FZNT21 KWBC 172035
OFFNT1
Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
435 PM EDT Sat Oct 17 2026
New England continental shelf and slope waters from 60 nm
offshore to the Hague Line, except to 1000 fm south of New
England.
Seas given as significant wave height, which is the average
height of the highest 1/3 of the waves. Individual waves may be
more than twice the significant wave height.
Locally higher winds and seas can be expected in and near tstms.
ANZ898-180800-
435 PM EDT Sat Oct 17 2026
.SYNOPSIS FOR NEW ENGLAND WATERS...Strong high pressure will
build E over the Mid-Atlantic and New England states tonight as
low pressure organizes along a strong cold front to the S of the
waters. The high pressure area will build E across most of the
region Sun into Sun night, then shift E Mon into Tue as the
organizing low pressure area to the S of the waters moves slowly
N toward the area. The low pressure area will remain S of the
area late Tue through Thu before finally move E and passing SE
of the waters Thu night. Mariners should closely monitor the
latest OPC and coastal marine forecasts over the next few days,
and vessels should begin to execute avoidance plans especially
for those transiting the waters from the southern New England
waters southward over the next several days.
$$
ANZ800-180800-
Gulf of Maine to the Hague Line-
435 PM EDT Sat Oct 17 2026
.TONIGHT...N winds 15 to 25 kt. Seas 4 to 8 ft.
.SUN...N to NE winds 5 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds 5 to 15 kt, increasing to 10 to 20 kt. Seas
3 to 4 ft.
.MON...E winds 10 to 20 kt, becoming 15 to 25 kt. Seas building
to 5 to 9 ft.
.MON NIGHT...NE winds 20 to 30 kt. Seas 6 to 11 ft.
.TUE...NE winds 20 to 30 kt. Seas 7 to 11 ft.
.TUE NIGHT...NE winds 20 to 30 kt. Seas 7 to 11 ft.
.WED...NE winds 20 to 30 kt. Seas 8 to 13 ft.
.WED NIGHT...NE winds 20 to 30 kt. Seas 8 to 13 ft.
.THU...N to NE winds 20 to 25 kt. Seas 7 to 11 ft.
.THU NIGHT...N winds 20 to 30 kt. Seas 6 to 10 ft.
$$
ANZ805-180800-
Georges Bank between Cape Cod and 68W north of 1000 FM-
435 PM EDT Sat Oct 17 2026
...GALE WARNING...
.TONIGHT...N to NE winds 20 to 30 kt. Seas 6 to 10 ft. Rain.
.SUN...NE winds 20 to 30 kt. Seas 6 to 11 ft.
.SUN NIGHT...E to NE winds 20 to 30 kt. Seas 7 to 13 ft.
.MON...NE winds 30 to 40 kt. Seas 9 to 16 ft. Rain.
.MON NIGHT...NE winds 20 to 30 kt. Seas 8 to 15 ft.
.TUE...NE winds 25 to 30 kt, increasing to 30 to 40 kt. Seas
9 to 15 ft.
.TUE NIGHT...NE winds 35 to 45 kt. Seas 10 to 18 ft.
.WED...NE winds 35 to 45 kt. Seas 11 to 19 ft.
.WED NIGHT...NE winds 25 to 35 kt, diminishing to 20 to 30 kt.
Seas 10 to 18 ft.
.THU...N to NE winds 20 to 30 kt. Seas 9 to 13 ft.
.THU NIGHT...N winds 25 to 35 kt, becoming 25 to 30 kt. Seas
8 to 13 ft.
$$
ANZ900-180800-
Georges Bank between 68W and the Hague Line-
435 PM EDT Sat Oct 17 2026
...GALE WARNING...
.TONIGHT...N to NE winds 20 to 30 kt. Seas 5 to 9 ft. Rain
early.
.SUN...NE winds 20 to 30 kt. Seas 5 to 9 ft.
.SUN NIGHT...E winds 20 to 30 kt. Seas building to 7 to 12 ft.
.MON...E to NE winds 25 to 35 kt. Seas 8 to 15 ft. Rain.
.MON NIGHT...NE winds 20 to 30 kt. Seas 8 to 14 ft.
.TUE...NE winds 20 to 30 kt, increasing to 25 to 35 kt. Seas
10 to 14 ft.
.TUE NIGHT...NE winds 35 to 45 kt. Seas 11 to 17 ft.
.WED...NE winds 35 to 45 kt. Seas 12 to 18 ft.
.WED NIGHT...NE winds 25 to 35 kt, diminishing to 20 to 30 kt.
Seas 11 to 16 ft.
.THU...NE winds 15 to 25 kt, becoming N 20 to 30 kt. Seas 10 to
12 ft.
.THU NIGHT...N winds 25 to 35 kt. Seas 9 to 13 ft.
$$
ANZ810-180800-
South of New England between the Great South Channel and Montauk
Point to 1000 FM-
435 PM EDT Sat Oct 17 2026
...GALE WARNING...
.TONIGHT...N winds 25 to 30 kt, becoming NE. Seas 6 to 10 ft.
Rain early.
.SUN...NE winds 20 to 30 kt. Seas 7 to 10 ft.
.SUN NIGHT...E to NE winds 25 to 30 kt. Seas 7 to 13 ft.
.MON...NE winds 30 to 40 kt. Seas 10 to 17 ft. Rain likely.
.MON NIGHT...NE winds 30 to 40 kt. Seas 12 to 17 ft.
.TUE...NE winds 30 to 40 kt. Seas 12 to 17 ft.
.TUE NIGHT...NE winds 35 to 45 kt. Seas 13 to 19 ft.
.WED...NE winds 35 to 45 kt. Seas 14 to 20 ft.
.WED NIGHT...N to NE winds 30 to 40 kt. Seas 13 to 19 ft.
.THU...N winds 25 to 35 kt. Seas 12 to 15 ft.
.THU NIGHT...N winds 30 to 35 kt, diminishing to 25 to 30 kt.
Seas 10 to 13 ft.
$$
ANZ815-180800-
South of Long Island between Montauk Point and Sandy Hook to
1000 FM-
435 PM EDT Sat Oct 17 2026
...GALE WARNING...
.TONIGHT...N winds 25 to 30 kt, becoming NE. Seas 5 to 9 ft.
Chance of rain early.
.SUN...NE winds 20 to 30 kt. Seas 6 to 10 ft.
.SUN NIGHT...NE winds 25 to 30 kt. Seas 7 to 12 ft.
.MON...NE winds 30 to 40 kt. Seas 10 to 17 ft. Chance of rain.
.MON NIGHT...NE winds 30 to 40 kt. Seas 12 to 18 ft.
.TUE...NE winds 35 to 45 kt. Seas 13 to 17 ft.
.TUE NIGHT...NE winds 35 to 45 kt. Seas 13 to 19 ft.
.WED...NE winds 35 to 45 kt. Seas 14 to 20 ft.
.WED NIGHT...N to NE winds 35 to 40 kt. Seas 13 to 20 ft.
.THU...N winds 30 to 35 kt. Seas 12 to 18 ft.
.THU NIGHT...N winds 30 to 35 kt, diminishing to 25 to 30 kt.
Seas 10 to 14 ft.
$$
.Forecaster Mills. Ocean Prediction Center.