WATCHES: Tornado Watch Number 69

WWUS20 KWNS 210930
SEL9
SPC WW 210930
LAZ000-TXZ000-CWZ000-211700-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 69
NWS STORM PREDICTION CENTER NORMAN OK
325 AM CST THU FEB 21 2008

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

SOUTHERN LOUISIANA
SOUTHEAST TEXAS
COASTAL WATERS

EFFECTIVE THIS THURSDAY MORNING FROM 325 AM UNTIL 1100 AM CST.

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 45 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 50 MILES WEST SOUTHWEST OF
LAKE CHARLES LOUISIANA TO 30 MILES EAST NORTHEAST OF BOOTHVILLE
LOUISIANA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).

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.

DISCUSSION...SUSTAINED TSTMS/SUPERCELLS FORMING ALONG WARM FRONT
EXTENDING ESE OVER THE NWRN GULF FROM JUST S OF BPT EXPECTED
INCREASE IN COVERAGE THROUGH MIDDAY AS LOW-LEVEL WAA SLOWLY
STRENGTHENS DOWNSTREAM FROM APPROACHING SRN RCKYS TROUGH. WARM
FRONT SHOULD CONTINUE SLOWLY NEWD THROUGH THE PERIOD...RESULTING IN
A GRADUAL NEWD SHIFT OF SVR THREAT ASSOCIATED WITH THE STORMS.
COMBINATION OF INCREASING WIND FIELD/MOISTURE INFLOW SUGGESTS A
POTENTIAL FOR TORNADOES...IN ADDITION TO LOCALLY DMGG
WIND/MARGINALLY SVR HAIL...AS DEEP WSWLY SHEAR REMAINS AROUND 50
KTS.

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 500.
MEAN STORM MOTION VECTOR 26030.

..CORFIDI

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