Severe Weather Watch Notice

From ABC 33/40 E-Warn :

WWUS20 KWNS 182350
SEL8
SPC WW 182350
ALZ000-FLZ000-CWZ000-190500-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 208
NWS STORM PREDICTION CENTER NORMAN OK
640 PM CDT FRI APR 18 2008

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

SOUTHWEST ALABAMA
FAR WESTERN PARTS OF THE FLORIDA PANHANDLE
COASTAL WATERS

EFFECTIVE THIS FRIDAY NIGHT FROM 640 PM UNTIL MIDNIGHT CDT.

TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 50 STATUTE
MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHWEST OF
EVERGREEN ALABAMA TO 35 MILES SOUTH OF MOBILE ALABAMA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU8).

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 207...

DISCUSSION...SCTD SEMI-DISCRETE SUPERCELLS MAY CONTINUE TO FORM
AHEAD OF SRN MS/SE LA COLD FRONT THROUGH THIS EVENING AS THE FRONT
CONTINUES E INTO AL. TEMPORAL VEERING OF FLOW WILL OCCUR AT ALL
LEVELS OVER SW AL AS NEGATIVELY-TILTED LWR MS VLY UPR TROUGH
CONTINUES NEWD. THIS SHOULD SUPPORT INCREASED LOW-LEVEL MOISTURE
ADVECTION INTO WW AREA AT THE SAME TIME THAT DEEP DIRECTIONAL SHEAR
STRENGTHENS. OVERALL RESULT MAY BE AN EXTENTION OF CURRENT
SVR/ISOLD TORNADO THREAT IN SE MS/SE LA EWD INTO SW AL...BEFORE
DIURNAL COOLING/NVA ULTIMATELY SUPPRESS STORM DEVELOPMENT LATER
TONIGHT.

AVIATION...TORNADOES AND 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 26035.

...CORFIDI

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