WATCHES: Severe Thunderstorm Watch Number 151

WWUS20 KWNS 092040
SEL1
SPC WW 092040
LAZ000-TXZ000-CWZ000-100300-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 151
NWS STORM PREDICTION CENTER NORMAN OK
335 PM CDT THU MAY 9 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
WESTERN LOUISIANA
SOUTHEAST TEXAS
COASTAL WATERS

* EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 335 PM UNTIL
1000 PM CDT.

* PRIMARY THREATS INCLUDE...
NUMEROUS DAMAGING WIND GUSTS LIKELY WITH A FEW SIGNIFICANT GUSTS
TO 75 MPH POSSIBLE
SEVERAL LARGE HAIL EVENTS WITH A FEW VERY LARGE HAIL EVENTS TO 2
INCHES IN DIAMETER POSSIBLE
A FEW TORNADOES POSSIBLE

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 95
STATUTE MILES EAST AND WEST OF A LINE FROM 10 MILES NORTHEAST OF
TYLER TEXAS TO 30 MILES SOUTH SOUTHWEST OF PORT ARTHUR TEXAS.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU1).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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...

DISCUSSION...E CNTRL TX MCS WITH EMBEDDED BOWING SEGMENTS/SUSTAINED
STORMS EXPECTED TO MOVE MAINLY ESE THROUGH LATE EVE. SYSTEM WILL BE
MAINTAINED BY PERSISTENT...MOIST SSELY 0-1 KM FLOW BENEATH 35-40 KT
SW FLOW AHEAD OF S CNTRL TX UPR IMPULSE. SYSTEM MAY SOMEWHAT
ACCELERATE WITH EWD EXTENT...AND BE AUGMENTED BY ADDITIONAL STORM
DEVELOPMENT ON BOTH ITS N AND S ENDS. POTENTIAL WILL EXIST FOR DMGG
WIND...SVR HAIL...AND POSSIBLY A BRIEF TORNADO OR TWO.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
MOTION VECTOR 28035.


...CORFIDI

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