North Charleston, South Carolina 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

604
FXUS62 KCHS 011138
AFDCHS

Area Forecast Discussion
National Weather Service Charleston SC
638 AM EST Sun Feb 1 2026

.WHAT HAS CHANGED...
Winter weather headlines have been updated. Aviation discussion
updated for the 12z TAFs

&&

.KEY MESSAGES...
- 1) The risk for accumulating snows has ended. Hazardous
  conditions persist.

- 2) Extremely cold temperatures are expected this weekend into
  early next week. Historic bitter cold will continue this
  morning.

- 3) A cold front will bring rain showers to the South Carolina
  Lowcountry and southeast Georgia late Tuesday night into
  Wednesday night.

&&

.DISCUSSION...
KEY MESSAGE 1: The risk for accumulating snows has ended.
Hazardous conditions persist.

The risk for accumulating snow has ended, but DOT webcams and
Warning Point reports indicate hazardous conditions remain with
snow covered roads in many places north of I-16. The Winter
Storm Warning has been downgraded to a Winter Weather Advisory
and is in effect until 10 AM. The advisory covers areas north of
I-16 as well as Evans, Bryan and Chatham Counties.

Lake Moultrie: Windy conditions persist on Lake Moultrie this
morning with winds generally 25 kt with gusts 35 kt. Winds will
slowly diminish through daybreak and should drop below Lake Wind
Advisory criteria by late morning. There is a continued risk
some freezing spray over the lake itself and along southern and
southeastern lakeshore, including Pinopolis and Short Stay
through daybreak. Some icing of piers, docks and structures
along the lake could occur.


KEY MESSAGE 2: Extremely cold temperatures are expected this
weekend into early next week. Historic bitter cold will continue
this morning.

This morning single digit wind chills are common across the
region this morning as temperatures fall into the teens. Minimum
wind chills of 0-5 above zero are expected and an Extreme Cold
Warning remains in place for all of the South Carolina
Lowcountry and Southeast Georgia. For tonight, it will be warmer
with lows dropping into the lower-mid teens inland to the mid-
upper 20s closer to the coast. A combination of low temperatures
and lingering wind chills will support a Cold Weather Advisory
for all areas tonight into Monday morning.

Monday night, very light southwest winds are expected. Skies
will start out clear in the evening, with clouds gradually
increasing from south to north overnight. These clouds may limit
some of the radiational cooling, mainly towards daybreak
Tuesday. Lows should range from the lower 20s inland to near
freezing at/near the beaches. Since winds will be very light,
wind chills aren`t forecasted to drop to 20 degrees or lower
across most of our area. Therefore, we probably won`t need a
Cold Weather Advisory. Tuesday, temperatures moderate with highs
ranging from near 50 degrees near the Santee River to the lower
60s near the Altamaha River.


KEY MESSAGE 3: A cold front will bring rain showers to the
South Carolina Lowcountry and southeast Georgia late Tuesday
night into Wednesday night.

The mid-levels Tuesday night will consist of a positively
tilted trough axis stretching roughly from the Great Lakes
region down into the Southern Plains. It`ll gradually shift
eastward, becoming located from the New England States down into
the Deep South by Wednesday night. At the surface, High
pressure off the Southeast U.S. Tuesday night will shift further
offshore, while a cold front approaches from the west and
northwest. There will be a decent plume of moisture ahead of the
front, with PWATs peaking ~1.15" on Wednesday. This is close to
the 90% mark for CHS, per SPC Sounding Climatology. Models are
in fairly good agreement having rain showers overspreading our
far inland areas late Tuesday night, then making it to the coast
Wednesday morning. The highest POPs across our entire area are
generally Wednesday afternoon. The cold front will quickly move
through our area Wednesday night, with rain showers gradually
dissipating from west to east. By daybreak Thursday, there could
be a few isolated rain showers near the coast that will quickly
move offshore. Storm total QPF should be in the 0.1-0.25"
range. Temperatures are expected to stay warm enough at the
surface and higher up to only generate rain showers. Low
temperatures Tuesday night will be in the upper 30s to mid 40s.
Highs Wednesday will range from the mid 50s to the lower 60s.
Low temperatures Wednesday night will generally be in the mid to
upper 30s, mainly reached towards daybreak Thursday.

&&

.AVIATION /12Z SUNDAY THROUGH THURSDAY/...
01/12z TAF Discussion:
KCHS/KJZI/KSAV: VFR conditions will prevail through 02/12z.
Gusty winds this morning will diminish.

Extended Aviation Outlook: A cold front may bring flight
restrictions Wednesday, mainly due to rain showers.

&&

.MARINE...
Gale Warning in the Charleston Harbor has been extended until 10
AM.

Through Tonight: Solid gales are being observed across all
waters this morning and a Gale Warning remains in place.
Conditions will improve below gales after daybreak in the
Charleston Harbor, late morning for the all nearshore waters and
early afternoon for the Georgia offshore waters. Small Craft
Advisories will likely be needed once the Gale Warnings are
lowered.

Monday Night through Thursday: Surface High pressure will be
over FL on Tuesday, shifting offshore Tuesday night into
Wednesday. A cold front will approach from the west on
Wednesday, quickly moving through and then offshore Wednesday
night. High pressure builds in from the distant west on
Thursday. Small Craft Advisories will be needed for portions of
our waters Wednesday night into Thursday.

&&

.CLIMATE...
Record Low Temperatures:

February 1:
KCHS: 21/1977
KCXM: 23/1900
KSAV: 23/1977

February 2:
KCHS: 19/1980
KCXM: 17/1917
KSAV: 18/1917

Record Low Maximum Temperatures:

February 1:
KCHS: 38/1980
KCXM: 36/1900
KSAV: 38/1900

February 2:
KCHS: 38/1980
KCXM: 38/1898
KSAV: 38/1951

Record Snowfall:

0.7" of snow was observed at KCHS for 01/31. This breaks the
previous record of 0.6" set in 1977.

February 1:
KCHS: no record established
KSAV: no record established

&&

.EQUIPMENT...
The KCLX radar is operational, but could go down at any time.
Additional repairs are needed.

&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...Extreme Cold Warning until 1 PM EST this afternoon for GAZ087-
     088-099>101-114>119-137>141.
     Winter Weather Advisory until 10 AM EST this morning for
     GAZ087-088-099>101-115>119.
     Cold Weather Advisory from 6 PM this evening to 9 AM EST
     Monday for GAZ087-088-099>101-114>119-137>141.
SC...Extreme Cold Warning until 1 PM EST this afternoon for SCZ040-
     042>045-047>052.
     Winter Weather Advisory until 10 AM EST this morning for
     SCZ040-042>045-047>052.
     Cold Weather Advisory from 6 PM this evening to 9 AM EST
     Monday for SCZ040-042>045-047>052.
     Lake Wind Advisory until 10 AM EST this morning for SCZ045.
MARINE...Gale Warning until 10 AM EST this morning for AMZ330-350-352-
     354.
     Gale Warning until 1 PM EST this afternoon for AMZ374.

&&

$$

ST/-