North Charleston, South Carolina 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

040
FXUS62 KCHS 130659
AFDCHS

Area Forecast Discussion
National Weather Service Charleston SC
159 AM EST Fri Nov 13 2026

.WHAT HAS CHANGED...
All sections have been updated.

&&

.KEY MESSAGES...
- 1) Dry conditions with gusty winds this afternoon.

- 2) Freeze Watch in effect for early Sunday morning with
  frost/freeze conditions possible through Monday morning.

&&

.DISCUSSION...
KEY MESSAGE 1: Dry conditions with gusty winds this afternoon.

Dry high pressure will build across the region today, continuing to
usher in a cooler airmass behind a cold front well offshore. Cold
air advection should help promote low-lvl mixing, taping into wind
fields that support westerly sfc winds gusting upwards to 15-25 mph
this afternoon and favor a slight mixing out of sfc dewpts across
inland tier counties (Dorchester County, SC to Tattnall County, GA)
suggesting RH levels dipping into the mid 30s for a few hours. This
could pose a limited fire weather risk for a few hours this afternoon
given continued drought/dry fuels, but weather conditions should
fall just short of those needed for a Fire Danger Statement across
the far interior today.


KEY MESSAGE 2: Freeze Watch in effect for early Sunday morning
with frost/freeze conditions possible through Monday morning.

As cold air continues to advect into the region in the wake of the
frontal passage, high pressure will continue to build into the
region. Expect this setup to yield dry, breezy conditions through
tonight and into Saturday morning. Overnight lows will dip into the
mid to upper 30s across the inland areas with low 40s along the
coastal corridor. The elevated winds combined with marginal
temperatures will limit frost formation across the region and opted
out of issuing a Frost Advisory for tonight/Saturday morning.

However, the pressure gradient should weaken on Saturday afternoon
as the center of high pressure shifts across the Southeast and this
will yield light to calm winds through Saturday night/Sunday
morning. Alongside this, clear skies will allow for good radiational
cooling to take place overnight with low temperatures dropping into
the upper 20s to low 30s across the inland counties and upper 30s to
low 40s along the coastal counties. Therefore, there was a good
amount of confidence to issue a Freeze Watch for early Sunday
morning across the interior southeast Georgia and southeast South
Carolina counties. This will likely be upgraded to a Freeze Warning
with later forecast updates. The forecast notes widespread to areas
of frost on early Sunday morning to account for this.

There could be another chance of frost/freeze conditions across the
inland counties through early next week as the cool air mass lingers
across the region.

&&

.AVIATION /06Z FRIDAY THROUGH TUESDAY/...
VFR conditions are expected at CHS/JZI/SAV terminals through 06Z
Saturday. However, west/west-northwest winds will become gusty at
all terminals this afternoon, generally up to 15-18 kt between 18Z-
23Z today.

Extended Aviation Outlook: Expect VFR conditions to prevail.

&&

.MARINE...
Through Daybreak: Cold air advection associated with building high
pressure will continue to support gusty westerly winds across local
waters prior to daybreak. Latest marine obs continue to support
Small Craft Advisories across nearshore waters for the next 1-2
hours and across offshore Georgia waters through 7 AM.

Today through Tuesday: A brief period of weakening winds is expected
across local waters after sunrise today, with conditions expected to
remain below Small Craft Advisory levels during daylight hours.
However, a second episode of notable cold air advection and
tightening of the pressure gradient is likely across coastal waters
tonight with west-northwest winds gusting to around 25 kt across
offshore Georgia waters into daybreak Saturday. Seas could also
build up to 4-6 ft across this area. A Small Craft Advisory
will likely be needed. High pressure will then continue to build
across the region into early next week with wind/sea conditions
remaining below Small Craft Advisory levels through daylight
hours Monday. The next round of Small Craft Advisories could
arrive across a bulk of local waters next Tuesday.

&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...Freeze Watch from late Saturday night through Sunday morning
     for GAZ087-088-099>101-114-115.
SC...Freeze Watch from late Saturday night through Sunday morning
     for SCZ040-042>045-147.
MARINE...Small Craft Advisory until 3 AM EST early this morning for
     AMZ360-362-364.
     Small Craft Advisory until 7 AM EST this morning for AMZ384.

&&

$$