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