NAVTEX Marine Forecast (Charleston, SC)

FZNT25 KWNM 200400
OFFN03

NAVTEX Marine Forecast for southeast U.S. waters
NWS Ocean Prediction Center Washington DC
1200 AM EDT Sun Sep 20 2026

Conditions given represent the highest within that period.

Locally higher winds and seas can be expected in and near tstms.

...Please refer to Coastal Waters Forecasts (CWF) available
through NOAA Weather Radio and other means for detailed coastal
waters forecasts...

.SYNOPSIS...A stationary front will prevail near or just N of 
the area tonight, with the front retreating to the N during Sun 
and Sun night. A high pressure ridge will extend W across the 
region Sun night, then shift NE Mon and Mon night. A low pressure
trough will develop off the SE coast Mon, then persist Tue and 
Tue night as strong high pressure builds well to the N of the 
area. A ridge extending S and SW from the strong high will build 
S over the Mid-Atlantic and SE states Wed and Wed night as low
pressure forms to the N and NE of the area. The strengthening 
low will slowly move NE while remaining N and NE of the area 
through Thu night. 

Murrells Inlet to 31N

.TONIGHT...E to SE winds 5 to 15 kt, becoming variable. Seas
3 to 4 ft. Scattered showers and tstms.
.SUN...Variable winds less than 10 kt. Seas 3 to 4 ft. Chance of
showers and tstms. 
.SUN NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. Chance of
showers and tstms. 
.MON...E winds less than 10 kt. Seas 3 to 4 ft. Scattered
showers and tstms. 
.MON NIGHT...E winds 5 to 15 kt. Seas 3 to 4 ft. 
.TUE...E to NE winds 5 to 15 kt. Seas 3 to 4 ft. 
.TUE NIGHT...NE winds 5 to 15 kt. Seas 3 to 4 ft. 
.WED...N to NE winds 15 to 25 kt. Seas 3 to 5 ft. 
.WED NIGHT...N to NE winds 15 to 25 kt. Seas 5 to 7 ft. 
.THU...N winds 15 to 25 kt. Seas 6 to 10 ft. 
.THU NIGHT...N winds 20 to 30 kt. Seas 8 to 12 ft. 

South of 31N

.TONIGHT...E winds less than 10 kt, becoming variable. Seas 3 to
4 ft. Tstms and scattered showers. 
.SUN...E to NE winds 5 to 15 kt. Seas 3 to 4 ft. Tstms and
scattered showers. 
.SUN NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.
Tstms and scattered showers. 
.MON...E to NE winds less than 10 kt. Seas 3 to 4 ft. Scattered
showers and tstms. 
.MON NIGHT...S to SE winds less than 10 kt. Seas 3 to 4 ft. 
.TUE...E winds less than 10 kt. Seas 3 to 4 ft. 
.TUE NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. 
.WED...NE winds 10 to 20 kt. Seas 3 to 4 ft. 
.WED NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.THU...NE winds 20 to 30 kt. Seas 4 to 8 ft. 
.THU NIGHT...N to NE winds 20 to 30 kt. Seas 6 to 11 ft.