Hiram, Georgia Weather Forecast Discussion

729
FXUS62 KFFC 261056
AFDFFC
Area Forecast Discussion
National Weather Service Peachtree City GA
656 AM EDT Fri Sep 26 2025
...New 12Z Aviation Discussion...
.KEY MESSAGES...
Updated at 653 AM EDT Fri Sep 26 2025
- Scattered showers and thunderstorms possible through Saturday,
   with the highest coverage in the afternoons and evenings.
- High uncertainty for early to mid week due to tricky tropical
   forecast. Impacts, if any, remain unclear at this time.
- Temps in the 70s to low 80s and breezy winds each afternoon
   lead to fall like conditions for most of the upcoming week.
&&
.SHORT TERM...
(Today through Saturday)
Issued at 151 AM EDT Fri Sep 26 2025
A closed mid-level low and associated cold front over the TN
Valley will continue to be the primary driver of weather
conditions across north and central GA through Saturday. Ahead of
these features, that are slowly moving our way, deep mid-level
southwest flow continues to spread above normal moisture across
the area, with PWAT values of 1.5-2". This moisture combined with
large-scale ascent from the troughing will support scattered
showers and thunderstorms again today, with the highest coverage
during the afternoon to early evening hours across central GA.
While the cold front is expected to slowly push through the region
from later on today through early Saturday, the drier airmass
will not push in until we get on the backside of the mid-level low
late Saturday. So, we are expecting another round of isolated to
scattered showers and thunderstorms Saturday afternoon, primarily
across the eastern portions of the area. We could see a few strong
storms each day with gusty winds, frequent lightning, and heavy
rain, but no severe weather is anticipated. With the increased
cloud cover and passing cold front, temperatures will be closer to
normal than recent days, with highs in the low to mid 80s today
and Saturday.
&&
.LONG TERM...
(Saturday night through Thursday)
Issued at 151 AM EDT Fri Sep 26 2025
The main story of the longterm continues to be the tropical
activity in the western Atlantic. TS Humberto has formed over the
western Atlantic and is expected to strengthen over the weekend.
With the strong high pressure over the Atlantic and the deep
positively tilted trough over a majority of the southern CONUS,
Humberto is expected to curve northeastward into the Atlantic
where it will stay away from the eastern seaboard. Now comes
Invest 94L which has an 80% chance of development over the next 48
hours and a 90% chance of development over the next 7 days. NHC
is highlighting that TD Imelda is likely to form late Friday into
the weekend and then potentially strengthen into a TS over the
weekend into early next week. This is when the uncertainty begins.
The models overall are in pretty good agreement in the short term
with Invest 94L pushing northward just west of Humberto. Then is
when the model spread begins. Imelda will be at the mercy of the
cutoff low expected to form over the southeastern CONUS and
Humberto to the east. The spread shows members pulling the system
around the cutoff low and into the US while other members show the
system being pulled out to sea along with Humberto. We are still
about a day away from seeing more certainty when it comes to this
forecast but much of north and central Georgia does look to be in
the area where impacts will be minimal (if any). Northeast/east
Georgia will be the place to watch more as certainty increases
over the next day or so for potential impacts. Regardless it
doesn`t hurt to review any plans you have and as always stay tuned
to the NHC forecast as well as ours.
Other than the tropical system activity temperatures looks to
moderate and give a nice taste of fall into the early week with
the cut off low pushing in colder air. Highs in the mid 70s to low
80s can be expected through the long term with lows approaching
the lower 60s to upper 50s. Wind gusts will also remain elevated
through much of the long term beginning this weekend into early
next week as the pressure gradient between the upper level cutoff
low and the tropical system set up over the area. Gusts currently
remain at 15- 20mph during the afternoons. &&
.AVIATION...
(06Z TAFS)
Issued at 151 AM EDT Fri Sep 26 2025
MVFR to IFR CIGs and VIS have developed at several sites and will
continue through the morning hours. A few sites may temporarily
drop to LIFR CIGs in the hour or two before sunrise. CIGs gradually
improve to high end MVFR or low VFR (2.5-4kft) through the late
morning hours, with SHRA/TSRA possible between 16-02z at all
sites as the main frontal boundary pushes through the area. Winds
will remain light and VRB through this morning, becoming SW to W
4-8kts during the day today.
//ATL Confidence...06Z Update...
Medium confidence on all elements.
07
&&
.AVIATION...
(12Z TAFS)
Issued at 653 AM EDT Fri Sep 26 2025
MVFR to IFR CIGs and VIS at several sites, which will continue
through the morning hours. CIGs gradually improve to high end
MVFR or low VFR (2.5-4kft) through the late morning hours, with
SHRA/TSRA possible between 16-02z at all sites as the main frontal
boundary pushes through the area. Another round of MVFR to IFR
CIGs and VIS develop tonight into Sat AM. Winds will remain light
and VRB through this morning, becoming SW to W 4-8kts during the
day today. Winds go light tonight and then turn NW on Sat.
//ATL Confidence...12Z Update...
Medium confidence on all elements.
Culver
&&
.PRELIMINARY POINT TEMPS/POPS...
Athens          80  66  81  63 /  40  40  40  10
Atlanta         82  66  83  65 /  30  20  20   0
Blairsville     77  60  76  58 /  40  30  50  10
Cartersville    82  63  84  62 /  30  20  20   0
Columbus        85  66  86  64 /  40  20  10   0
Gainesville     81  66  81  63 /  30  30  30  10
Macon           82  66  84  64 /  50  40  30  10
Rome            84  64  84  63 /  30  10  20   0
Peachtree City  82  63  84  63 /  30  20  20   0
Vidalia         86  68  84  67 /  70  70  60  10
&&
.FFC WATCHES/WARNINGS/ADVISORIES...
None.
&&
$$
SHORT TERM...Culver
LONG TERM....Hernandez
AVIATION...Culver

NWS FFC Office Area Forecast Discussion