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000 

WWUS20 KWNS 250615

SEL2

SPC WW 250615

ALZ000-FLZ000-CWZ000-251400-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 862

NWS STORM PREDICTION CENTER NORMAN OK

110 AM CDT MON AUG 25 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHERN AND CENTRAL ALABAMA

       WESTERN PARTS OF THE FLORIDA PANHANDLE

       COASTAL WATERS



EFFECTIVE THIS MONDAY MORNING FROM 110 AM UNTIL 900 AM CDT.



TORNADOES...HAIL TO 0.5 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 80 STATUTE

MILES EAST AND WEST OF A LINE FROM 50 MILES WEST NORTHWEST OF

TROY ALABAMA TO 30 MILES SOUTH SOUTHEAST OF PENSACOLA FLORIDA.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU2).



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.



DISCUSSION...TSTMS HAVE BECOME SOMEWHAT BETTER ORGANIZED IN THE PAST

1-2 HRS FROM SW AL S AND SW INTO THE N CNTRL GULF OF MEXICO.  THIS

INTENSIFICATION APPEARS TO BE RELATED...IN PART...TO MORE

PROGRESSIVE /EWD/ MOVEMENT THAT HAS BEEN TAKEN ON BY T.D. FAY AND

THE MID LATITUDE VORT MAX WITH WHICH IT MERGED.  AS THE LARGE SCALE

CIRCULATION SYSTEM CONTINUES ENEWD...CONVERGENCE SHOULD BECOME MORE

FOCUSED IN ZONE OF RICH GULF INFLOW /SFC DEWPOINTS IN THE MID 70S

F/...BENEATH WEAK COLD ADVECTION ALOFT ALONG THE CNTRL GULF CST.

ASSOCIATED DESTABILIZATION MAY SUPPORT A FEW SUSTAINED UPDRAFTS WITH

LOW LVL ROTATION/ISOLD TORNADOES GIVEN QUALITY OF MOISTURE INFLOW

AND FRICTIONAL/ ISALLOBARICALLY-INDUCED BACKING OF FLOW.



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

SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE

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

450. MEAN STORM MOTION VECTOR 19035.





...CORFIDI

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