Offshore Forecast
Issued by NWS

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853
FZNT23 KWNM 170834
OFFN01

NAVTEX Marine Forecast for NE US waters
NWS Ocean Prediction Center Washington DC
434 AM EDT Sat May 17 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 warm front will develop and lift NE over the area
today into tonight. Low pressure will move offshore over the
western and northern parts of the Gulf of Maine tonight into Sun
while pulling a cold front across the region. The low will then
drift off to the E Sun night into Mon night. A series of
secondary cold fronts or low pressure troughs will move SE across
the area Sun night into Tue. A weak high pressure ridge will
build E over the region Tue night into Wed, then shift E of the
area by Wed night as a warm front and developing low pressure
system approaches from the SW.

Eastport Maine to Cape Cod

.TODAY...SE winds 10 to 20 kt. Seas 3 to 5 ft. Chance of
showers and tstms. Vsby 1 NM or less.
.TONIGHT...S to SW winds 10 to 20 kt. Seas 3 to 5 ft. Scattered
showers, tstms and patchy fog with vsby 1 nm or less.
.SUN...W to SW winds 10 to 20 kt. Seas 3 to 5 ft. Chance of
showers and tstms with vsby 1 nm or less.
.SUN NIGHT...W to NW winds 10 to 20 kt. Seas 4 to 6 ft. Chance
of showers with vsby 1 nm or less.
.MON...NW winds 10 to 20 kt. Seas 4 to 6 ft.
.MON NIGHT...N to NW winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE...N to NE winds 15 to 25 kt. Seas 4 to 6 ft.
.TUE NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft.
.WED...E winds 10 to 20 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds 20 to 30 kt. Seas 6 to 10 ft.

Cape Cod to Nantucket Shoals and Georges Bank

.TODAY...S to SW winds 10 to 20 kt. Seas 4 to 6 ft. Chance of
showers and scattered tstms with vsby 1 nm or less.
.TONIGHT...SW winds 10 to 20 kt. Seas 5 to 9 ft. Chance of
showers and tstms with vsby 1 nm or less.
.SUN...W winds 15 to 25 kt. Seas 6 to 9 ft. Chance of showers
and scattered tstms with vsby 1 nm or less.
.SUN NIGHT...W winds 20 to 30 kt. Seas 7 to 11 ft. Chance of
showers with vsby 1 nm or less.
.MON...W to NW winds 20 to 30 kt. Seas 8 to 12 ft.
.MON NIGHT...NW winds 15 to 25 kt. Seas 6 to 11 ft.
.TUE...N to NW winds 15 to 25 kt. Seas 5 to 8 ft.
.TUE NIGHT...NE winds 10 to 20 kt. Seas 5 to 8 ft.
.WED...E winds 10 to 20 kt. Seas 5 to 9 ft.
.WED NIGHT...E to SE winds 20 to 30 kt. Seas 6 to 11 ft.

South of New England

.TODAY...SW winds 10 to 20 kt. Seas 3 to 6 ft. Chance of showers
and tstms with vsby 1 nm or less.
.TONIGHT...W winds 10 to 20 kt. Seas 5 to 7 ft. Chance of
showers and tstms with vsby 1 nm or less.
.SUN...W winds 15 to 25 kt. Seas 5 to 7 ft.
.SUN NIGHT...W to NW winds 20 to 30 kt. Seas 5 to 8 ft.
.MON...W to NW winds 20 to 30 kt. Seas 6 to 10 ft.
.MON NIGHT...NW winds 15 to 25 kt. Seas 4 to 8 ft.
.TUE...N winds 10 to 20 kt. Seas 3 to 5 ft.
.TUE NIGHT...E to NE winds 10 to 20 kt. Seas 3 to 5 ft.
.WED...E winds 15 to 25 kt. Seas 4 to 6 ft.
.WED NIGHT...E to SE winds 20 to 30 kt. Seas 7 to 12 ft.