

000 

WWUS20 KWNS 040421

SEL0

SPC WW 040421

GAZ000-041000-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 120

NWS STORM PREDICTION CENTER NORMAN OK

1220 AM EDT WED APR 4 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHERN GEORGIA



EFFECTIVE THIS WEDNESDAY MORNING FROM 1220 AM UNTIL 600 AM 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 40

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 45 MILES SOUTHWEST

OF ROME GEORGIA TO 75 MILES NORTHEAST OF ATLANTA GEORGIA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU0).



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 116...WW 117...WW

118...WW 119...



DISCUSSION...WELL ORGANIZED SQUALL LINE IS ADVANCING SEWD AT ROUGHLY

35 KT ACROSS NRN AL AND SERN TN...AND WILL QUICKLY ENTER NRN GA

WITHIN THE HOUR.  DAMAGING WINDS AND LARGE HAIL CAN BE EXPECTED WITH

THIS LINE OF THUNDERSTORMS.



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 450. MEAN STORM MOTION

VECTOR 29035.





...DARROW

