WATCHES: Severe Thunderstorm Watch Number 134

WWUS20 KWNS 031919
SEL4
SPC WW 031919
ARZ000-LAZ000-MSZ000-040300-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 134
NWS STORM PREDICTION CENTER NORMAN OK
220 PM CDT TUE APR 3 2012

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

SOUTHERN ARKANSAS
NORTHERN LOUISIANA
CENTRAL AND SOUTHERN MISSISSIPPI

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 220 PM UNTIL
1000 PM CDT.

HAIL TO 1 INCH 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 65
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES EAST
NORTHEAST OF JACKSON MISSISSIPPI TO 40 MILES NORTH NORTHWEST OF
NATCHITOCHES LOUISIANA. FOR A COMPLETE DEPICTION OF THE WATCH
SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).

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 132...WW 133...

DISCUSSION...MCS EVOLVING OVER SRN AR INTO NWRN MS IS EXPECTED TO
INTENSIFY AS IT PROGRESSES SEWD INTO A STEEP LOW-LEVEL LAPSE RATE
ENVIRONMENT WHERE MLCAPE HAS INCREASED TO 1000-2000 J/KG. AREA VAD
DATA FROM THE SERN TX/SWRN LA COASTAL AREAS INTO CNTRL LA INDICATE
THE PRESENCE OF A 20-30 KT SSWLY LLJ WHICH WILL ENHANCE INFLOW INTO
EVOLVING SYSTEM. THE PRIMARY HAZARD WILL BE DAMAGING WINDS...THOUGH
SOME HAIL IS POSSIBLE.

AVIATION...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 33030.

...MEAD

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