489
FXUS62 KFFC 021036
AFDFFC

Area Forecast Discussion
National Weather Service Peachtree City GA
636 AM EDT Wed Sep 2 2026


...New 12Z Aviation Discussion...

.KEY MESSAGES...

  - High pressure will promote hot temperatures and suppress rain
    chances through midweek.

  - Above normal temperatures and heat index values in the triple
    digits will continue throughout the week. A Heat Advisory is
    in effect for far northwest Georgia from 1 PM to 8 PM today.

  - Rain chances return to central Georgia on Thursday, increasing
    across the forecast area through the end of the week.

&&

.SHORT TERM...
(Today through Thursday)
Issued at 320 AM EDT Wed Sep 2 2026

A high pressure regime remains in place over the Southeast, with the
axis of a broad upper ridge near the Alabama/Georgia state line and
extending northward into the lower Great Lakes region and surface
high pressure centered over the southern Appalachians. The ongoing
warming trend under the ridge will culminate today with high
temperatures rising into the mid to upper 90s across the area with
the exception of the far northeastern mountains. The warmest
temperatures today ate expected in areas north and west of Atlanta,
which will be as much as 12-15 degrees above daily normals compared
to 6-10 degrees above normal in central Georgia. Dewpoints will also
range from the upper 60s to low 70s as moist easterly flow streams
into the area around the surface high. Heat index will rise into the
low to mid 100s this afternoon. Portions of northwest Georgia are
forecast to see heat indices as high as 107 degrees, because of
this, a Heat Advisory has been issued for this area from 1 PM to 8
PM today.

Drier air under the ridge will also help suppress diurnal
convection. That said, a few isolated showers and thunderstorms
cannot be ruled out this afternoon. This possibility is most likely
in south-central Georgia furthest from the center of the ridge and
in the far northeastern mountains with increased topographic lift.
Even here, PoPs are no higher than 20% at this time. Conditions will
be largely similar on Thursday, though the influence of the ridge
will begin to weaken as the axis begins to shift to the east. Heat
indices in the low to mid 100s are expected once again, and the
potential for Heat Advisory criteria being reached or exceeded will
need to be monitored once again. More scattered thunderstorms are
forecast to return to central Georgia on Thursday afternoon.

&&

.LONG TERM...
(Thursday night through Tuesday)
Issued at 320 AM EDT Wed Sep 2 2026

A ridge remains in place over the southeastern United States on
Friday into the weekend. Little change in the temperature trends are
likely because of this. Higher than average temperatures will remain
in place - with temperatures around 8-13 degrees higher than
climatology through Sunday. Daytime highs will be in the upper 80s
to upper 90s, with heat indices from around 90 to 106F.

Sufficient moisture and instability will be in place to sustain
diurnal convection. Moisture levels, and therefore precip chances,
will be greater over central Georgia than northern Georgia and the
Atlanta metro, where PoPs will be around 20% or less. The greatest
risk for thunderstorms will be on Sunday, with additional moisture
and instability, associated with the arrival of a frontal
boundary.

Slightly cooler air is expected behind the frontal boundary on
Monday, as a ridge of high pressure centered over Hudson Bay sinks
southward. Still, daytime highs will remain above climatology by
around 5 to 10 degrees, with highs in the low 80s to mid 90s across
northern and central Georgia. Though PoPs decrease somewhat on
Monday, and moreso on Tuesday, there remains the potential for
diurnal convection, with isolated to scattered afternoon/evening
thunderstorms.

&&

.AVIATION...
(12Z TAFS)
Issued at 630 AM EDT Wed Sep 2 2026

Conditions will be largely VFR through the period. Patches of
fog/mist may reduce visibilities to 5SM in portions of east-
central GA, including MCN, until 13Z. A VFR cu field around
050-060 is expected this afternoons. An isolated shower or storm
cannot be ruled out this afternoon, but chances are too low to
warrant mention at any TAF site. Winds will be light and variable
to start the morning, becoming NE at 4-7 kts by 15-16Z and
shifting to E around 20Z.

//ATL Confidence...12Z Update...
High confidence on all elements.

King

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          97  73  96  73 /  10   0   0   0
Atlanta         96  76  95  75 /  10   0   0   0
Blairsville     91  70  90  68 /  30  10  20   0
Cartersville    98  75  97  74 /  10   0   0   0
Columbus        96  75  96  75 /  10  10  10  10
Gainesville     96  74  95  74 /  10   0   0   0
Macon           95  73  95  73 /  10   0  10   0
Rome            98  74  98  73 /  10   0   0   0
Peachtree City  95  73  95  72 /  10   0   0   0
Vidalia         94  73  93  74 /  10   0  30   0

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
Heat Advisory from 1 PM this afternoon to 8 PM EDT this evening
for GAZ001>005-011-012-019-020-030.

&&

$$

SHORT TERM...King
LONG TERM....CRS
AVIATION...King