NAVTEX Marine Forecast (Portsmouth, VA)

FZNT24 KWNM 200350
OFFN02

NAVTEX Marine Forecast for Mid-Atlantic states waters
NWS Ocean Prediction Center Washington DC
1150 PM EDT Sat Sep 19 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 persist from the South
Carolina coast eastward tonight, and then drift N Sun into Sun
night. Low pressure located along the front over the outer waters
will weaken later tonight, then move N and NE Sun into Sun night.
A cold front will reach the far northern waters late Sun night,
and then slowly move S Mon. The front will likely stall from near
the Virginia Capes eastward Mon night through Tue night as low
pressure develops S of the frontal boundary. Low pressure or a
wave of low pressures will move very slowly N along or S of the
front Wed through Thu night. Strong high pressure will build N of
the region while interacting with the frontal boundary and low
pressure over the area to generate NE to E gales, and potentially
storm force winds and building seas late Tue through Thu night
mainly over the central and northern waters. Mariners are urged
to closely monitor the latest OPC and coastal National Weather
Service forecasts over the coming days, and begin to develop
avoidance plans for this potentially significant event. 

Sandy Hook to 37.5N

...GALE FORCE WINDS POSSIBLE TUE...

.TONIGHT...E winds 10 to 20 kt. Seas 4 to 8 ft. 
.SUN...S winds 10 to 20 kt. Seas 4 to 7 ft. Chance of showers
and tstms. 
.SUN NIGHT...N to NW winds 10 to 20 kt. Seas 3 to 6 ft. Chance
of showers and slight chance of tstms. 
.MON...NE winds 15 to 25 kt. Seas 3 to 6 ft. Chance of showers. 
.MON NIGHT...E winds 20 to 30 kt. Seas 5 to 8 ft. 
.TUE...E to NE winds 25 to 35 kt. Seas 7 to 12 ft. 
.TUE NIGHT...E to NE winds 30 to 40 kt. Seas 8 to 13 ft. 
.WED...NE winds 30 to 40 kt. Seas 10 to 16 ft.
.WED NIGHT...NE winds 30 to 40 kt. Seas 12 to 18 ft. 
.THU...NE winds 25 to 35 kt. Seas 13 to 19 ft. 
.THU NIGHT...NE winds 30 to 40 kt. Seas 12 to 17 ft. 

37.5N to Cape Hatteras

...GALE FORCE WINDS POSSIBLE WED NIGHT...

.TONIGHT...E to NE winds 15 to 25 kt. Seas 4 to 8 ft. Chance of
showers and tstms. 
.SUN...Variable winds 10 to 20 kt. Seas 4 to 7 ft. Chance of
showers and tstms. 
.SUN NIGHT...W to SW winds 5 to 15 kt. Seas 3 to 6 ft. Scattered
showers and tstms. 
.MON...E to NE winds 10 to 20 kt. Seas 3 to 4 ft. Scattered
showers and tstms. 
.MON NIGHT...E to SE winds 10 to 20 kt. Seas 3 to 6 ft. 
.TUE...NE winds 20 to 30 kt. Seas 5 to 9 ft. 
.TUE NIGHT...E to NE winds 20 to 30 kt. Seas 7 to 11 ft. 
.WED...NE winds 20 to 30 kt. Seas 9 to 14 ft. 
.WED NIGHT...NE winds 25 to 35 kt. Seas 11 to 17 ft. 
.THU...N to NE winds 25 to 35 kt. Seas 12 to 17 ft. 
.THU NIGHT...W to SW winds 30 to 40 kt. Seas 12 to 17 ft. 

Cape Hatteras to Murrells Inlet

.TONIGHT...E winds 10 to 20 kt, becoming variable 5 to 15 kt.
Seas 4 to 6 ft. Chance of showers and tstms.
.SUN...S winds 5 to 15 kt. Seas 4 to 6 ft. Chance of showers and
tstms. 
.SUN NIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft.
Scattered showers and tstms. 
.MON...E to SE winds less than 10 kt. Seas 3 to 4 ft. Scattered
showers and tstms. 
.MON NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.TUE...E to NE winds 5 to 15 kt. Seas 3 to 5 ft. 
.TUE NIGHT...N winds 10 to 20 kt. Seas 3 to 6 ft. 
.WED...N winds 15 to 25 kt. Seas 5 to 9 ft. 
.WED NIGHT...N to NW winds 20 to 30 kt. Seas 8 to 14 ft. 
.THU...N to NW winds 20 to 30 kt. Seas 11 to 16 ft. 
.THU NIGHT...N winds 20 to 30 kt. Seas 11 to 16 ft.