NORMAN OK
515 AM CST TUE FEB 26 2008

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

SOUTHERN ALABAMA
WESTERN FLORIDA PANHANDLE
SOUTHEAST MISSISSIPPI
COASTAL WATERS

EFFECTIVE THIS TUESDAY MORNING FROM 515 AM UNTIL NOON CST.

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 55
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 50 MILES WEST
NORTHWEST OF MOBILE ALABAMA TO 45 MILES NORTH NORTHEAST OF
CRESTVIEW FLORIDA. 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.

OTHER WATCH INFORMATION...CONTINUE...WW 76...WW 77...

DISCUSSION...A BAND OF STRONG/SEVERE THUNDERSTORMS WILL SPREAD ESEWD
FROM SE MS INTO SWRN/SRN AL THIS MORNING IN ADVANCE OF A COLD FRONT.
LOW-LEVEL MOISTENING OVERNIGHT HAS RESULTED IN THE DEVELOPMENT OF
SURFACE-BASED INSTABILITY ACROSS SRN AL...WHERE LOCAL VWP/S SHOW 50
KT WSWLY FLOW WITHIN 1 KM OF THE GROUND. PRESENT INDICATIONS ARE
THAT DAMAGING WINDS WILL BE THE PRIMARY SEVERE STORM THREAT WITH
STORMS IN THE BAND...ALONG WITH ISOLATED LARGE HAIL.

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 450. MEAN STORM MOTION
VECTOR 26045.

..THOMPSON

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