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WWUS20 KWNS 110553

SEL0

SPC WW 110553

GAZ000-111000-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 20

NWS STORM PREDICTION CENTER NORMAN OK

1250 AM EST FRI JAN 11 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL AND SOUTHERN GEORGIA



EFFECTIVE THIS FRIDAY MORNING FROM 1250 AM UNTIL 500 AM EST.



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 50 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 30 MILES SOUTH SOUTHWEST OF

COLUMBUS GEORGIA TO 45 MILES EAST SOUTHEAST OF MACON GEORGIA.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU0).



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...CONTINUE...WW 19...



DISCUSSION...MERGER BETWEEN LONG-LIVED SUPERCELL AND BOWING LINE

SEGMENT HAS OCCURRED OVER ERN AL NORTHEAST OF TOI...WITH BOW ECHO

INTENSIFYING AS IT MOVES INTO GA NEAR CSG.  CONVECTIVE LINE EXTENDS

WSWWD TOWARD TOI WHERE RADAR IMAGES SUGGEST POSSIBLE WAVE DEVELOPING

ON THE LINE.  CONTINUED STRONG SSWLY LOW-LEVEL AND DEEP LAYER

SHEAR/SRH IS SUPPORTIVE OF POSSIBLE SUPERCELL DEVELOPMENT WITHIN THE

LINE...DESPITE MARGINAL CAPE GENERALLY AROUND 500 J/KG.  THREAT FOR

DAMAGING WINDS AND A POSSIBLE TORNADO OR TWO WILL PERSIST FOR THE

NEXT SEVERAL HOURS.



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 400.

MEAN STORM MOTION VECTOR 24035.





...WEISS

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