Preston, Georgia Weather Forecast Discussion

092
FXUS62 KFFC 301820
AFDFFC
Area Forecast Discussion
National Weather Service Peachtree City GA
220 PM EDT Tue Sep 30 2025
...Afternoon Area Forecast Discussion...
.KEY MESSAGES...
Updated at 219 PM EDT Tue Sep 30 2025
- Tropical Storm Imelda will not have any significant impacts on
   north and central Georgia.
- Isolated showers and storms today with dry conditions the rest
   of the week before rain chances slightly bump up this weekend.
- Tropical Storm Imelda will not have any significant impacts on
   north and central Georgia.
&&
.SHORT TERM...
(This afternoon through Wednesday)
Issued at 219 PM EDT Tue Sep 30 2025
A wild swing over the short term with an upper level ridge crashing
into the three headed hydra that is Humberto, Imelda, and our cutoff
low. Currently, moisture from the northeast continues to pump into
the Carolinas and Georgia. This will keep our ceilings low into the
afternoon and keep a few isolated showers in north Georgia. As the
two tropical systems shift northward and the upper level ridge moves
over, flow strengthens out of the northeast driving drier air
quickly across the region. A brief period of clouds clearing this
afternoon may allow for increased destabilization and a few isolated
showers (maybe a rumble of thunder) in north Georgia. This window
will be short loved though, as PWATs fall from around 1.25-1.5"
today (>50th percentile) to around 1" or less by tomorrow morning.
The ridge will move more overhead tomorrow and the sfc high over the
northeast expands and drives suppressive forcing southward. Combined
with clearing skies temperatures tomorrow will briefly climb back
into the mid 80s before we get another chance to cool in the long
term outlook.
&&
.LONG TERM...
(Thursday morning through next Monday)
Issued at 219 PM EDT Tue Sep 30 2025
At the beginning of the long term period, an upper level ridge will
be centered over the eastern CONUS, with an associated surface high
(1030+ mb) centered near the New England area. A CAD wedge will
extend from the surface high along the Appalachians, spreading into
Georgia by Thursday morning. Meanwhile, Imelda will be far away from
the east coast, accelerating eastward away from the Bahamas and
further into the Atlantic. The influence of the high pressure regime
and cold air advection will give us our first real taste of Fall
during the later parts of the work week. Dewpoints on Thursday and
Friday will largely be in the upper 40s to mid 50s, while high
temperatures each afternoon will rise into the mid 70s to low 80s.
Subsidence underneath the surface high will also inhibit rain
chances, with PoPs under 10 percent through the early parts of the
weekend. The pressure gradient will remain tight between the high
and Imelda, though not so tight that winds would approach Wind
Advisory criteria. Still, easterly winds are expected to be between
10-15 mph with gusts up to 20-25 mph on Thursday and Friday.
Going into the weekend, the airmass will begin to moderate as the
surface high sinks southward towards the Mid-Atlantic coast, with
temperatures and dewpoints gradually beginning to rise on Saturday.
This trend is expected to continue into the early parts of next
week. The increasing low-level moisture will be most readily
apparent -- by Sunday afternoon, dewpoints are forecast to increase
into the mid 60s in north Georgia and low to mid 70s in central
Georgia. Mid-range guidance is also coming into better agreement
about the development of a weak surface low in the northern Gulf by
Sunday, though uncertainty remains with respect to its evolution and
movement. The presence of such a low could spread additional
moisture into central and north Georgia on its northeastern side and
lead to a return of rain chances towards the end of the long term
period. For this forecast package, PoPs on Sunday and Monday have
been increased to 25-40% in central Georgia to reflect better
confidence in the development of the low. PoPs between 15-25% have
been introduced in north Georgia on Monday, as well.&&
.AVIATION...
(18Z TAFS)
Issued at 125 PM EDT Tue Sep 30 2025
MVFR conditions to continue improving through afternoon. Isolated
light rain showers possible across most of north Georgia through the
late afternoon. A few brief -tsra also possible this afternoon, but
less likely. Winds out of the northeast at 5 to 10 kts may gust 13
to 18kts. Winds slow and cigs climb further overnight.
//ATL Confidence...18Z Update...
Medium confidence timing end of MVFR Cigs.
High confidence all other elements.
SM
&&
.PRELIMINARY POINT TEMPS/POPS...
Athens          62  82  58  74 /   0   0   0   0
Atlanta         65  84  62  77 /  10   0   0   0
Blairsville     57  79  54  72 /  20   0   0   0
Cartersville    62  85  61  79 /  20   0   0   0
Columbus        64  86  63  81 /   0   0   0   0
Gainesville     63  82  59  75 /  10   0   0   0
Macon           62  83  60  77 /   0   0   0   0
Rome            65  87  62  82 /  20   0   0   0
Peachtree City  62  84  59  77 /   0   0   0   0
Vidalia         63  84  61  80 /   0   0   0   0
&&
.FFC WATCHES/WARNINGS/ADVISORIES...
None.
&&
$$
SHORT TERM...SM
LONG TERM....King
AVIATION...SM

NWS FFC Office Area Forecast Discussion