Area Forecast Discussion
Issued by NWS Atlanta, GA

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FXUS62 KFFC 240814
AFDFFC

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

...Morning Area Forecast Discussion...

.SHORT TERM...
(Today through Thursday)
Issued at 410 AM EDT Wed Apr 24 2024

Key Messages:

 - Slight chance of light showers across portions of Central GA
   this afternoon and again S of Columbus area on Thursday
   associated with a weak front.

A weak shortwave trough will move across the E Great Lakes
and OH Valley region this morning. At the surface, a very weak cold
front will sink S into the area today. Isolated showers may
develop this afternoon along and just ahead of the front as it
continues to sink S across Central GA. Have continued to include
very light QPF amounts in that area along with 15% PoPs. Instability
and dynamic support continue to look meager. It appears there will
be a small amount of CAPE around cloud level (4-6kt) with a narrow
dry layer just above. Confidence is low that much in the way of
measurable rainfall will be realized. High temperatures today will
range from the mid to upper 60s across the NE mountains to near 80
across the S. Low temperatures tonight will range from the mid 40s
across the extreme NE to the upper 50s S and SE of Macon. Some
patchy fog is possible around the Columbus area.

The front will stall over the extreme S tonight and begin to lift
back N as a warm front on Thursday. There may be a few more showers
along this boundary Thursday afternoon across the extreme SW corner
of the County Warning Area, but QPF values are again very low. High
temperatures on Thursday will range from the lower 70s in the
extreme NE to the mid 80s in the extreme SE.

SEC

&&

.LONG TERM...
(Thursday night through Tuesday)
Issued at 410 AM EDT Wed Apr 24 2024

Highlights:

-The next opportunity for any appreciable rainfall now holds off
until early next week.

-Slightly above normal temperatures (excluding far NE GA) through
the period.

At the start of the long term period (Thursday night) a frontal
boundary will be lifting back north as a warm front and while
guidance still largely keeps the forecast area dry would not be
surprised if some light rain showers and/or sprinkles occur
in the vicinity of the front in addition to increased cloud
cover. A wedge of high pressure is still slated to develop across
the northeast on Friday resulting in cooler conditions in
Northeast GA. As noted in the previous forecast discussion the
past few model runs indicates slower timing of the next two closed
low systems that develop east of the Rockies. Thus, any notable
rainfall now looks to hold off until the Monday/Tuesday timeframe.
Midlevel ridging shifts east covering much of the eastern CONUS
Friday into Saturday resulting in the return of southwesterly
flow. At the surface, a wedge will become more prominent across
the northeast and southerly flow continues to increase at the
lowest levels. Gradual moisture return in the way of increasing
cloud cover can be expected through the weekend. Midlevel ridging
holds steady and becomes more amplified extending up the East
Coast through the weekend and into Monday. At the same time, the
second closed low system that develops east of the Rockies will
travel NNE towards the Great Lakes Region with the surface
boundary inching eastward potentially becoming stalled just to our
west. The current forecast has rain chances starting to increase
across NW GA Monday afternoon and persisting through Tuesday.
Details will continue to become defined over the next several
days.

Above normal temperatures are expected through the long term period
for much of Central Georgia. Forecast highs will generally be in the
70s and 80s potentially reaching the upper 80s by early next week.
Cooler temperatures can be expected for areas under the influence of
the CAD wedge (across parts of North GA) particularly on Friday with
forecast highs in the 50s/60s. Forecast lows will range from the 50s
to low 60s through the period.

07

&&

.AVIATION...
(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

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          77  51  78  56 /   0   0   0  10
Atlanta         76  54  79  59 /  10   0   0  10
Blairsville     69  44  74  52 /  10   0   0  10
Cartersville    74  47  79  57 /   0   0   0  10
Columbus        80  57  83  62 /   0   0  10   0
Gainesville     74  51  77  57 /   0   0   0  10
Macon           80  57  82  60 /   0   0   0  10
Rome            74  47  79  57 /   0   0   0  10
Peachtree City  78  52  81  59 /  10   0   0  10
Vidalia         80  59  83  61 /   0   0   0   0

&&

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

$$

SHORT TERM...SEC
LONG TERM....07
AVIATION...SEC


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