461
FXUS62 KFFC 121848
AFDFFC

Area Forecast Discussion
National Weather Service Peachtree City GA
248 PM EDT Sat Sep 12 2026

...Afternoon Area Forecast Discussion...

.KEY MESSAGES...

- Isolated to scattered showers and thunderstorms to continue
  through late this evening. Any storms that form will be capable
  of producing gusty winds, frequent lightning, and locally heavy
  rainfall.

- Patchy fog is likely Sunday morning especially in areas that
  received recent heavy rainfall.

- Comparatively hot and humid conditions will return from Sunday
  on, with diminishing rain chances (<20%).

&&

.SHORT TERM...
(This afternoon through Sunday)
Issued at 242 PM EDT Sat Sep 12 2026

Portions of the I-20 corridor and areas of north Atlanta got quite a
bit of rain both yesterday and this morning. 24hr radar estimates
indicate a good swath of 3-5" from Carroll to north Fulton and
Dekalb counties and a bullseye of nearly 7-8" in the Villa Rica
area. There`s been a `lull` in activity for this area (west of I-85)
over the past hour or so as a result of subsidence at the midlevels
per latest satellite imagery. Thus, ongoing shower and thunderstorm
activity is primarily confined to areas east of Interstate 85. It`s
unclear how much additional shower and thunderstorm activity west
Georgia will receive for the remainder of the day. However,
additional midlevel disturbances back to our west, in association
with the primary midlevel trough axis, are aiding in new convective
development back in parts of north AL. So if the sky is able to
continue clearing and the environment recovers west Georgia could
certainly see some additional showers and isolated thunderstorms
late this afternoon into the evening hours. If things do get going
again, I-20 west corridor will need close monitoring given recent
heavy rains. All thunderstorms will be capable of locally heavy
rainfall, frequent lightning and gusty winds. It should be noted
that it wont take much wind for trees to topple over especially in
areas where soils are primed and saturated.

Patchy fog and perhaps some lower clouds will be possible early
Sunday morning -- particularly in areas that received heavy rain.
Drier weather returns for most on Sunday as midlevel ridging begins
to slide more overhead. Isolated afternoon showers and storms will
be confined to far south-central GA but chances remain low (<15%
chance). Under partly to mostly sunny skies, temperatures are
forecast to warm back into the lower 90s everywhere except the
higher elevations, by the afternoon.

&&

.LONG TERM...
(Monday morning through next Friday)
Issued at 242 PM EDT Sat Sep 12 2026

By Monday morning the main frontal boundary from the short term will
have moved south of the state with high pressure continuing to build
back into the area. This ridge will also bring in a drier airmass
into central GA with a slightly drier airmass keeping things dry
through at least Days 5 to 6 (Wed and Thu).  Current model runs show
a wave moving back into the region from the Atlantic Thu evening
into Fri which could increase precipitation chances. for now just
going with a 20% chance for Fri afternoon and will see over the
next few days how the models handle this.

Temps will stay in the upper 80s to middle 90s through day 7 but
with the drier airmass moving in Heat index values will slowly fall
through Thursday . Min Dewpoints Mon and Tue will be in the upper
60s to lower 70s but they will fall into the lower to middle 60s by
Wed. Even with temps still in the lower 90s it will feel a lot more
comfortable.

&&

.AVIATION...
(18Z TAFS)
Issued at 136 PM EDT Sat Sep 12 2026

A mix of MVFR and VFR cigs prevail and exp this trend to hold
thru the aftn. Axis of precip has shifted east of the ATL
airfields and a lull may cont for a few hours. Another disturbance
may lead to more shra/tsra between 20-24z for these sites but it`s
unclear to what extent. Otherwise, sct shra/tsra to push thru
remaining TAF sites thru 00z. SW wind 4-8kts shift to the W/NW by
Sunday. May see low cigs/vsbys develop after 06z but less certain
on cigs as winds turn NW bringing back drier air.

//ATL Confidence...18Z Update...

Medium confidence on all elements.

07

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          69  91  69  94 /  20   0   0   0
Atlanta         72  91  72  95 /  20   0   0   0
Blairsville     64  85  63  88 /  10   0   0  10
Cartersville    69  92  68  95 /  10   0   0   0
Columbus        72  93  72  96 /  10  10   0   0
Gainesville     70  89  69  93 /  20   0   0   0
Macon           71  92  71  95 /  20  10   0   0
Rome            68  92  68  96 /  10   0   0   0
Peachtree City  70  91  69  94 /  20  10   0   0
Vidalia         73  93  73  94 /  40  10  20   0

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
None.
&&

$$

SHORT TERM...07
LONG TERM....01
AVIATION...07