Toccoa Falls, Georgia Weather Forecast Discussion

421
FXUS62 KGSP 101750
AFDGSP
Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
150 PM EDT Wed Sep 10 2025
.SYNOPSIS...
Dry high pressure will persist over the region through this weekend.
A gradual warming trend will begin on Thursday and continue into
early next week as an upper trough moves off the East Coast and
an upper ridge moves in from the west.  Dry weather will continue
at least through the weekend.
&&
.NEAR TERM /THROUGH THURSDAY/...
As of 1206 PM Wednesday: An upper trough will pivot from the Ohio
Valley into the Appalachians tonight through tomorrow. At the
surface, a massive high will slowly slide across southeast Canada
with ridging extending down the Appalachians with a continued supply
of dry air within a northerly surface flow regime. The presence of
dry air will keep the forecast quiet through the period with no
areas of concern. Another bout of mountain valley fog is likely
overnight into the early morning hours. Otherwise, a gradual warming
trend will continue with both overnight lows and afternoon highs
trending a couple degrees warmer compared to today. Forecast
soundings also depict fairly deep mixing up to 800mb which will once
again support efficient mixing out of afternoon dewpoints.
&&
.SHORT TERM /THURSDAY NIGHT THROUGH SATURDAY/...
As of 132 PM EDT Wednesday: Closed upper low will shift over
Atlantic Canada Thursday night into Friday before shifting over
the north Atlantic by the weekend. Leftover troughiness will remain
overhead Thursday night before gradually shifting east Friday and
eventually offshore by Saturday. Weak surface high will linger
across the East Coast through the period, allowing for dry, light
northeasterly flow to filter into the CWFA through the period. Dry
sensible weather conditions will prevail through the period as
a result. Afternoon highs will run a couple degrees below normal
thanks to cool-ish thicknesses remaining stubborn, while overnight
lows drop ~5 degrees below normal with decent radiational cooling
conditions in place.
&&
.LONG TERM /SATURDAY NIGHT THROUGH TUESDAY/...
As of 149 PM EDT Wednesday: A weak backdoor front will slip through
area the area Saturday night into Sunday, but will at most provide
some cloud cover and a wind shift. Otherwise, the upper pattern
diverges slightly closer to the end of the period as there is
some support for a closed upper low developing somewhere in the
eastern CONUS, with more consensus that this will occur further
into the northeastern CONUS. Thus, the latest forecast run has
trended drier for early next week. Temperatures will uptick to
near-normal through the weekend, with some potential of climbing
a few ticks above normal by the end of the forecast period.
&&
.AVIATION /18Z WEDNESDAY THROUGH MONDAY/...
At KCLT and elsewhere: VFR conditions will prevail at most terminals
through the TAF period. A few cumulus have developed this afternoon,
which will dissipate after sunset with periodic high cirrus
streaming overhead. The main focus will be for another bout of
mountain valley fog with expected impacts to visibility and ceiling
at KAVL. Any fog should quickly dissipate after sunrise with a
return to VFR. Otherwise, winds will remain light out of the
north/northeast with a few gusts possible at KAVL through this
afternoon.
Outlook: Dry and mostly VFR through the end of the week, except
for the steadily increasing potential for morning mountain valley
fog and/or low stratus.
&&
.GSP WATCHES/WARNINGS/ADVISORIES...
GA...None.
NC...None.
SC...None.
&&
$$
SYNOPSIS...DEO
NEAR TERM...TW
SHORT TERM...CAC
LONG TERM...CAC
AVIATION...TW

NWS GSP Office Area Forecast Discussion