WATCHES: Tornado Watch Number 100

WWUS20 KWNS 221557
SEL0
SPC WW 221557
ALZ000-CWZ000-222200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 100
NWS STORM PREDICTION CENTER NORMAN OK
1055 AM CDT THU MAR 22 2012

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

SOUTHWEST ALABAMA
COASTAL WATERS

EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 1055 AM UNTIL
500 PM CDT.

TORNADOES...HAIL TO 0.5 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 35 STATUTE
MILES EAST AND WEST OF A LINE FROM 45 MILES SOUTH SOUTHEAST OF
MOBILE ALABAMA TO 90 MILES NORTH NORTHEAST OF MOBILE ALABAMA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU0).

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 99...

DISCUSSION...BAND OF STRONG STORMS EXTENDING FROM THE GULF OF MEXICO
NNEWD TO NEAR THE SERN MS/SWRN AL BORDER IS EXPECTED TO MOVE SLOWLY
EWD AS CELLS MOVE NNEWD 25-35 KT. ENVIRONMENT REMAINS SUPPORTIVE OF
STORM ROTATION WITH KMOB VAD PROFILE EXHIBITING 30-40 KT VEERING
FLOW IN THE LOWEST 1-3 KM...RESULTING IN 1 KM SHEAR OF 30 KT AND SRH
OF 300 M2/S2 IN THE LOWEST 2-3 KM...WITHIN UNSTABLE THERMODYNAMIC
CONDITIONS WITH MLCAPE OF 500-750 J/KG. THREAT FOR EMBEDDED
SUPERCELLS WILL CONTINUE INTO THE AFTERNOON WITH LOCAL DAMAGING
WINDS AND BRIEF TORNADOES POSSIBLE.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
400. MEAN STORM MOTION VECTOR 20030.

...WEISS

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