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000
FXUS62 KFFC 242339
AFDFFC

Area Forecast Discussion
National Weather Service Peachtree City GA
739 PM EDT Wed Apr 24 2024



...New 00Z Aviation Discussion...

.SHORT TERM...
(This afternoon through Thursday)
Issued at 232 PM EDT Wed Apr 24 2024

Clouds have slowly cleared out south of I20 over the last hour or
so, however over performing morning cloud coverage mean model temps
are 1 to 2 degrees too warm. Clouds have cleared over the last hour
or so, meaning we may still catch up today.

A weak shortwave trough and sfc front slowly move through the area
today bringing isolated light showers across portions of North and
Central GA. Showers should be sparse and light, given the presence
of the SFC high to the northeast. Little to no accumulation is
expected (~0.01").

Highs today and tomorrow will be in the Low to mid 70s north of I-85
and closer to 80 South of I-85. Low tonight and tomorrow night will
hang in the mid to upper 40s and low to mid 50s. The higher
elevations will be several degrees cooler.

High pressure continues to build and move northeastward through
tomorrow, promoting weak wedge development. Models currently
resolve the wedge edge around the ATL metro, however this is likely
under-represented. Winds will be light tomorrow at 0 to 5 mph for
much of the area through the afternoon. Winds should pick up
further from the East as ridging builds to the west.

SM

&&

.LONG TERM...
(Friday morning through next Tuesday)
Issued at 232 PM EDT Wed Apr 24 2024

On Friday, a broad mid-level ridge will settle in over the eastern
CONUS, extending from the northern Gulf  of Mexico into the Great
Lakes region as the long term period begins. A strong (1030+ mb)
surface high pressure will meanwhile move into the New England area,
at which point a CAD wedge will develop along the lee side of the
Appalachians and spread into portions of northeast Georgia. Also at
the surface, the cold front from the short term period will be
lifting northward as a warm front. Mid-range guidance continues to
keep the forecast area dry, but isolated light rain showers and
increased cloud cover could be possible in the vicinity of the
front, particularly in portions of north Georgia where warm air is
lifted over cooler air within the wedge. Speaking of temperatures,
after starting the morning mainly in the mid to upper 50s, diurnal
heating will be limited within the wedge over the course of the day
on Friday. Here, afternoon highs will be limited to the 60s to low
70s, as opposed to upper 70s elsewhere in north Georgia and in the
low to mid 80s in central Georgia.

A low pressure system in the central Great Plains will advance
northeastward Friday into Saturday, riding the north side of this
ridge towards the Great Lakes region. A cold frontal boundary and
associated precipitation are expected to stall out before reaching
the forecast area. The gradual warming trend will continue through
the weekend and in to early next as 1000-500 mb thicknesses increase
under the influence of the ridge. High temperatures will climb a
couple of degrees each day, and will be in the mid to upper 80s
across the majority of the area by Monday afternoon. Southwesterly
flow aloft will also set up on the back side of the ridge axis in
the later part of the weekend, which will also lead to moisture
return and increasing cloud cover in the forecast area. A second low
pressure system will develop along the stalled frontal boundary, and
advance northeastward along roughly the same track as the first on
Sunday into Monday. The advance of the low will help the front
advance eastward towards Georgia, which 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 far north Georgia by
Monday evening, which will advance southward overnight into
Tuesday.

King

&&

.AVIATION...
(00Z TAFS)
Issued at 727 PM EDT Wed Apr 24 2024
Weak frontal boundary moving south through the area this evening.
There is an isolated showers or two with it but no thunderstorms.
These showers are not expected to interfere with any of the TAF
sites. Ceilings have been staying in the VFR range as the front
passes over the observation sites so expecting more of the same
through tonight. Winds are out of the NW and will turn to the NE
just before sunrise. Winds will continue to turn to the E/SE
through the afternoon hours then to the SW around 20z-22z. Wind
speeds are in the 8-12kt range but will diminish to 8kt or less
over the next few hours and stay there through the rest of the
period.


//ATL Confidence...00Z Update...
Confidence high on all elements.

01

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          50  79  56  74 /  10   0   0  10
Atlanta         54  79  60  77 /  10   0   0  10
Blairsville     44  74  52  67 /  10   0   0  20
Cartersville    47  78  57  77 /  10   0   0  10
Columbus        57  84  61  86 /  10   0   0  10
Gainesville     51  77  57  71 /  10   0   0  20
Macon           56  83  59  83 /  10   0   0  10
Rome            47  79  56  78 /  10   0   0  10
Peachtree City  51  81  58  80 /  10   0   0  10
Vidalia         59  83  61  83 /  10   0   0  10

&&

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

$$

SHORT TERM...SM
LONG TERM....King
AVIATION...01