252
FXUS62 KFFC 070252
AFDFFC

Area Forecast Discussion
National Weather Service Peachtree City GA
952 PM EST Sat Dec 6 2025


.KEY MESSAGES...
Updated at 936 PM EST Sat Dec 6 2025

- A Dense Fog Advisory is in effect for portions of north and
  central Georgia until 10 AM Sunday morning.

- Rainfall totals of 0.10 to 0.40 inch are expected across central
  and portions of north Georgia through Monday afternoon.

- Rain chances (20% to 40%) will return Wednesday night through
  Friday morning.

&&

.UPDATE...
Issued at 936 PM EST Sat Dec 6 2025

As cloud cover diminished around sunset and winds have become
light at 5 mph or less, strong radiational cooling has allowed for
the development of fog in areas south of the I-85 corridor. These
conditions, combined with a strong nocturnal inversion, make it
likely that the areal extent of this fog will expand as far north
as the north Atlanta metro area and to the southwest extent of the
forecast area. Dense fog is also already being observed, and is
likely to persist through mid-morning on Sunday in any areas where
fog develops, warranting the issuance of a Dense Fog Advisory
until 10 AM on Sunday. More uncertainty remains in portions of
east- central Georgia on the potential for fog development, as
cloud cover on the north side of the retreating frontal boundary
may inhibit its formation. The Dense Fog Advisory does not extend
into the far southeast or far north portions of the forecast
area, where fog is anticipated to be more patchy. It should also
be noted that temperatures in portions of northwest Georgia are
cooling slightly faster than previously forecast, and will drop
to near or just below freezing, increasing the possibility in
patchy freezing fog development in these locations.

&&

.SHORT TERM...
(This afternoon through Sunday)
Issued at 122 PM EST Sat Dec 6 2025

Current radar imagery shows showers moving more into central GA
and should be on their way out of the area by later this
afternoon. Moist conditions are expected to hold into the
overnight hours with limited dry air movement. Another shortwave
moves across the southeast tomorrow surging moisture out ahead in
north and central Georgia tonight into tomorrow morning. Near
surface light easterly flow, increasing moisture, and some CAA
will drive the potential for widespread fog for areas mostly along
and south of I20. Visibilities may drop to 1/4 mile or less in
some areas and a dense fog advisory may be necessary for central
and portions of north Georgia. More patchy fog is also possible in
northern GA and may be co-located with temperatures near
freezing. Surfaces will likely not be cold enough for any rime
icing though there is some potential on the protected slopes in
far north Georgia. Low clouds and will likely hold conditions
steady late into the morning tomorrow (10/11am). Showers return to
the area once again tomorrow evening. No thunderstorms area
expected at this time.

&&

.LONG TERM...
(Monday morning through next Friday)
Issued at 122 PM EST Sat Dec 6 2025

The mid-/upper-level shortwave trough axis will shift east of the
County Warning Area (CWA) on Monday, in turn pushing what remains
of the Gulf moisture feed eastward as well. The result will be
rain showers -- likely relegated to the eastern half or so of the
CWA -- tapering off over the course of the day. The National Blend
of Models (NBM) added light snow mixing with rain in the north
Georgia mountains on Monday, but I opted to omit any frozen precip
as I suspect that the atmospheric profile will be too dry in the
mid-/upper-levels and too warm at/near the surface.

Tuesday and Wednesday will bring dry, mostly sunny conditions
thanks to high pressure and a continental airmass. Wednesday
should be a noticeably warmer day than Tuesday, with highs in the
mid-50s to lower 60s compared to upper 40s to mid-50s. This warm-
up will occur in response to low-/mid-level flow shifting from
northerly to westerly in advance of a northern stream
shortwave/jet streak that will dive southward and eastward across
the Ohio/Tennessee River Valleys Wednesday into Thursday. Like the
previous long term discussion mentioned, ensemble guidance
continues to differ regarding the southern extent of the
associated surface low and front, as well as how much moisture
will be in place. Have capped PoPs at 30% (analogous to widely
scattered showers) Wednesday night through Friday morning given
said forecast uncertainty.

As the forecast stands now, the end of the long term period could
bring quite the cool-down, with Saturday (12/13) morning lows in
the mid-20s to lower 30s across much of the CWA. Stay tuned!

&&

.AVIATION...
(00Z TAFS)
Issued at 657 PM EST Sat Dec 6 2025

Ceilings have scattered to primarily VFR across north and portions
of central GA. Winds will be NW at 3-5 kts to start the evening,
becoming light and variable late tonight and into Sunday morning.
The combination of clearing skies, increasing moisture, and light
winds, widespread fog is anticipated across central GA and
portions of north GA including the ATL sites and AHN. LIFR/IFR
conditions are likely at all sites by 09-10Z and through 15-16Z
before slow improvement begins. Areas of VV02 are possible
towards the southeast Sunday morning. Fog is forecast to dissipate
and ceilings are forecast to improve to MVFR by 17-18Z. Winds
during the daytime Sunday will be E/SE at 3-5 kts.

//ATL Confidence...00Z Update...
Medium confidence on the timing of fog and low ceilings.
High confidence on all elements.

King

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          31  53  39  52 /   0  10  40  30
Atlanta         35  54  42  52 /   0  10  50  20
Blairsville     29  54  36  46 /   0  10  40  30
Cartersville    30  55  39  52 /   0  10  40  10
Columbus        40  57  44  57 /  10  20  50  10
Gainesville     33  53  41  52 /   0  10  40  30
Macon           38  55  42  56 /  10  10  40  20
Rome            33  57  43  54 /   0  10  30  10
Peachtree City  33  55  41  53 /   0  20  50  10
Vidalia         44  56  45  57 /  30  30  40  20

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
Dense Fog Advisory until 10 AM EST Sunday for GAZ020>025-027-
030>039-041>062-066>076-078>084-089>096-102>108.

&&

$$

SHORT TERM...SM
LONG TERM....Martin
AVIATION...King