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000 

WWUS20 KWNS 251414

SEL6

SPC WW 251414

LAZ000-TXZ000-CWZ000-252200-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 186

NWS STORM PREDICTION CENTER NORMAN OK

915 AM CDT WED APR 25 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHWEST AND SOUTH CENTRAL LOUISIANA

       SOUTHEAST TEXAS

       COASTAL WATERS



EFFECTIVE THIS WEDNESDAY MORNING AND AFTERNOON FROM 915 AM UNTIL

500 PM CDT.



TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 100 STATUTE

MILES EAST AND WEST OF A LINE FROM 65 MILES NORTH NORTHEAST OF

LAKE CHARLES LOUISIANA TO 60 MILES SOUTHEAST OF PALACIOS TEXAS.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU6).



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...THIS TORNADO WATCH REPLACES TORNADO

WATCH NUMBER 185. WATCH NUMBER 185 WILL NOT BE IN EFFECT AFTER

915 AM CDT.



DISCUSSION...SEMI-DISCRETE STORMS/POSSIBLE SUPERCELLS EXPECTED TO

PERSIST ALONG SLOWLY-PROGRESSIVE SQLN OVER SE TX.  WHILE LOW LEVEL

WINDS ARE WEAK...SLIGHTLY BACKED NEAR-SFC WINDS...RICH MOISTURE

SUPPLY...50+ KT MID LEVEL SWLY FLOW PARALLEL TO LINE...AND BROKEN

NATURE OF LINE SUGGEST ISOLATED TORNADO POTENTIAL AS STORMS RIDE NE

ALONG EXISTING STORM OUTFLOW INTO LA.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 24035.





...CORFIDI

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