Offshore Forecast
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586
FZNT23 KWNM 042053
OFFN01

NAVTEX Marine Forecast for NE US waters
NWS Ocean Prediction Center Washington DC
453 PM EDT Thu Sep 4 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 will exit the area tonight as a
series of weak lows move NE along a surface front nearly
stationary just SE of the waters. A slow- moving cold front
approaches the coast late tonight, and weakens as it moves E
across the waters Fri and Fri night. A stronger cold front
approaches from the W Sat, moves into the area Sat night, and
finally passes through the area by late Sun night and early Mon.
The front will then become nearly stationary just SE of the
waters Mon night with weak lows moving NE along the front. High
pressure builds into the waters behind the front and persists
through Tue night. The front will slowly drift NW as a warm front
late Tue and Tue night.

Eastport Maine to Cape Cod

.TONIGHT...S winds 10 to 20 kt. Seas 3 to 4 ft. Isolated showers
with vsby 1 nm or less.
.FRI...S winds 15 to 25 kt. Seas 3 to 5 ft. Scattered showers
and slight chance of tstms with vsby 1 nm or less.
.FRI NIGHT...S winds 15 to 25 kt. Seas 4 to 7 ft. Chance of rain
with vsby 1 nm or less.
.SAT...S winds 15 to 25 kt. Seas 4 to 6 ft. Slight chance of
rain with vsby 1 nm or less.
.SAT NIGHT...S to SW winds 10 to 20 kt. Seas 3 to 6 ft.
.SUN...S to SW winds 10 to 20 kt. Seas 3 to 6 ft.
.SUN NIGHT...W to NW winds 5 to 15 kt. Seas 4 to 6 ft.
.MON...W to SW winds 5 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...N winds 5 to 15 kt. Seas 3 to 4 ft.
.TUE...NE winds 5 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...N to NE winds 5 to 15 kt. Seas 3 to 4 ft.

Cape Cod to Nantucket Shoals and Georges Bank

.TONIGHT...Variable winds 5 to 15 kt. Seas 3 to 5 ft. Scattered
tstms and isolated showers with vsby 1 nm or less.
.FRI...S winds 10 to 20 kt. Seas 3 to 4 ft. Scattered showers,
fog and tstms with vsby 1 nm or less.
.FRI NIGHT...S winds 10 to 20 kt. Seas 3 to 5 ft. Scattered
tstms and isolated showers with vsby 1 nm or less.
.SAT...S winds 5 to 15 kt. Seas 3 to 4 ft. Scattered showers and
tstms with vsby 1 nm or less.
.SAT NIGHT...S to SW winds 15 to 25 kt. Seas 4 to 7 ft.
.SUN...S to SW winds 15 to 25 kt. Seas 5 to 8 ft.
.SUN NIGHT...N to NW winds 10 to 20 kt. Seas 5 to 7 ft.
.MON...N to NE winds 10 to 20 kt. Seas 4 to 6 ft.
.MON NIGHT...NE winds 15 to 25 kt. Seas 4 to 7 ft.
.TUE...NE winds 15 to 25 kt. Seas 5 to 8 ft.
.TUE NIGHT...NE winds 10 to 20 kt. Seas 5 to 8 ft.

South of New England

.TONIGHT...S winds 10 to 20 kt. Seas 3 to 5 ft. Isolated
showers.
.FRI...S winds 10 to 20 kt. Seas 3 to 5 ft.
.FRI NIGHT...S winds 10 to 20 kt. Seas 3 to 6 ft. Scattered
showers.
.SAT...S winds 10 to 20 kt. Seas 3 to 5 ft. Scattered showers
and tstms with vsby 1 nm or less.
.SAT NIGHT...S winds 15 to 25 kt. Seas 4 to 7 ft.
.SUN...S to SW winds 15 to 25 kt. Seas 5 to 8 ft.
.SUN NIGHT...N winds 10 to 20 kt. Seas 3 to 6 ft.
.MON...N to NE winds 10 to 20 kt. Seas 3 to 6 ft.
.MON NIGHT...NE winds 10 to 20 kt. Seas 4 to 7 ft.
.TUE...NE winds 15 to 25 kt. Seas 5 to 8 ft.
.TUE NIGHT...NE winds 10 to 20 kt. Seas 5 to 8 ft.