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Area Forecast Discussion

AFDFFC

Area Forecast Discussion
National Weather Service Peachtree City GA
628 AM EST Wed Dec 17 2025



...New 12Z Aviation Discussion...

.KEY MESSAGES...
Updated at 626 AM EST Wed Dec 17 2025


- Temperatures gradually rebound by the middle of this week.

- Rain chances return by mid-day Thursday, lingering through the
early overnight hours and clearing out Friday morning.

- Briefly cooler temperatures return in the wake of a cold front on
Friday before beginning to rebound over the weekend.

&&

.SHORT TERM...
(Today through Thursday)
Issued at 158 AM EST Wed Dec 17 2025

Temperatures and moisture increase through the short term as south
and southwesterly vertically stacked flow move in behind the high
sfc high. High will climb back into the 50s and 60s, with areas in
the southeast potentially reaching 70 Thursday afternoon.

A deep trough over the central CONUS as well as a subtropical
shortwave over The Gulf will provide some lift to tap into PWATs
over 1". Timing any precip will be fairly nebulous as blobs of
vorticity provide scattered lift well out ahead of the deeper polar
trough. Light and isolated showers could get started in northwest
Georgia as early as Wednesday afternoon, however any accumulations
will be minimal and will likely just result in dreary conditions.
Increasingly cloudy conditions can be anticipated across the CWA and
the forecast period through the overnight Wednesday. The best chance
for precip comes Thursday afternoon and into the long term outlook
as we get more consistent and broad lift. Widespread showers and
thunderstorms will likely get started Thursday morning and continue
into the extended outlook, and any precip will be fairly patchy in
nature (on-again-off-again in nature). No widespread severe is
expected at this time, though a few rumbles of thunder may be
possible.

&&

.LONG TERM...
(Thursday night through Tuesday)
Issued at 158 AM EST Wed Dec 17 2025

Showers and a few thunderstorms will be ongoing at the start of the
period Thursday night into Friday morning ahead of a cold front.
This rainfall looks come to an end quickly from west to east by
sunrise as the front sweeps across the area with cooler, drier air
quickly infiltrating in its wake. Highest QPF will be across north
Georgia where some spots could near or reach 1" in the mountains
when all is said and done by Friday morning with lesser totals
nearer a half inch expected for most other areas.

A brief return to cooler, slightly below-normal temperatures returns
on Friday as high pressure builds eastward amid breezy northwest
winds. Temperatures near to below freezing are more likely Saturday
morning as radiational cooling is maximized. A warming trend then is
underway thereafter as the surface high shifts quickly into the
Atlantic. A rapid-approaching shortwave/weak cold front will affect
the area by Sunday into Sunday night, though limited moisture return
keeps PoPs isolated/low-end chance in north Georgia with ensemble
probabilities indicating spotty light rain showers at most.

A weak CAD wedge looks to build into the area Monday into Tuesday as
surface high pressure settles into the Northeast, likely moderating
high temperatures closer to seasonal normals for the early part of
the work week. Thereafter, broad subtropical ridging looks to take
hold and strengthen by the tail end of the period, indicating a high
likelihood of above normal temperatures leading into the Christmas
holiday.

&&
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