Severe Weather Watch Notice

From ABC 33/40 E-Warn :

WWUS20 KWNS 132118
SEL2
SPC WW 132118
ALZ000-LAZ000-MSZ000-140100-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 152
NWS STORM PREDICTION CENTER NORMAN OK
420 PM CDT MON APR 13 2009

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

A SMALL PART OF SOUTHWEST ALABAMA
SOUTHEAST LOUISIANA
SOUTHERN INTO EAST CENTRAL MISSISSIPPI

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 420 PM UNTIL 800
PM CDT.

HAIL TO 2 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 45
STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES NORTH
NORTHEAST OF PINE BELT MISSISSIPPI TO 30 MILES EAST SOUTHEAST OF
BATON ROUGE LOUISIANA. FOR A COMPLETE DEPICTION OF THE WATCH SEE
THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).

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 150...WW 151...

DISCUSSION...THUNDERSTORMS ARE DEVELOPING NEAR A NNE-SSW OUTFLOW
BOUNDARY EMANATING FROM THE LARGE MCS OVER THE NRN GULF OF
MEXICO...AND A WEAK COLD FRONT IS ALSO APPROACHING THIS AREA FROM
THE W IN ASSOCIATION WITH THE MID LEVEL TROUGH JUST W OF THE MS
RIVER. A CORRIDOR OF MODERATE INSTABILITY AND STRONG VERTICAL SPEED
SHEAR WILL SUPPORT A FEW ORGANIZED STORMS...INCLUDING SUPERCELLS
CAPABLE OF PRODUCING LARGE HAIL/DAMAGING WINDS THROUGH ABOUT SUNSET.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 27030.

...THOMPSON

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