860
FXUS62 KFFC 291053
AFDFFC

Area Forecast Discussion
National Weather Service Peachtree City GA
653 AM EDT Fri Aug 29 2025

...New 12Z Aviation Discussion...

.SHORT TERM...
(Today through Saturday)
Issued at 305 AM EDT Fri Aug 29 2025

Key Messages:

    - Isolated to scattered showers and embedded thunderstorms are
      possible primarily along and south of I-20 this afternoon,
      increasing in coverage and spreading northward into the weekend.

    - Highs in the 80s today and mid-70s to mid-80s tomorrow remain
      below average for late August.

Discussion:

A shortwave digging across the Great Lakes region -- embedded within
the broader troughiness at the mid-levels -- is working to nudge our
presiding surface high offshore over the next day or so. HiRes
guidance suggests the aforementioned high will be swiftly replaced
by yet another high pressure system expanding into the Mid-Atlantic,
setting the stage for some in-situ wedging over the next few days.
With a swath of moisture traversing the northwesterly flow to our
west and streaming into the Deep South, our previously unseasonably
dry airmass has begun to erode. Yesterday`s 12Z sounding analyzed
1.03" of PW (sub-25th percentile), which had already increased in
1.62" by our most recent 00Z sounding -- closer to the 75th
percentile. As the column continues to moisten, chances for isolated
to scattered showers and perhaps some isolated embedded
thunderstorms will return to round off the week. Chances today will
be highest along our far southern tier, in closest proximity to a
stalled frontal boundary draped across the Florida
panhandle/northern Gulf. Highs this afternoon will be similar to
those of yesterday, topping out in the 80s and trending slightly
cooler in areas with higher chances for showers and thunderstorms.
Lows will drop into the upper 50s to upper 60s with more insulating
cloud cover overnight.

Moisture will continue to build in through Saturday, so expect rain
chances to expand northward, increasing in coverage as they do so
(with 50-70% chances for areas south of I-20, and 15-40% chances to
the north). Modest instability looks to be present to kick off the
weekend, so we may see more thunderstorms thrown into the mix. Due
to the thicker cloud cover expected with more numerous convection,
highs on Saturday will be several degrees cooler areawide than today
(in the mid-70s to mid-80s).

96

&&

.LONG TERM...
(Saturday night through Thursday)
Issued at 305 AM EDT Fri Aug 29 2025

Key Messages:

    - Below normal temperatures through next week.

    - Scattered rain chances focused to central Georgia through the
      weekend and into next week.

Discussion:

The extended forecast begins with the frontal boundary that was
laying across south GA having now moved into N FL and continues to
push south Sunday. This boundary extends westward across the
northern gulf and then up into southern LA and eastern TX. There are
a few waves moving east along the frontal boundary out of the
central and southern plains but the best moisture and dynamics stays
south of the area across the gulf and the FL peninsula through the
end of next week. This pattern will keep a decent amount of moisture
across the region keeping diurnally driven precip chances in the 30%
to 60% range across the CWA (Highest chances will be across central
GA which is closest in proximity to the frontal boundary). At the
same time a wedge of high pressure begins to build down the eastern
seaboard Sun pushing into NE GA Sun night/Mon morning. This wedge
will bring in cooler/moist easterly flow keeping temps low, but also
keeping precip chances up through day 7. This wedge appears to
become the dominate feature for north and central GA through at
least Wed/Thu of next week. The models are hinting at a fairly
strong frontal boundary moving south out of the Northern Plains Wed
and pushing into NW GA by Thu Evening. If this does occur it should
help to scour out the wedge and bring in a cooler/drier airmass for
next Fri/Sat. The models have been showing some consistency with
this pattern so starting to have some confidence in it coming to
fruition.

Temps will remain below seasonal norms with highs mainly in the
upper 70s to middle 80s. Night time low temps will drop down into
the upper 50s to middle 60s through day 7.

01

&&

.AVIATION...
(12Z TAFS)
Issued at 651 AM EDT Fri Aug 29 2025

Primarily VFR conds exp thru the TAF period. Patchy MVFR to low-
VFR cigs psbl through 15Z, but fairly low confidence on placement. Most
sites likely to go BKN MVFR (perhaps lower for CSG/MCN) late
period. SCT-BKN cigs at 3-6kft to linger into the evening. VCSH
psbl for northern TAF sites as early as 18-19Z, with best chances
for direct terminal impacts in -SHRA coming Saturday morning.
-TSRA should be relegated to CSG/MCN this afternoon. Prevailing
-SHRA likely after 12Z tomorrow. Winds will be light out of the E
 side today, generally at 7kts or less. Ocnl CALM/VRB conds are
 possible even after daybreak given weak flow.


//ATL Confidence...12Z Update...
Medium confidence ceiling progression and precipitation chances.
High confidence all other elements.

96

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          85  64  79  63 /   0  30  40  10
Atlanta         85  67  80  65 /  10  40  40  20
Blairsville     80  59  78  58 /   0  10  30  10
Cartersville    87  64  84  64 /   0  20  30  10
Columbus        82  69  78  66 /  40  50  70  20
Gainesville     85  64  81  63 /   0  20  30  10
Macon           83  67  76  65 /  20  50  60  20
Rome            87  62  84  62 /   0  10  20  10
Peachtree City  84  67  78  63 /  20  40  50  20
Vidalia         85  69  79  66 /  30  30  60  20

&&

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

$$

SHORT TERM...96
LONG TERM....01
AVIATION...96