Area Forecast Discussion
Issued by NWS Atlanta, GA

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FXUS62 KFFC 201100 AAA
AFDFFC

Area Forecast Discussion...UPDATED
National Weather Service Peachtree City GA
700 AM EDT Mon Aug 20 2018

.UPDATE FOR AVIATION...

PREV DISCUSSION... /Issued 359 AM EDT Mon Aug 20 2018/

SHORT TERM /Today through Tuesday/...
Abundant moisture will continue over the forecast area and deep
SW flow will bring another surge today. This combined with
daytime instability will allow for scattered to numerous showers
and thunderstorms to develop favoring the western half of the
forecast area slightly.

While showers and storms will diminish during the evening, shower
and minimal thunderstorm chances will continue overnight favoring
north and portions of W GA as an upper trough approaches.

Along with the approach of an upper trough, a cold front is
forecast to approach far NW GA late on Tuesday. This combined with
deep moisture will allow for scattered to numerous showers and
thunderstorms. With the trough moving over the forecast area in the
afternoon and the deepest moisture beginning to exit, shower and
thunderstorm chances look to diminish for at least portions of NW
GA in the later afternoon. With the upper trough and cold front
approaching on Tuesday, a few thunderstorms could be severe.

Forecast high temperatures are running 2-4 degrees below normal today
and Tuesday. Forecast low temperatures are running near to slightly
above normal tonight.

Overall confidence is medium.

BDL

LONG TERM /Tuesday Night through Sunday/...
The long term begins with an exiting cold front leaving some low end
pops across parts of central GA Tuesday night. The upper trough
will slowly lift northeast with a dry northwest flow over the CWA
Wednesday and Thursday keeping the CWA pretty dry and stable.
Another weak short wave will move into the Ohio and Tennessee
valleys this weekend and this will bring increasing chances of
showers/tstorms to the CWA Friday through Sunday.

17

&&

.AVIATION...
12Z Update...
IFR/MVFR ceilings this morning with lower ceilings improving
to VFR through midday. Scattered to numerous showers and
thunderstorms expected to develop with the highest chances
over N and W GA. Surface winds mainly SW 10 kts or less.

//ATL Confidence...12Z Update...
Low confidence for ceilings and timing of thunderstorms
 affecting the airfield.
High confidence for vsbys and winds.

BDL

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          85  71  86  69 /  50  40  60  10
Atlanta         85  72  86  70 /  70  50  60  10
Blairsville     80  68  80  63 /  60  50  60  10
Cartersville    85  72  85  68 /  70  40  60  10
Columbus        87  74  88  72 /  70  50  60  10
Gainesville     83  71  84  69 /  70  50  60  10
Macon           87  72  89  72 /  50  40  60  10
Rome            86  72  86  68 /  70  40  60  10
Peachtree City  85  72  86  69 /  70  50  60  10
Vidalia         90  74  91  74 /  30  20  40  20

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

SHORT TERM...BDL
LONG TERM....17
AVIATION...BDL


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