ABC 33/40 EWARN: Severe Local Storm Watch and Watch Cancellation MSG

From ABC 33/40 E-Warn :

WWUS20 KWNS 132031
SEL9
SPC WW 132031
ALZ000-LAZ000-MSZ000-140400-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 49
NWS STORM PREDICTION CENTER NORMAN OK
330 PM CDT SUN MAR 13 2005

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

CENTRAL ALABAMA
NORTHERN LOUISIANA
CENTRAL MISSISSIPPI

EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 330 PM UNTIL 1100
PM CDT.

HAIL TO 2.5 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 40
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 15 MILES SOUTHWEST OF
SHREVEPORT LOUISIANA TO 40 MILES SOUTH SOUTHEAST OF BIRMINGHAM
ALABAMA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).

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...AIR MASS HAS BECOME MODERATELY TO VERY UNSTABLE S OF
FRONTAL ZONE LOCATED JUST N OF WATCH AREA. WITH 30-40 KT OF DEEP
LAYER SHEAR AND STEEP LAPSE RATES...STRONG/SEVERE THUNDERSTORMS WILL
DEVELOP VICINITY FRONTAL ZONE. INITIAL THREAT WILL BE LARGE HAIL
AND THEN EVOLVE MORE INTO A WIND DAMAGE THREAT AS STORMS DEVELOP
INTO SHORT LINES/BOWS.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 26030.

...HALES

;325,0940 333,0862 322,0862 314,0940;

WWWW

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