WATCHES: Tornado Watch Number 938

WWUS20 KWNS 301002
SEL8
SPC WW 301002
FLZ000-GAZ000-CWZ000-301700-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 938
NWS STORM PREDICTION CENTER NORMAN OK
500 AM EST SUN NOV 30 2008

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

NORTHERN FLORIDA
SOUTHERN GEORGIA
COASTAL WATERS

EFFECTIVE THIS SUNDAY MORNING FROM 500 AM UNTIL NOON 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 60 STATUTE
MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH OF VALDOSTA
GEORGIA TO 50 MILES EAST SOUTHEAST OF APALACHICOLA FLORIDA. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU8).

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.

DISCUSSION...TSTMS ARE EXPECTED TO INTENSIFY THIS MORNING WITHIN
PRE-FRONTAL CONVECTIVE BAND FROM THE NERN GULF OF MEXICO INTO SRN
GA. WHILE ENVIRONMENT IS FORECAST TO REMAIN ONLY MARGINALLY
UNSTABLE WITH MLCAPE AOB 500 J/KG...INCREASING LARGE-SCALE ASCENT
AHEAD OF AMPLIFYING UPPER TROUGH AND ENHANCED LOW-LEVEL CONVERGENCE
COINCIDENT WITH SUB-SYNOPTIC SCALE LOW DEVELOPING NEWD SHOULD FOCUS
CLUSTERS OF ORGANIZED TSTMS. GIVEN THE STRONG AMBIENT SHEAR /I.E.
0-1 KM SHEAR OF AROUND 40 KT AND 0-6 KM SHEAR OF 60-65 KT/ AND MOIST
BOUNDARY LAYER CONDITIONS...POTENTIAL WILL EXIST FOR EMBEDDED
SUPERCELL AND BOWING STRUCTURES CAPABLE OF DAMAGING WINDS AND
PERHAPS A TORNADO OR TWO.

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 22045.

...MEAD/THOMPSON

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
To unsubscribe from WX-STORM send e-mail to LISTSERV@LISTSERV.ILLINOIS.EDU with
"unsub wx-storm" in the body of your message. For more information write cnovy@cox.net.