National Weather Service National Headquarters

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

-- Discussion containing changed information from previous version are highlighted. --
000
FXUS62 KFFC 240556
AFDFFC

Area Forecast Discussion
National Weather Service Peachtree City GA
156 AM EDT Wed Apr 24 2024

...New 06Z Aviation Discussion...

.SHORT TERM...
(This evening through Wednesday)
Issued at 310 PM EDT Tue Apr 23 2024

An overall quiet period through the next couple of days. High
temperatures will be in the 70s and around 80 further south. Lows
in the upper 40s to low 50s. Our only feature of interest comes from
a boundary (I struggle to call it a cold front) that moves southward
through the area tomorrow afternoon. A few showers may be possible
along I20 and South, however these will likely be isolated at best.
The problem with this is the stable sfc high which continues to sit
to our east, keeping us drier during the boundary passage, and
suppressing any upward motion. Therefore, have left PoPs spotty and
below 25 percent at its highest.

Fire weather wise, winds may be slightly gusty but overall will
mostly stick to around 10 mph. RH values will remain above any 30
percent, particularly since we should begin moistening tomorrow
afternoon and evening.

SM

&&

.LONG TERM...
(Thursday morning through next Monday)
Issued at 310 PM EDT Tue Apr 23 2024

As the extended period begins on Thursday morning, surface high
pressure will be centered over the Great Lakes region, which will
advance a weakening cold front into central Georgia. Low
temperatures on Thursday morning will be in the upper 40s to low 50s
in north Georgia behind the front, and in the mid to upper 50s ahead
of the front. As the surface high pressure moves away to the east
and a low pressure system develops to the east of the Rockies, the
frontal boundary is expected to lift back to the north as a warm
front on Thursday into Friday. Isolated showers and increased
coverage will be possible in the vicinity of the front, although
widespread rain is not anticipated at this time. High temperatures
on Thursday will range from 0-4 degrees above daily averages, in the
upper 70s in north Georgia and low 80s in central Georgia. As the
aforementioned high pressure sets up over the New England area on
Friday, a CAD wedge is expected to develop along the lee side of the
Appalachians and spread into northeast Georgia. Here, temperatures
are forecast to be cooler and limited to the 60s to low 70s.
Elsewhere across the forecast area, highs on Friday will once again
range from the upper 70s to low 80s.

Friday into Saturday, pronounced mid-level ridging will take hold
over much of the eastern CONUS. Meanwhile, the low pressure system
to the east of the Rockies will advance northeastward, riding the
north side of this ridge towards the Great Lakes region. The cold
frontal boundary and associated precipitation expected to stall out
before reaching the forecast area. The gradual warming trend will
continue through the weekend as 1000-500 mb thicknesses increase
under the influence of the ridge. Southwesterly flow aloft will set
up on the back side of the ridge in the later part of the weekend,
which will also lead to moisture return and increasing cloud cover
in the forecast area through the weekend. A second low pressure
system will advance northeastward along roughly the same track as
the first on Sunday into Monday. While a cold front extending from
the south of the low will bring the next appreciable chance for
showers and thunderstorms to the area, long-term guidance continues
to trend slower with the progression of this system, with
precipitation spreading into north Georgia by Monday afternoon,
spreading southward overnight into Tuesday.

King

&&

.AVIATION...
-- Changed Discussion --
(06Z TAFS)
Issued at 145 AM EDT Wed Apr 24 2024

Forecast remains basically unchanged, with VFR conditions expected
to continue. A very weak frontal boundary will sink S through the
area today, bringing the possibility of isolated light showers,
particularly from the S portion of the Atlanta metro area into
central GA. There is uncertainty whether these showers will
materialize, as there will be minimal dynamic or thermodynamic
support. Some small amount of CAPE will exist around 5kft, but there
may also be a shallow dry layer right above the moisture and lift.
Have opted for PROB30 -SHRA at ATL and FTY with VCSH at PDK, RYY, and
AHN. Cigs should stay above 3kft. Winds will be generally light SW
shifting to NW upon boundary passage, with a few gusts to near 20 kts
possible in the afternoon.

//ATL Confidence...06Z Update...
Medium for shower development, high on all other elements.

SEC
-- End Changed Discussion --

&&

.PRELIMINARY POINT TEMPS/POPS...
-- Changed Discussion --
Athens          50  77  55  73 /   0  10  10  10
Atlanta         54  77  58  75 /  10  10  10  10
Blairsville     44  73  51  64 /   0   0  10  10
Cartersville    48  78  56  75 /  10  10  10  10
Columbus        58  82  61  84 /   0  20  10  10
Gainesville     51  76  56  69 /   0  10  10  10
Macon           57  82  61  81 /  10  10  10  10
Rome            48  78  56  75 /   0  10  10  10
Peachtree City  53  80  58  79 /  20  10  10  10
Vidalia         60  82  61  81 /   0  10  10  10
-- End Changed Discussion --

&&

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

$$

SHORT TERM...SM
LONG TERM....King
AVIATION...SEC