Anderson, South Carolina 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

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FXUS62 KGSP 120202
AFDGSP

Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
1002 PM EDT Fri Apr 11 2025

.SYNOPSIS...
Scattered showers and thunderstorms continue through this evening.
Dry conditions return this weekend and continue into Monday. Showers
will be possible across the mountains Monday night as another fast
moving systems passes through the region. Thereafter, dry weather
continues into late week.

&&

.NEAR TERM /THROUGH SATURDAY/...
As of 1000 PM Friday: Anomalous deep upper height/thermal trough
will continue to progress across the region tonight, with the axis
of the trough expected to be east of our forecast area by 12Z
Saturday. Showers have just about come to an end, and should be gone
by midnight. Gusty winds will continue across the mountains with an
occasional low end gust elsewhere. Showers are forecast to linger in
NW flow/upslope regime near the TN/NC border. Temperatures above
~5000 feet are already cold enough for some wintry precip...and
accumulations will be possible at those elevations through tonight
as the event transitions to more of a traditional upslope event.
However, ingredients/thermal profiles will not be conducive to
anything more than minor accums. Min temps are expected to generally
be a category or so below normal.

Dee NNW flow becomes established in the wake of the trough tomorrow,
with much drier, much calmer, and much sunnier weather following.
Although gusty winds will linger across the mountains. Max temps
will again be 5-10 degrees below normal, while much lower dewpoints
are expected to result in minimum RH of 25-30%.

&&

.SHORT TERM /SATURDAY NIGHT THROUGH MONDAY/...
As of 215 PM EDT Friday: Deep trough axis should be east of the
CFWA by the start of the forecast period as surface high sets
up shop over the southeastern CONUS Saturday night, leading
to good radiational cooling conditions. As a result, a freeze
watch is likely across the portions of the NC mountains where
the frost/freeze program has begun. Can`t rule out areas of frost
either outside of the mountains, which could also lead to short-fuse
Frost Advisory before Sunday morning. Overnight lows will run ~10
degrees below normal under mostly clear skies. Gradual airmass
modification will take place Sunday as heights recover and upper
ridging begins to build in from the west. Afternoon highs on Sunday
should rebound but remain a few ticks below normal. Surface high
shifts offshore Sunday night, ahead of the next frontal system and
allows for weak southwesterly low-level WAA to filter in across
the CFWA. In this case, overnight lows Sunday should end up at or
slightly above normal.

&&

.LONG TERM /MONDAY NIGHT THROUGH FRIDAY/...
As of 235 PM EDT Friday: Amplified synoptic pattern begins to
unfold during the extended forecast period as an upper low slips
across the Northern Great Plains into the Upper Great Lakes Monday
into Tuesday. An attendant frontal boundary will push into the
CFWA Monday night into Tuesday, with showers making it to the
mountains, but not much further than the NC/TN border. Monday
is the warmest day with highs in the low to mid 80s east of the
mountains and in the major mountain valleys as WAA maximizes ahead
of the front. The upper trough axis will push east of the area by
midweek as a second shortwave pushes another frontal boundary to
the area by the end of the workweek into next weekend with rain
chances returning. Temperatures will be within a few degrees of
normal following the cold front Tuesday and should remain this
way through the end of the forecast period.

&&

.AVIATION /02Z SATURDAY THROUGH WEDNESDAY/...
At KCLT and elsewhere: TSRA have moved south of the terminals this
evening but isolated SHRA continue until midnight or so. Have VCSH
for these as no significant restrictions are expected even if they
move over an airfield. Low VFR cigs scatter out by then as well.
KAVL the exception where MVFR cigs develop this evening and continue
overnight. N to NW wind expected this evening and overnight with
gusty winds continuing at KAVL. The low clouds scatter out at KAVL
by 13Z or so but gusty northerly winds continue through the day. Any
lingering low clouds elsewhere dissipate quickly during the morning.
Northerly wind continues through the day as well. KAND the exception
here where winds turn westerly by noon then back NW late in the day.

Outlook: Dry high pressure lingers through Monday. Another cold
front may bring scattered showers and associated restrictions on
Tuesday. Dry high pressure returns for Wednesday.

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...None.
NC...Freeze Watch from late Saturday night through Sunday morning
     for NCZ048-051>053-058-059-062>065.
SC...None.

&&

$$

SYNOPSIS...CAC
NEAR TERM...JDL/RWH
SHORT TERM...CAC
LONG TERM...CAC
AVIATION...RWH