

000 

WWUS20 KWNS 040244

SEL5

SPC WW 040244

LAZ000-MSZ000-CWZ000-040900-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 225

NWS STORM PREDICTION CENTER NORMAN OK

945 PM CDT THU MAY 3 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHERN AND EASTERN LOUISIANA

       SOUTHERN MISSISSIPPI

       COASTAL WATERS



EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 945 PM

UNTIL 400 AM CDT.



TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS

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



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE

MILES EAST AND WEST OF A LINE FROM 40 MILES NORTHWEST OF PINE

BELT MISSISSIPPI TO 55 MILES EAST OF INTRACOASTAL CITY LOUISIANA.

 FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU5).



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 219...TORNADO WATCH NUMBER 223. WATCH NUMBER 219 223

WILL NOT BE IN EFFECT AFTER 945 PM CDT. CONTINUE...WW 221...WW

224...



DISCUSSION...SUSTAINED STORMS/POSSIBLE SUPERCELLS ON LEADING EDGE OF

COMPOSITE COLD POOL ASSOCIATED WITH SE TX/SW LA MCS MAY POSE A

THREAT FOR BRIEF TORNADOES AND/OR DAMAGING WINDS THROUGH EARLY

FRIDAY.  WHILE DEEP SHEAR IS SOMEWHAT MARGINAL FOR SUSTAINED

SUPERCELLS...BACKED LOW LEVEL FLOW...RICH MOISTURE INFLOW AND

SEMI-DISCRETE NATURE OF STORMS SUGGEST A TORNADO THREAT AS THE

ACTIVITY OVERTURNS REGION NOT YET AFFECTED BY DEEP CONVECTION

EARLIER TODAY.



AVIATION...TORNADOES AND 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 24030.





...CORFIDI

