Tue, 18 Aug 2026 03:30:20 +0000 Tue, 18 Aug 2026 03:30:20 +0000 Ocean Prediction Center - NAVTEX Marine Forecast (Portsmouth, VA) https://ocean.weather.gov/ none Ocean Prediction Center web team en-us https://ocean.weather.gov/contact/index.php https://ocean.weather.gov/images/xml_logo_opc.gif https://ocean.weather.gov/ NOAA logo 95 45 OFFN02

NAVTEX Marine Forecast for Mid-Atlantic states waters
NWS Ocean Prediction Center Washington DC
1127 PM EDT Mon Aug 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...A warm front extending S and SE from low pressure
located SE of Long Island will lift NE over the outer waters this
evening. The low will track slowly E across waters just N of the
area overnight into Tue, then clear NE of the area by Tue night.
The low will pull a cold front across the N portions tonight,
with the front stalling over the central waters Tue through Wed
night while slowly weakening. The front will slowly return N as a
weak warm front Thu, then dissipate Thu night. A cold front will
approach from the NW by early Fri as low pressure forms along the
front just N of the area. The low will track NE and pass N and
then NE of the waters Fri into Fri night as a trailing cold front
pushes S over the N waters. The front will stall over the central
waters Sat, then return N as a warm front Sat night as high
pressure passes N and NE of the region.

Sandy Hook to 37.5N

.TONIGHT...W to SW winds 5 to 15 kt. Seas 5 to 7 ft. Chance of
showers and tstms.
.TUE...Variable winds less than 10 kt. Seas 3 to 5 ft. Chance of
showers and tstms.
.TUE NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.
Chance of showers and tstms.
.WED...Variable winds 5 to 15 kt. Seas 3 to 4 ft. Chance of
showers and tstms.
.WED NIGHT...S to SW winds 5 to 15 kt. Seas 3 to 4 ft.
.THU...S winds less than 10 kt. Seas 3 to 4 ft.
.THU NIGHT...SW winds 5 to 15 kt. Seas 3 to 4 ft.
.FRI...N to NE winds 5 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 5 to 15 kt. Seas 3 to 5 ft.
.SAT...S to SW winds 5 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...SW winds 5 to 15 kt. Seas 3 to 5 ft.

37.5N to Cape Hatteras

.TONIGHT...SW winds 10 to 20 kt, becoming W to SW 5 to 15 kt.
Seas 4 to 7 ft. Scattered showers and tstms.
.TUE...W to SW winds 5 to 15 kt. Seas 3 to 5 ft. Scattered
showers and tstms.
.TUE NIGHT...Variable winds 5 to 15 kt. Seas 3 to 4 ft.
Scattered showers and tstms.
.WED...Variable winds less than 10 kt. Seas 3 to 4 ft. Scattered
showers and tstms.
.WED NIGHT...S to SW winds 5 to 15 kt. Seas 3 to 4 ft.
.THU...S to SW winds 5 to 15 kt. Seas 3 to 4 ft.
.THU NIGHT...SW winds 5 to 15 kt. Seas 3 to 4 ft.
.FRI...SW winds 5 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...SW winds 5 to 15 kt. Seas 3 to 4 ft.
.SAT...SW winds 5 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...SW winds 10 to 20 kt. Seas 3 to 5 ft.

Cape Hatteras to Murrells Inlet

.TONIGHT...SW winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas
3 to 5 ft. Scattered showers and tstms.
.TUE...SW winds 5 to 15 kt. Seas 3 to 4 ft. Scattered showers
and tstms.
.TUE NIGHT...S to SW winds 5 to 15 kt. Seas 3 to 4 ft. Scattered
showers and tstms.
.WED...S winds 5 to 15 kt. Seas 3 to 4 ft. Scattered showers and
tstms.
.WED NIGHT...S winds 5 to 15 kt. Seas 3 to 4 ft.
.THU...S to SW winds 5 to 15 kt. Seas 3 to 4 ft.
.THU NIGHT...SW winds 5 to 15 kt. Seas 3 to 4 ft.
.FRI...SW winds 5 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...SW winds 10 to 20 kt. Seas 3 to 5 ft.
.SAT...SW winds 10 to 20 kt. Seas 3 to 5 ft.
.SAT NIGHT...SW winds 10 to 20 kt. Seas 3 to 5 ft.
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