National Weather Service National Headquarters

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

000
FXUS62 KFFC 031150
AFDFFC

Area Forecast Discussion...Updated for Aviation
National Weather Service Peachtree City GA
645 AM EST Thu Dec 3 2020


.SHORT TERM /Today through Friday/...
The upper ridge currently over the southeast will gradually slide
eastward through the period. We can look for continued dry
conditions through much of the upcoming night. A southern stream
closed upper low will rotate into the lower MS River Valley by
Friday. Meanwhile a surface low will develop over the northern
Gulf and move into GA by the end of the forecast period. Showers
should move into northwest GA after 06z Friday...increasing over the
area through the day. Models move this surface wave rapidly
eastward...but looks like rain should last over our area through
most of the day Friday. Best instability is expected to remain
generally to our south...however have continued with a mention of
slight chance for thunder for Friday afternoon just ahead of the
main wave. Temperatures will be moderating through Friday.

41


.LONG TERM /Friday Night through Wednesday/...
The extended forecast begins with the next rain maker moving
through the state. The closed low center associated with this
system will be centered over along the AL/TN/GA border and will
move NE through Sat morning. As this system moves through there
will be more than enough moisture available for decent warm sector
rainfall out before the cold front sweeps through the state
Friday night. Models are in decent agreement on the timing of this
system but not so much with the rainfall amounts. Since the
models have been consistently showing this system speeding up
over the past few days, leaning more towards the ECMWF solution with
the lesser amounts. Expecting .25 to 1 in of precip from this
next system with some isolated higher amounts across N GA.
Instability looks to be minimal, though some may exist in a thin
band just ahead of the cold front mainly across central GA. For
now only thinking just general thunder storms with with not much
in the way of severe weather.

System exits the state Sat morning with some backside moisture
still hanging around N GA through Sat evening. Much drier air
moves in across the region through Sunday with another weak wave
passing across the state Monday. This next wave right now looks
very weak so only looking for increased cloud cover. May see an
isolated shower or two but for now keeping pops below 20 percent
and not putting any precip in the forecast. High pressure pushes
into the region from the southern MS river valley and keep things
dry through the end of next week.

01


&&

.AVIATION...
12Z Update...
VFR through this evening with patchy mid/high clouds. Ceilings
will begin to lower to MVFR around sunrise Friday...and into IFR
by mid morning with developing showers. Winds should be east to
southeast 6 to 8kts through the period.

//ATL Confidence...12Z Update...
Medium to high on timing of lower ceilings.
High on all else.

41

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          60  41  59  42 /   0  20  80  60
Atlanta         57  43  59  39 /   0  20  80  40
Blairsville     55  37  51  36 /   0  30  90  60
Cartersville    57  42  57  37 /   5  30  80  30
Columbus        61  46  65  41 /   0  20  80  30
Gainesville     56  41  53  40 /   0  20  80  50
Macon           63  44  67  42 /   0  10  80  40
Rome            58  40  56  38 /   5  40  80  30
Peachtree City  58  42  61  38 /   0  20  80  30
Vidalia         64  49  70  47 /   5  10  50  40

&&

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

$$

SHORT TERM...41
LONG TERM....01
AVIATION...41