823
FZNT23 KWNM 182135
OFFN01

NAVTEX Marine Forecast for NE US waters
NWS Ocean Prediction Center Washington DC
535 PM EDT Mon Aug 18 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...High pressure over the region will continue Tue, then
shift E of the area Tue night through Wed night. Hurricane Erin
will be near 30.5N 73.7W at 2 PM EDT Wed, then move to 32.7N
73.0W by 2 AM EDT Thu, then to 34.8N 71.2W by 2 PM EDT Thu, then
move NE through Sat while moving away from the waters starting
Fri. Long period S swell from Hurricane Erin will move into the
region Tue, then continue through Thu night before backing to the
SE and E Fri night. A high pressure ridge will build across the
waters late Fri and Fri night and continue into Sat night. For
more information on Hurricane Erin, please closely monitor the
latest forecasts from the National Hurricane Center.

Eastport Maine to Cape Cod

.TONIGHT...NE winds 10 to 20 kt. Seas 3 to 6 ft.
.TUE...E winds 5 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...S to SE winds less than 10 kt. Seas 3 to 5 ft.
.WED...SE winds less than 10 kt. Seas 4 to 7 ft. Chance of rain.
.WED NIGHT...E winds 5 to 15 kt. Seas 5 to 9 ft.
.THU...E to NE winds 10 to 20 kt. Seas 9 to 15 ft.
.THU NIGHT...NE winds 20 to 30 kt. Seas 12 to 20 ft.
.FRI...N winds 20 to 30 kt. Seas 12 to 21 ft.
.FRI NIGHT...N to NW winds 10 to 20 kt. Seas 8 to 13 ft.
.SAT...S winds 10 to 20 kt. Seas 5 to 9 ft.
.SAT NIGHT...S winds 15 to 25 kt. Seas 5 to 8 ft.

Cape Cod to Nantucket Shoals and Georges Bank

...TROPICAL STORM CONDITIONS POSSIBLE THU...

.TONIGHT...NE winds 10 to 20 kt. Seas 5 to 8 ft. Isolated
showers and tstms.
.TUE...E winds 10 to 20 kt. Seas 6 to 9 ft.
.TUE NIGHT...E winds 5 to 15 kt. Seas 6 to 10 ft.
.WED...E winds 10 to 20 kt. Seas 8 to 13 ft.
.WED NIGHT...E winds 15 to 25 kt. Seas 12 to 21 ft.
.THU...E to NE winds 35 to 45 kt. Seas 20 to 33 ft.
.THU NIGHT...E to NE winds 45 to 55 kt. Seas 26 to 35 ft.
.FRI...Tropical storm conditions possible.
.FRI NIGHT...N to NE winds 20 to 30 kt. Seas 11 to 18 ft.
.SAT...S winds 10 to 20 kt. Seas 8 to 13 ft.
.SAT NIGHT...S to SE winds 10 to 15 kt. Seas 6 to 10 ft.

South of New England

...TROPICAL STORM CONDITIONS POSSIBLE THU...

.TONIGHT...E to NE winds 15 to 25 kt. Seas 5 to 9 ft. Isolated
showers and tstms.
.TUE...E winds 10 to 20 kt. Seas 6 to 9 ft.
.TUE NIGHT...E winds 5 to 15 kt. Seas 7 to 10 ft.
.WED...E winds 10 to 20 kt. Seas 8 to 13 ft. Chance of rain.
.WED NIGHT...E winds 20 to 30 kt. Seas 13 to 22 ft.
.THU...E to NE winds 35 to 45 kt. Seas 20 to 33 ft.
.THU NIGHT...N to NE winds 35 to 50 kt. Seas 20 to 32 ft.
.FRI...N to NE winds 20 to 30 kt. Seas 14 to 23 ft.
.FRI NIGHT...N to NE winds 15 to 25 kt. Seas 9 to 14 ft.
.SAT...S winds 10 to 20 kt. Seas 7 to 11 ft.
.SAT NIGHT...S winds 10 to 20 kt. Seas 5 to 9 ft.