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WWUS20 KWNS 051321

SEL4

SPC WW 051321

ALZ000-FLZ000-GAZ000-CWZ000-052100-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 4

NWS STORM PREDICTION CENTER NORMAN OK

820 AM EST FRI JAN 5 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       PARTS OF SOUTHERN AND EASTERN ALABAMA

       MUCH OF FLORIDA PANHANDLE

       LARGE PART OF NORTHERN AND WESTERN GEORGIA

       COASTAL WATERS



EFFECTIVE THIS FRIDAY MORNING AND AFTERNOON FROM 820 AM UNTIL 400

PM 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 95 STATUTE

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

ATLANTA GEORGIA TO 30 MILES SOUTHWEST OF PANAMA CITY FLORIDA.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU4).



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 3. WATCH NUMBER 3 WILL NOT BE IN EFFECT AFTER 820 AM

EST.



DISCUSSION...STRONG TROUGH LOWER MS VALLEY CONTINUES TO DRIVE SEVERE

SQUALL LINE EWD INTO GA.  WITH STRONG DEEP LAYER SHEAR AND A MOIST

MODESTLY UNSTABLE AIR MASS IN WARM SECTOR...EMBEDDED

SUPERCELLS/ISOLATED TORNADOES WILL BE ASSOCIATED WITH SQUALL LINE.

IN ADDITION MORE DISCRETE SUPERCELLS ARE LIKELY AHEAD OF LINE WITH

TORNADO POTENTIAL AS WELL.



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 500.

MEAN STORM MOTION VECTOR 24035.





...HALES

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