

340 

WWUS20 KWNS 090513

SEL0

SPC WW 090513

ALZ000-GAZ000-091200-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 800

NWS STORM PREDICTION CENTER NORMAN OK

1110 PM CST TUE DEC 8 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       EASTERN AND NORTHERN ALABAMA

       NORTHWEST GEORGIA



EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 1110 PM

UNTIL 600 AM CST.



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 55 STATUTE

MILES EAST AND WEST OF A LINE FROM 30 MILES SOUTH SOUTHWEST OF

MONTGOMERY ALABAMA TO 50 MILES NORTH NORTHEAST OF ROME 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 797...WW 798...WW 799...



DISCUSSION...TSTMS NOW IN CNTRL AL...AND OTHERS LIKELY TO CONTINUE

FORMING FARTHER W ALONG SW/NE CONFLUENCE LINE STRADDLING THE MS/AL

BORDER...EXPECTED TO CONTINUE MOVING/DEVELOPING RAPIDLY NEWD INTO NE

AL/NW GA THROUGH EARLY WED.  LOW LVL AIR MASS RECOVERY WILL CONTINUE

IN THE WW AREA...GIVEN RECENT TRENDS OF WEDGE FRONT N GA ...STRONG

PRESSURES IN NE AL/NW GA...AND CONTINUED ENE MOTION OF AR UPR VORT.

STRENGTH OF CLOUD LAYER SHEAR AND ORIENTATION OF CONVECTIVE LINES

PARALLEL TO DEEP SW FLOW SUGGEST POTENTIAL FOR A FEW SUSTAINED

STORMS.  EMBEDDED BOWS AND POSSIBLE SUPERCELLS COULD PRODUCE DMGG

WIND AND ISOLD BUT STRONG TORNADOES.



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 24060.





...CORFIDI

