Summerville, South Carolina 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

943
FXUS62 KCHS 191259
AFDCHS

Area Forecast Discussion
National Weather Service Charleston SC
859 AM EDT Thu Mar 19 2026

.WHAT HAS CHANGED...
Text and gridded products were updated to remove the Frost
Advisory

&&

.KEY MESSAGES...
- 1) Quiet weather and warming temperatures into the weekend.

&&

.DISCUSSION...
KEY MESSAGE 1: Quiet weather and warming temperatures through
the weekend.

A strong upper ridge will gradually build across the eastern
United States through Monday, resulting in dry weather and
warming temperatures. High temps could approach 90 degrees over
inland southeast GA on Monday.

A backdoor cold front will drop through the area Monday night,
potentially accompanied by isolated showers. Cooler temperatures
will briefly return thereafter.

&&

.AVIATION /12Z THURSDAY THROUGH MONDAY/...
VFR conditions will prevail at KCHS, KJZI, and KSAV through 12z
Friday.

Extended Aviation Outlook: VFR conditions are expected to
prevail.

&&

.MARINE...
Today through Monday: Elevated northeast flow will impact the
local waters today with up to 15-20 knots across the nearshore
waters and even some gusts up to around 25 knots in the outer GA
waters. Seas will also be elevated, up to 5 ft across the
nearshore waters and up to 6 ft in the outer waters. Conditions
will then improve this evening as the gradient relaxes. A Small
Craft Advisory remains in effect for the outer GA waters through
early Friday morning. Conditions will be quiet through the
weekend, though there could be some periods of 15-20 knots of
flow within some moderate southwest flow. There are some
indications in model guidance that a backdoor cold front will
begin dropping into the local waters from the north late Monday,
with any possible impacts mostly occurring beyond the current
forecast period.

&&

.EQUIPMENT...
Radome panel replacement maintenance has started at the KCLX
radar and is scheduled to continue through Friday March 20th.
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 5 AM EDT Friday for AMZ374.

&&

$$