565
FXUS62 KFFC 191746
AFDFFC

Area Forecast Discussion
National Weather Service Peachtree City GA
146 PM EDT Sat Sep 19 2026



...New 18Z Aviation Discussion...

.KEY MESSAGES...

  - Unseasonably warm conditions will continue into the beginning
    of the work week. Heat index values will peak in the upper 90s
    to mid 100s Today and Sunday.

  - Continued increased moisture across the region will keep
    precipitation chances elevated through the end of the week.

  - Marginal Risk of isolated strong to severe thunderstorms in
    the short term with strong gusty winds being the primary
    threat.

&&

.SHORT TERM...
(Today through Sunday)
Issued at 329 AM EDT Sat Sep 19 2026

High pressure wedge/ridge continue to weaken and moisture pushes
SW down the eastern seaboard. This increased moisture combined
with high temps in the lower to middle 90s will keep precip
chances elevated through the weekend. A weak backdoor cold front
along the NC/SC border will keep moving SW and push into east GA
this afternoon. A decent amount of low to mid level moisture will
accompany this boundary as Dewpoints expected in the 70s across
North and Central GA Today. Combined with an axis of moderate
instability we will see scattered to numerous showers and
thunderstorms this afternoon and evening. Low level lapse rates
expected to become fairly steep again this afternoon so looks like
the greatest threat from any storms that develop will be strong
gusty winds again. We will also see frequent lightning strikes and
periods of heavy rain.

Moisture continues to increase from the NE through the beginning
of the work week keeping PoPs in the scattered range (30-50%).
Temps also stay in the 90s through the short term so a similar
threat of severe storms also continues. The current general and
marginal risk areas of severe storms from SPC look good across the
region.

&&

.LONG TERM...
(Sunday night through Friday)
Issued at 329 AM EDT Sat Sep 19 2026

The ridge is finally expected to break down Sunday night into
Monday as another front approaches from the Mid MS river valley.
Isolated thunderstorms become more widespread beginning Monday
afternoon. We`ll see storm chances between 50% and 75% through
Tuesday before another ridge turns the flow more NW and we get cut
off from the Gulf moisture towards late part of the work week.

This will help to moderate temps down to the upper 80s and low 90s
by Wednesday and settle into the mid to low 80s towards the end of
next week as the dry air clears out afternoon convection chances.
Low Temps will drop back into 60s Wednesday night into Thursday and
we`ll get a pleasant taste of fall.

&&

.AVIATION...
(18Z TAFS)
Issued at 131 PM EDT Sat Sep 19 2026

VFR to start TAF period. Primary impact this afternoon and evening
will be TSRA chances across all sites through at least 02Z. Winds
will remain to the east side in metro including KATL but light at
3-7 kts. Some impacts from IFR cigs possible at metro sites, AHN,
and MCN during early morning hours. If confidence increases in
these, TEMPO with BKN IFR may be introduced in future TAF
issuances.


//ATL Confidence...18Z Update...

Medium overnight cigs, high all others.

Lusk

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          93  70  90  69 /  30  50  20  10
Atlanta         94  72  91  72 /  40  50  20  10
Blairsville     88  64  85  63 /  50  20  60  20
Cartersville    96  71  93  70 /  30  20  20  10
Columbus        96  73  93  72 /  50  30  20  20
Gainesville     92  70  89  70 /  40  40  30  20
Macon           95  71  92  71 /  40  40  20  20
Rome            97  70  94  69 /  30  10  20  10
Peachtree City  95  70  92  69 /  50  50  20  10
Vidalia         93  72  91  72 /  40  30  20  10

&&

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

$$

SHORT TERM...01
LONG TERM....Vaughn
AVIATION...Lusk