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826 

WWUS20 KWNS 092246

SEL8

SPC WW 092246

ALZ000-GAZ000-100400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 768

NWS STORM PREDICTION CENTER NORMAN OK

645 PM EDT FRI OCT 9 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       PARTS OF EASTERN AND SOUTHERN ALABAMA

       PARTS OF NORTHWESTERN GEORGIA



EFFECTIVE THIS FRIDAY NIGHT FROM 645 PM UNTIL MIDNIGHT EDT.



HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

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



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50

STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES NORTH

NORTHEAST OF ROME GEORGIA TO 25 MILES SOUTH SOUTHEAST OF SELMA

ALABAMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



OTHER WATCH INFORMATION...CONTINUE...WW 765...WW 766...WW 767...



DISCUSSION...LINE OF STRONG/SEVERE STORMS ACROSS NRN/WRN AL

SUPPORTED BY STEEP LOW LEVEL LAPSE RATES AND 50-60KT OF DEEP LAYER

SHEAR.  PRIMARY THREAT WILL BE DAMAGING WINDS GIVEN THE

UNIDIRECTIONAL SHEAR AND WARM MID LEVEL TEMPS.  WIND THREAT SHOULD

GRADUALLY DIMINISH AFTER SUNSET BUT WILL CONTINUE INTO NWRN GA.



AVIATION...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 400. MEAN STORM MOTION

VECTOR 24035.





...HALES

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