NAVTEX Marine Forecast (Portsmouth, VA)

FZNT24 KWNM 170917
OFFN02

NAVTEX Marine Forecast for Mid-Atlantic states waters
NWS Ocean Prediction Center Washington DC
517 AM EDT Tue Mar 17 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...Behind a strong cold front moving farther E into the
N Atlantic today, a secondary cold front or surface trough moves
through the N and central waters during the day and into tonight.
High pressure then gradually builds E tonight and Wed, continuing
through Thu. While high pressure lingers over the central and S
waters, a front moves through the N waters Thu night and Fri. A
warm front then develops offshore of the mid-Atlantic Fri night,
moving N into the N waters Sat, and moving N of the area by Sat
night. By Sat night, high pressure will be S and E of the area,
with a surface trough located along or near the coast. 

Sandy Hook to 37.5N

.TODAY...W winds 20 to 30 kt. Seas 10 to 18 ft. Numerous
showers ending. 
.TONIGHT...NW winds 15 to 25 kt. Seas 7 to 12 ft. Light freezing
spray. 
.WED...N to NE winds 10 to 20 kt. Seas 5 to 9 ft. Light freezing
spray. 
.WED NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. Chance of
rain SE portion late. 
.THU...N winds 10 to 20 kt. Seas 5 to 8 ft. 
.THU NIGHT...N to NE winds 10 to 20 kt. Seas 5 to 8 ft. 
.FRI...N winds 10 to 20 kt. Seas 5 to 7 ft. 
.FRI NIGHT...Winds becoming S to SW 5 to 15 kt. Seas 3 to 6 ft.
.SAT...S winds 15 to 25 kt. Seas 3 to 5 ft. 
.SAT NIGHT...SW winds 20 to 30 kt. Seas 5 to 8 ft. 

37.5N to Cape Hatteras

.TODAY...NW winds 20 to 30 kt. Seas 11 to 18 ft. Numerous
showers and scattered tstms gradually ending. 
.TONIGHT...N to NW winds 15 to 25 kt. Seas 7 to 11 ft. 
.WED...NE winds 10 to 20 kt. Seas 5 to 9 ft. Scattered showers
late.
.WED NIGHT...N to NE winds 10 to 20 kt. Seas 5 to 7 ft. Chance
of rain, then rain likely late. 
.THU...N to NE winds 15 to 25 kt. Seas 5 to 9 ft. 
.THU NIGHT...N winds 15 to 25 kt. Seas 7 to 11 ft.
.FRI...N to NE winds 10 to 20 kt. Seas 6 to 10 ft. 
.FRI NIGHT...Variable winds 10 to 20 kt. Seas 5 to 8 ft.
.SAT...S winds 15 to 25 kt. Seas 4 to 6 ft. 
.SAT NIGHT...SW winds 15 to 25 kt. Seas 4 to 7 ft. 

Cape Hatteras to Murrells Inlet

.TODAY...NW winds 20 to 30 kt. Seas 8 to 14 ft. Numerous showers
and scattered tstms gradually ending. 
.TONIGHT...N winds 15 to 25 kt. Seas 7 to 11 ft. 
.WED...NE winds 10 to 20 kt. Seas 5 to 8 ft. Scattered showers
late.
.WED NIGHT...N winds 15 to 25 kt. Seas 5 to 8 ft. Chance of
rain, then rain likely. 
.THU...N winds 15 to 25 kt. Seas 5 to 8 ft. 
.THU NIGHT...N winds 10 to 20 kt. Seas 8 to 11 ft.
.FRI...N to NE winds 15 to 25 kt. Seas 7 to 10 ft. 
.FRI NIGHT...N to NE winds 15 to 25 kt. Seas 6 to 10 ft. 
.SAT...Winds becoming S to SW 5 to 15 kt. Seas 5 to 8 ft. 
.SAT NIGHT...SW winds 15 to 25 kt. Seas 4 to 6 ft.