North Charleston, South Carolina 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

485
FXUS62 KCHS 190631
AFDCHS

Area Forecast Discussion
National Weather Service Charleston SC
231 AM EDT Fri Jun 19 2026

.WHAT HAS CHANGED...
All sections.

&&

.KEY MESSAGES...
- 1) Following a round of morning rainfall, a fairly typical
  summertime pattern is expected for the weekend into next week
  with daily shower and thunderstorm chances. Hot and humid
  conditions are expected Monday and Tuesday.

&&

.DISCUSSION...
KEY MESSAGE 1: Following a round of morning rainfall, a fairly
typical summertime pattern is expected for the weekend into next
week with daily shower and thunderstorm chances. Hot and humid
conditions are expected Monday and Tuesday.

The primary upper vort max associated with the remnants of TS
Arthur are now moving into our western zones, accompanied by
widespread showers and isolated thunderstorms. Fortunately it`s
moving into a worked-over airmass so the severe wx potential is
very low. We should see beneficial rainfall for several hours
early this morning as the activity steadily pushes east. The
main area of precipitation should be moving offshore by
daybreak.

Morning cloud cover may limit boundary layer destabilization,
but there could be enough pockets of SBCAPE and convergence
associated with a lingering surface trough to spur scattered
diurnal convection today.

A front in the vicinity on Saturday will eventually wash out,
with the region to become positioned between high pressure
offshore and an approaching cold front Monday into Tuesday.
Shower and thunderstorm chances will be in the forecast each
day, with coverage peaking in the afternoon and evenings when
instability is maximized. Organized severe weather potential is
low, but cannot rule out a couple strong to severe storms each
day during this time of year.

Also of note, hot and humid conditions are expected Monday and
Tuesday ahead of an approaching cold front. Heat indices could reach
the 105-110F range, particularly along the coastal counties. We will
need to watch the potential for Heat Advisories.

&&

.AVIATION /06Z FRIDAY THROUGH TUESDAY/...
An area of widespread light to moderate rain will spread over
the terminals through the late night hours. Any flight
restrictions should be brief. Guidance is in good agreement that
a period of MVFR ceilings will develop at all three TAF sites
around daybreak and persist through early afternoon. Gusty SW
winds expected today as a surface low drifts past to the
northwest. Additional pop-up showers/tstms are possible later
this morning into the afternoon as surface temperatures
increase.

Extended Aviation Outlook: Brief periods of flight restrictions
possible with any showers and thunderstorms.

&&

.MARINE...
Surface low pressure associated with the remnants of TS Arthur
will move through central SC this morning. This will interact
with offshore high pressure to temporarily enhance a southwesterly
gradient over the waters. Gale Warnings continue for the SC
waters from 6am to 4pm due to expected wind gusts of 35-40 kt.
Elsewhere, Small Craft Advisories are in effect. Some of the
high-res guidance indicates the period of strongest winds may
only last 2-4 hours this morning, so the Gales may be able to be
canceled early based on future trends.

Saturday through Wednesday: Marine conditions will improve Saturday
with no additional concerns through the weekend. A cold front could
approach the area Monday into Tuesday, leading to increasing winds
and seas. Gusts could approach 25 knots especially Monday and
Tuesday afternoons, but looks fairly marginal for Small Craft
Advisories at this time.

Rip Currents: Increasing swells and gusty winds will lead to a
Moderate risk for rip currents at South Carolina beaches
Friday.

&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...None.
SC...None.
MARINE...Small Craft Advisory until 4 PM EDT this afternoon for AMZ340.
     Small Craft Advisory until 6 AM EDT early this morning for
     AMZ360-362.
     Gale Warning from 6 AM this morning to 4 PM EDT this afternoon
     for AMZ360-362-380-382.
     Small Craft Advisory until 5 PM EDT this afternoon for AMZ364.
     Small Craft Advisory until 8 PM EDT this evening for AMZ384.

&&

$$

BRS/JRL