476 
FXUS62 KFFC 291145 AAA
AFDFFC

Area Forecast Discussion...UPDATED
National Weather Service Peachtree City GA
745 AM EDT Fri Oct 29 2021

.UPDATE...
For 12z TAFs/Aviation.

&&

.PREV DISCUSSION... /Issued 429 AM EDT Fri Oct 29 2021/ 

SHORT TERM /Today through Saturday/...
Vertically-stacked/closed low pressure system currently centered 
around the TN/MS/AL border will continue to drift east through the 
day. Low clouds and fog exist early this morning within "wedge zone" 
over northeast GA with a few showers around. Temperatures are 
generally in the 50s across the area.

A rather raw day expected across much of the area today with the 
approaching low pressure system. High temperatures for many 
locations (especially north GA) will likely occur sometime this 
morning, with temps steady or slowly falling during the afternoon as 
the influence of the upr low/cold core move overhead. The warmest 
conditions will be across our southeast zones of middle GA where 
temps should warm to mid-upr 60s today. Winds in this area could 
gust 15-25 mph at times from the SW but expect to remain below Wind 
Advisory criteria.

Scattered to numerous showers can also be expected given the dynamic 
nature of the system and just a bit of daytime heating creating some 
marginal low to mid-lvl lapse rates. Not expecting any storms today 
but isolated/brief periods of moderate to locally heavy rain is 
possible.

Tonight into Saturday, we become positioned on the backside of this 
broadening storm system with more of the same -- low clouds and 
scattered showers continuing to impact the area. Cool conditions 
will also persist with little diurnal swing in temperatures (maybe a 
10F degree rise on Sat). Higher-res models showing an upr lvl 
wave/impulse diving down the backside of the trough on Saturday 
which should support scattered showers. Bumped POPs up a little from 
previous fcst given this trend.

DJN.83

LONG TERM /Saturday Night through Thursday/...
In the wake of the short term upper low, zonal flow sets up over
the southern US. Latest extended models show increasing moisture
over north Georgia by Tuesday afternoon as upper level pattern
amplifies. For now have kept grids dry through Tuesday, continuing
slight chance to chance PoPs Wednesday and Thursday. Extended
models differ somewhat in how this next system progresses,
with the GFS's wet solution continuing rain through Friday, and
the ECWMF ending rain late Thursday but bringing another low
pressure system in on Saturday.

Cooler than normal start to the extended period will not last,
with seasonal norms by the end of the week.

31

&&

.AVIATION...
12Z Update...
MVFR to IFR ceilings prevail from ATL to AHN with generally VFR
conditions across middle GA. Short-lived showers within pronounced
southwest flow will affect all sites through the day but left VCSH
in due to timing/duration uncertainty. Better push of moisture and
energy with upper level system approaching this evening. Outside
of any rain, ceilings will lower to IFR and eventually LIFR
tonight as the flow becomes more west-northwest behind system. 

//ATL Confidence...12Z Update...
Medium to high all elements,

DJN.83

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          56  48  60  49 /  40  30  30   0 
Atlanta         55  49  58  50 /  50  40  40   0 
Blairsville     51  43  55  45 /  80  50  60  20 
Cartersville    54  48  58  49 /  70  50  60   0 
Columbus        60  51  61  50 /  30  20  20   0 
Gainesville     53  48  57  50 /  60  40  50   5 
Macon           62  50  63  49 /  10  10  20   0 
Rome            54  50  60  49 /  70  60  70   5 
Peachtree City  55  48  59  48 /  50  40  40   0 
Vidalia         66  50  65  51 /   5   5   5   0 

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

SHORT TERM...DJN.83
LONG TERM....31
AVIATION...DJN.83