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000 

WWUS20 KWNS 142226

SEL3

SPC WW 142226

ALZ000-FLZ000-MSZ000-CWZ000-150400-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 143

NWS STORM PREDICTION CENTER NORMAN OK

525 PM CDT SAT APR 14 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       A LARGE PART OF SOUTHERN ALABAMA

       WESTERN FLORIDA PANHANDLE

       SMALL PART OF SOUTHEAST MISSISSIPPI

       COASTAL WATERS



EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 525 PM UNTIL

1100 PM CDT.



TORNADOES...HAIL TO 2 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 95 STATUTE

MILES EAST AND WEST OF A LINE FROM 15 MILES NORTH NORTHEAST OF

MONTGOMERY ALABAMA TO 60 MILES SOUTH OF MOBILE ALABAMA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU3).



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 141. WATCH NUMBER 141 WILL NOT BE IN EFFECT AFTER

525 PM CDT. CONTINUE...WW 142...



DISCUSSION...SEVERE THUNDERSTORMS CONTINUE TO DEVELOP SWRN AL WITH

ADDITIONAL STORMS INCREASING ALONG COLD FRONT NOW MOVING EWD ACROSS

NWRN AL INTO SERN LA.  WITH MLCAPES AOA 1500 J/KG AND 50-60 KT OF

DEEP LAYER SHEAR...SUPERCELLS INCLUDING POSSIBLE TORNADOES EXPECTED

SEVERAL MORE HOURS ACROSS THE WATCH AREA.  THREAT WILL END FROM THE

W WITH THE PASSAGE OF THE COLD FRONT.



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

SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 24035.





...HALES

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