North Charleston, South Carolina 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

612
FXUS62 KCHS 130618
AFDCHS

Area Forecast Discussion
National Weather Service Charleston SC
218 AM EDT Fri Mar 13 2026

.WHAT HAS CHANGED...
All Key Messages and sections were updated.

&&

.KEY MESSAGES...
- 1) A strong cold front will bring rain, gusty winds, and the
  possibility of severe thunderstorms on Monday.

- 2) Frost/freeze is possible Monday night and Tuesday night.

&&

.DISCUSSION...
KEY MESSAGE 1: A strong cold front will bring rain, gusty
winds, and the possibility of severe thunderstorms on Monday.

A strong upper trough will move toward the Appalachians Sunday
night and Monday. A warm front will lift north Sunday afternoon
and evening, potentially bringing some showers to the area. A
strong cold front then sweeps through the area Monday afternoon
and evening, bringing a fairly widespread band of showers and
thunderstorms. Total QPF currently looks to be around half an
inch on average. Models show the potential for at least marginal
instability which combined with strong low-level wind fields
could result in some strong to severe thunderstorms.


KEY MESSAGE 2: Frost/freeze is possible Monday night and
Tuesday night.

Following the passage of the cold front Monday evening,
drastically cooler temperatures are expected through the middle
of next week. Monday night and Tuesday night could see freezing
temperatures across the interior portions of SC and GA. Winds
will be too strong for frost Monday night, but Tuesday night we
could see winds relax enough to allow for some frost formation,
potentially closer to the coast where lows are just above
freezing.

&&

.AVIATION /06Z FRIDAY THROUGH TUESDAY/...
13/06z TAF Discussion:
KCHS/KJZI/KSAV: VFR through 14/06z.

Extended Aviation Outlook: Brief flight restrictions are
possible in showers and thunderstorms Sunday through Monday
evening. Gusty winds expected on Monday.

&&

.MARINE...
Through Tonight: Conditions across the coastal waters will
steadily improve today as cold air advection wanes and the
pressure gradient relaxes. The risk for frequent gusts to gale
force has ended across the South Santee River-Edisto Beach
nearshore leg, so the Gale Warning there was downgraded to a
Small Craft Advisory. Gales will linger over the Georgia
offshore waters for a few more hours so that Gale Warning was
extended until 5 AM and will be downgraded to a Small Craft
Advisory then. Otherwise, winds will support Small Craft
Advisory conditions across the remaining nearshore waters this
morning. Expect all nearshore marine headlines to be
discontinued later this morning and the Georgia offshore waters
by early this evening.

Saturday through Wednesday: Strong southerly winds will develop
Sunday night into Monday ahead of a strong cold front. Solid
Small Craft Advisory conditions anticipated, along with the
potential for Gales across the Charleston nearshore waters due
to 35 kt gusts Monday afternoon/evening.

&&

.EQUIPMENT...
The KCLX radar is scheduled for radome panel replacement March
16-19, 2026. The radar will be down during this time. Users are
encouraged to use data from the following nearby radar sites
during the maintenance outage:

KCAE - Columbia, SC
KLTX - Wilmington, NC
KJAX - Jacksonville, FL
KVAX - Moody AFB, GA
KJGX - Robbins AFB, GA

&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...None.
SC...None.
MARINE...Small Craft Advisory until 9 AM EDT this morning for AMZ350-
     352-354.
     Gale Warning until 5 AM EDT early this morning for AMZ374.

&&

$$

JRL/ST