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WWUS20 KWNS 030906

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SPC WW 030906

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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 258

NWS STORM PREDICTION CENTER NORMAN OK

410 AM CDT SAT MAY 3 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       EXTREME SOUTHWEST ALABAMA

       SOUTHEAST LOUISIANA

       SOUTHERN MISSISSIPPI

       COASTAL WATERS



EFFECTIVE THIS SATURDAY MORNING FROM 410 AM UNTIL 1100 AM 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 80 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 5 MILES WEST SOUTHWEST OF

INTRACOASTAL CITY LOUISIANA TO 50 MILES EAST OF PINE BELT

MISSISSIPPI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).



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...CONTINUE...WW 257...



DISCUSSION...A PRE-FRONTAL LINE OF THUNDERSTORMS WILL CONTINUE TO

SAG SEWD ACROSS LA/MS THROUGH THE MORNING...WITH THE CONTINUED

THREAT FOR DAMAGING WINDS AND ISOLATED LARGE HAIL.  ADDITIONAL WARM

SECTOR DEVELOPMENT OF DISCRETE SUPERCELLS WILL CONTINUE FROM SE LA

INTO SRN MS...WITH RICH L0W-LEVEL MOISTURE AND STRONG LOW-LEVEL

SHEAR FAVORING THE POTENTIAL FOR A FEW TORNADOES.



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.





...THOMPSON

