Offshore Forecast
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906
FZNT23 KWNM 180927
OFFN01

NAVTEX Marine Forecast for NE US waters
NWS Ocean Prediction Center Washington DC
527 AM 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...A cold front across the S waters this morning will
pass S of the area today and tonight as high pressure builds S
across the region. The high will remain over the area Tue, then
shift E of the area Tue night through Wed night. Hurricane Erin
will remain S and E of the waters. Tropical storm conditions will
be possible in the far SE waters Thu night as it lifts NE through
the Outer Mid- Atlantic Waters. 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 Thu night
through Fri night. A high pressure ridge will build across the
waters late Fri and Fri night. For more information on Hurricane
Erin, please closely monitor the latest forecasts from the
National Hurricane Center.

Eastport Maine to Cape Cod

.TODAY...N winds 15 to 25 kt. Seas 5 to 7 ft.
.TONIGHT...NE winds 5 to 15 kt. Seas 3 to 6 ft.
.TUE...E winds less than 10 kt. Seas 3 to 5 ft.
.TUE NIGHT...S to SE winds less than 10 kt. Seas 3 to 6 ft.
.WED...SE winds 5 to 15 kt. Seas 4 to 7 ft.
.WED NIGHT...E winds 5 to 15 kt. Seas 5 to 9 ft.
.THU...E to NE winds 10 to 20 kt. Seas 8 to 14 ft.
.THU NIGHT...NE winds 20 to 30 kt. Seas 12 to 19 ft.
.FRI...N winds 20 to 30 kt. Seas 11 to 18 ft.
.FRI NIGHT...SW winds 10 to 20 kt. Seas 8 to 12 ft.

Cape Cod to Nantucket Shoals and Georges Bank

...TROPICAL STORM CONDITIONS POSSIBLE THU...

.TODAY...NE winds 15 to 25 kt. Seas 4 to 7 ft. Isolated showers
and tstms.
.TONIGHT...NE winds 10 to 20 kt. Seas 5 to 8 ft.
.TUE...E winds 5 to 15 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...Tropical storm conditions possible.
.THU NIGHT...Tropical storm conditions possible.
.FRI...Tropical storm conditions possible.
.FRI NIGHT...N to NE winds 20 to 30 kt. Seas 11 to 18 ft.

South of New England

...TROPICAL STORM CONDITIONS POSSIBLE THU...

.TODAY...NE winds 20 to 30 kt. Seas 5 to 8 ft. Isolated showers
and tstms.
.TONIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft.
.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.
.WED NIGHT...E winds 20 to 30 kt. Seas 12 to 21 ft.
.THU...Tropical storm conditions possible.
.THU NIGHT...Tropical storm conditions possible.
.FRI...N to NE winds 20 to 30 kt. Seas 12 to 20 ft.
.FRI NIGHT...S to SW winds 10 to 20 kt. Seas 9 to 14 ft.