North Charleston, South Carolina 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

846
FXUS62 KCHS 272357
AFDCHS

Area Forecast Discussion
National Weather Service Charleston SC
757 PM EDT Tue Oct 27 2026

.WHAT HAS CHANGED...
Aviation section has been updated.

&&

.KEY MESSAGES...
- 1) A multi-day coastal flooding event will slowly diminish
  through the remainder of this week.

- 2) Sustained northeast winds will lead to a High Risk for rip
  currents along our South Carolina and Georgia beaches through
  Thursday.

- 3) Dry and warming conditions will continue through the week before
  rain chances increase late weekend.

&&

.DISCUSSION...
.KEY MESSAGE 1: A multi-day coastal flooding event will slowly
diminish through the remainder of this week.

The full moon was on 10/26, while the lunar perigee will be on
10/28. For this reason, the astronomical tides will be trending
lower the rest of this week, with the morning/early afternoon
high tide being the higher of the two tide cycles. Additionally,
northeasterly winds are expected to gradually ease, especially
towards the end of this week. This will also cause tidal
departures to lower.

Charleston Tide Gauge: Moderate coastal flooding is forecasted
with the Wednesday and Thursday morning high tide cycles,
followed by minor coastal flooding Friday, and maybe even
Saturday. Coastal Flood Advisories will be needed.

Fort Pulaski Tide Gauge: Minor coastal flooding is forecasted
with the Wednesday morning high tide. A Coastal Flood Advisory
will be needed.

KEY MESSAGE 2: Sustained northeast winds will lead to a High
Risk for rip currents along our South Carolina and Georgia
beaches through Thursday.

The combination of sustained, gusty northeast winds, persistent
long-period swell, and continuous wave action will support
dangerous rip currents along our beaches. A High Risk for rip
currents is in place through Thursday. This enhanced risk could
continue through Saturday, October 31, which marks the end of
the 2026 surf season and the final routine issuance of the Surf
Zone Forecast.

.KEY MESSAGE 3: Dry and warming conditions will continue through the
week before rain chances increase late weekend.

High pressure will dominate at the surface through the end of the
week while upper-level ridging prevails over the Deep South. The
high pressure at the surface and the upper-level ridging will yield
a dry forecast through the remainder of the week. Temperatures will
steadily warm into the weekend, with highs pushing 80 away from the
coastline by Friday. Overnight lows initially in the 50s will warm
into the 60s.

A shift in the synoptic pattern is expected this weekend as the high
pressure breaks down and a shortwave trough aloft ripples across the
Southeast/Mid-Atlantic states this weekend. Rain/thunderstorm
chances will increase this weekend and into early next week
associated with this upper level feature.

&&

.AVIATION /00Z WEDNESDAY THROUGH SUNDAY/...
00Z TAFs: Light north-northeasterly flow should continue overnight,
then becoming breezy in the late morning/early afternoon with
gusts up 20 kts possible. Expect winds to ease back after 20-21Z.

Extended Aviation Outlook: Breezy north-northeast winds are
expected at KCHS/KJZI/KSAV each afternoon this week.

&&

.MARINE...
Rest of Today and Tonight: A tight pressure gradient persists
between high pressure wedged inland to the north and weak low
pressure near the Bahamas. Elevated winds and seas will continue
through tonight, maintaining Small Craft Advisories across all
nearshore waters out 20 nm (outside the Charleston Harbor) and
offshore GA waters out 60 nm. Expect north-northeast wind gusts of
25 to 30 kt, nearshore seas of 4 to 7 ft, and offshore seas of 7 to
10 ft (highest across Georgia waters).

Extended Marine: The persistent wedge of High pressure inland will
maintain elevated NE winds and seas with little improvement
through Thursday night. As the gradient eases on Friday, both
winds and seas will start to trend lower. The long-duration
Small Craft Advisories should start to expire on Friday and
Saturday, first for the waters within 20 nm and then the GA
waters for 20-60 nm.

&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...High Risk for Rip Currents through Wednesday evening for GAZ217-219-
     239-241.
SC...High Risk for Rip Currents through Wednesday evening for SCZ148>151.
MARINE...Small Craft Advisory until 2 PM EDT Friday for AMZ360.
     Small Craft Advisory until 8 PM EDT Friday for AMZ362-364.
     Small Craft Advisory until 8 AM EDT Saturday for AMZ384.

&&

$$