National Weather Service Weather Forecast Office

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

000
FXUS62 KFFC 221851
AFDFFC

Area Forecast Discussion
National Weather Service Peachtree City GA
251 PM EDT Mon Apr 22 2024


...Afternoon Area Forecast Discussion...

.SHORT TERM...
(This afternoon through Tuesday)
Issued at 239 PM EDT Mon Apr 22 2024

Surface high pressure has settled overhead, bringing mostly sunny,
cool, and dry conditions this afternoon. As winds settle to near
calm overnight, radiational cooling will be maximized amid clear
skies. As such, I did deviate a bit from straight NBM and blended
with NBM10 for tonight`s temperatures which will likely be the
coldest temperatures of the week for most areas. Lows will range
from the mid 30s in far north Georgia to lower 40s in Middle
Georgia. Though some patchy frost will be possible elsewhere in
north Georgia, more sustained frost development is most likely again
in Fannin, Union, and Towns counties. A Frost Advisory has again
been issued for these areas for early Tuesday morning.

On Tuesday, the center of the surface high will begin to slide to
the southeast, and flow aloft will transition from northwest flow to
become more zonal. With southerly low level flow returning, high
temperatures on Tuesday will rebound back toward normal, reaching
the low to mid 70s areawide. Finally, dewpoints were mixed lower
than straight NBM tomorrow afternoon. A few areas in central Georgia
could approach borderline Fire Danger minimum relative humidity
criteria tomorrow afternoon as a result but may remain just above
thresholds.

RW

&&

.LONG TERM...
(Wednesday morning through next Sunday)
Issued at 239 PM EDT Mon Apr 22 2024

The forecast for the extended period remains on track, with only
minor changes made from the previous forecast. A wedge of high
pressure is still anticipated to develop over portions of
north Georgia by Friday, which will inhibit the warming trend
ongoing elsewhere across the forecast area. At this time, PoPs
through the weekend are limited to 20 percent or less, especially
with the frontal system late in the period trending slower, with a
later arrival time of showers and thunderstorms. The previous
discussion follows...

.PREVIOUS DISCUSSION...

Highlights:

-Mostly dry conditions and gradual warming can be expected through
the period.

-Rain may return to portions of North GA this weekend.

Mostly dry conditions continue at the start of the long term period
as surface high pressure remains situated across the Southeast.
Quasi zonal flow aloft will act to usher a few weak disturbances
through the region Wednesday through Saturday. The first will be
accompanied by a weak frontal boundary and will track across the
Great Lakes Region around mid- week. Guidance largely keeps the
forecast area dry as most of the upper level support stays to our
north. Though would not be surprised if portions North GA see some
sprinkles/light rain in addition to increased cloud cover on
Wednesday and Thursday as the front sags southward. Also during
this time, high pressure starts to slide offshore with a wedge
eventually developing from the northeast. Heading into Friday,
long term guidance indicates another system developing east of the
Rockies and ejecting northeast across the Central Plains. As this
occurs flow aloft becomes more northwesterly as ridging builds
across the Central U.S. At the surface, a wedge will become more
prominent across the northeast and flow at the lowest levels
begins to take on more of a southerly component. This will result
in gradual moisture return in the way of increasing cloud cover
and potentially some rain by the weekend. While PoPs through
Sunday remain less than 20%, depending on the track of Friday`s
system, any moisture associated with it could interact with the
wedge this weekend potentially resulting in some light rain across
the North.

Wednesday morning will be the coolest morning in the long term
period with forecast lows in the mid 40s to low 50s. Forecast low
temperatures become much more mild closer to the weekend (lows in
the low 60s). Forecast high temperatures will generally range from
the 70s to low 80s. Though with the wedge developing by late week,
temperatures within the wedge (northeast GA) may be slightly cooler.

07

&&

.AVIATION...
(18Z TAFS)
Issued at 108 PM EDT Mon Apr 22 2024

VFR conditions will prevail through the TAF period. FEW/SCT cu in
the 4-7 kft range this afternoon will dissipate after 00Z with
clear skies thereafter. Wind direction is in the process of
transitioning back to NW for ATL area sites and will remain NW
through the afternoon at 4-8 kts. Near calm winds overnight will
increase to 4-8 kts from the SW after 14Z Tuesday.

//ATL Confidence...18Z Update...
High confidence.

RW

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          41  73  49  76 /   0   0   0  10
Atlanta         44  73  52  75 /   0   0   0  10
Blairsville     36  70  47  69 /   0   0  10  10
Cartersville    37  74  48  73 /   0   0   0  10
Columbus        45  75  50  80 /   0   0   0  10
Gainesville     41  72  51  73 /   0   0   0  10
Macon           43  75  48  79 /   0   0   0  10
Rome            37  75  49  73 /   0   0   0  10
Peachtree City  40  74  48  77 /   0   0   0  10
Vidalia         46  75  51  81 /   0   0   0   0

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
Frost Advisory from 4 AM to 9 AM EDT Tuesday for GAZ006-008-009.

&&

$$

SHORT TERM...RW
LONG TERM....07
AVIATION...RW