NAVTEX Marine Forecast (Portsmouth, VA)

FZNT24 KWNM 132117
OFFN02

NAVTEX Marine Forecast for Mid-Atlantic states waters
NWS Ocean Prediction Center Washington DC
517 PM EDT Wed Aug 13 2025

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...Weak high pressure over the waters will drift E of
the area tonight. Weak low pressure will lift NE from near the
Virginia Capes across the central and northern waters Thu and Thu
night while pulling a cold front across the area. The front will
then continue moving slowly S Fri through Sun as another low
moves SE along the front, before the front and low pass S of the
area Sun night. Another high ridge will build SE over the
northern waters Sat night into Sun night, then persist into Mon
night. Long period southeasterly swells from Erin will begin to
build across the region Mon. For more information on Tropical
Storm Erin, please monitor the latest forecasts from the National
Hurricane Center. 

Sandy Hook to 37.5N

.TONIGHT...SW winds 10 to 20 kt. Seas 3 to 4 ft. Numerous
showers and tstms with vsby 1 nm or less.
.THU...W winds 10 to 20 kt. Seas 3 to 5 ft. Rain.
.THU NIGHT...W to NW winds 5 to 15 kt. Seas 3 to 5 ft. Scattered
showers and tstms. 
.FRI...NE winds 5 to 15 kt. Seas 3 to 4 ft. 
.FRI NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT...NE winds 10 to 20 kt. Seas 4 to 7 ft. 
.SAT NIGHT...E to NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN...S to SW winds 5 to 15 kt. Seas 3 to 5 ft. 
.SUN NIGHT...W to SW winds 5 to 15 kt. Seas 3 to 4 ft. 
.MON...N to NE winds 5 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...NE winds 5 to 15 kt. Seas 3 to 6 ft. 

37.5N to Cape Hatteras

.TONIGHT...SW winds 10 to 20 kt. Seas 3 to 4 ft. Numerous
showers and tstms. 
.THU...W to SW winds 10 to 20 kt. Seas 3 to 5 ft. Scattered
showers and tstms. 
.THU NIGHT...W to SW winds 5 to 15 kt. Seas 3 to 5 ft. Scattered
showers and tstms. 
.FRI...S to SW winds 5 to 15 kt. Seas 3 to 4 ft. Scattered
showers and tstms. 
.FRI NIGHT...NE winds 5 to 15 kt. Seas 3 to 5 ft.
.SAT...NE winds 10 to 20 kt. Seas 4 to 7 ft. 
.SAT NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN...NE winds 10 to 20 kt. Seas 4 to 7 ft. 
.SUN NIGHT...NE winds 5 to 15 kt. Seas 3 to 4 ft.
.MON...NE winds 5 to 10 kt. Seas 3 to 6 ft. 
.MON NIGHT...NE winds 5 to 15 kt. Seas 4 to 6 ft. 

Cape Hatteras to Murrells Inlet

.TONIGHT...SW winds 10 to 20 kt. Seas 3 to 4 ft. Numerous
showers and tstms. 
.THU...SW winds 10 to 20 kt. Seas 3 to 5 ft. Scattered showers
and tstms. 
.THU NIGHT...SW winds 10 to 20 kt. Seas 3 to 4 ft. Scattered
showers and tstms. 
.FRI...W to SW winds 5 to 15 kt. Seas 3 to 5 ft. Scattered
showers and tstms. 
.FRI NIGHT...N winds 5 to 15 kt. Seas 3 to 5 ft. 
.SAT...N to NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN...NE winds 10 to 20 kt. Seas 4 to 7 ft. 
.SUN NIGHT...NE winds 5 to 15 kt. Seas 3 to 5 ft.
.MON...NE winds 5 to 15 kt. Seas 4 to 7 ft. 
.MON NIGHT...NE winds 5 to 15 kt. Seas 5 to 8 ft.