FZNT21 KWBC 132021
OFFNT1
Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
421 PM EDT Tue Oct 13 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.
ANZ898-140745-
421 PM EDT Tue Oct 13 2026
.SYNOPSIS FOR NEW ENGLAND WATERS...High pressure moves off to the
NE tonight, allowing a warm front to lift N through the waters
later tonight and early Wed with low pressure developing along
the front. A cold front then moves S through the area Wed
afternoon and Wed night. A secondary cold front approaches the
waters Wed night, moving over the E waters overnight Wed and
early Thu. High pressure builds in from the W Thu, moving E Thu
night in advance of another warm front that will move N over the
area Fri. A strong cold front approaches the waters from the W
late Fri, moving quickly E across the area Fri night. S of broad
low pressure over SE Canada, a series of surface troughs and
secondary fronts move SE over the waters Sat through Sun night.
Mariners should monitor forecasts throughout the week, with the
potential for widespread hazardous conditions possible late Fri
into the weekend.
$$
ANZ800-140745-
Gulf of Maine to the Hague Line-
421 PM EDT Tue Oct 13 2026
...GALE FORCE WINDS POSSIBLE FRI NIGHT...
.TONIGHT...S to SE winds 15 to 25 kt, becoming S to SW 20 to
25 kt. Seas 6 to 8 ft. Chance of rain early, then scattered
showers and slight chance of tstms with vsby 1 nm or less.
.WED...SW winds 15 to 25 kt, becoming W 10 to 20 kt. Seas 4 to
8 ft. Scattered showers and slight chance of tstms with vsby
1 nm or less.
.WED NIGHT...NW winds 10 to 20 kt, increasing to 20 to 30 kt.
Seas 4 to 7 ft.
.THU...N to NW winds 20 to 30 kt. Seas 6 to 10 ft.
.THU NIGHT...N winds 5 to 15 kt, becoming SE 5 to 10 kt. Seas
4 to 7 ft.
.FRI...S winds 15 to 25 kt. Seas 3 ft, building to 4 to 8 ft.
.FRI NIGHT...SW winds 25 to 30 kt, becoming W 25 to 35 kt. Seas
6 to 11 ft.
.SAT...NW winds 30 to 40 kt. Seas 10 to 13 ft.
.SAT NIGHT...NW winds 30 to 35 kt, diminishing to 25 to 30 kt.
Seas 8 to 14 ft.
.SUN...W to NW winds 20 to 25 kt. Seas 6 to 10 ft.
.SUN NIGHT...NW winds 15 to 20 kt, becoming W 10 to 15 kt. Seas
3 to 6 ft.
$$
ANZ805-140745-
Georges Bank between Cape Cod and 68W north of 1000 FM-
421 PM EDT Tue Oct 13 2026
...GALE FORCE WINDS POSSIBLE FRI NIGHT...
.TONIGHT...S to SE winds 10 to 20 kt, becoming SW 15 to 25 kt.
Seas 5 to 7 ft. Chance of rain. Scattered showers and slight
chance of tstms.
.WED...W to SW winds 15 to 25 kt. Seas 5 to 8 ft.
.WED NIGHT...W to NW winds 10 to 20 kt, becoming N to NW 15 to
25 kt. Seas 4 to 7 ft. Chance of showers and tstms.
.THU...N winds 20 to 30 kt, diminishing to 10 to 20 kt. Seas
5 to 9 ft.
.THU NIGHT...N to NE winds 5 to 15 kt, becoming E to SE 5 to
10 kt. Seas 4 to 7 ft.
.FRI...S winds 15 to 25 kt. Seas 5 to 8 ft.
.FRI NIGHT...SW winds 25 to 35 kt, becoming W. Seas 7 to 13 ft.
.SAT...NW winds 30 to 40 kt. Seas 10 to 14 ft.
.SAT NIGHT...NW winds 25 to 35 kt, diminishing to 20 to 30 kt.
Seas 9 to 13 ft.
.SUN...NW winds 20 to 25 kt. Seas 6 to 10 ft.
.SUN NIGHT...NW winds 15 to 20 kt, diminishing to 5 to 10 kt.
Seas 4 to 7 ft.
$$
ANZ900-140745-
Georges Bank between 68W and the Hague Line-
421 PM EDT Tue Oct 13 2026
...GALE FORCE WINDS POSSIBLE FRI NIGHT...
.TONIGHT...SE winds 10 to 20 kt, becoming S to SW 15 to 25 kt.
Seas 6 to 7 ft. Chance of rain. Scattered showers and slight
chance of tstms.
.WED...W to SW winds 15 to 25 kt. Seas 6 to 8 ft. Scattered
showers and slight chance of tstms.
.WED NIGHT...W winds 10 to 20 kt, becoming N to NW 15 to 25 kt.
Seas 5 to 8 ft. Chance of showers and tstms.
.THU...N winds 20 to 30 kt. Seas 6 to 10 ft.
.THU NIGHT...N winds 10 to 15 kt, becoming variable. Seas 5 to
8 ft.
.FRI...S winds 15 to 25 kt. Seas 5 to 8 ft.
.FRI NIGHT...SW winds 25 to 30 kt, becoming W to SW 25 to 35 kt.
Seas 7 to 13 ft.
.SAT...NW winds 30 to 40 kt. Seas 11 to 15 ft.
.SAT NIGHT...NW winds 30 to 35 kt, diminishing to 25 to 30 kt.
Seas 10 to 15 ft.
.SUN...NW winds 20 to 30 kt. Seas 7 to 12 ft.
.SUN NIGHT...NW winds 15 to 25 kt, becoming N to NW 10 to 15 kt.
Seas 5 to 8 ft.
$$
ANZ810-140745-
South of New England between the Great South Channel and Montauk
Point to 1000 FM-
421 PM EDT Tue Oct 13 2026
...GALE FORCE WINDS POSSIBLE FRI NIGHT...
.TONIGHT...S winds 10 to 15 kt, becoming SW 15 to 20 kt. Seas
4 to 7 ft.
.WED...W to SW winds 15 to 25 kt. Seas 6 to 8 ft.
.WED NIGHT...W to NW winds 10 to 20 kt, becoming N to NW 15 to
20 kt. Seas 4 to 7 ft. Chance of showers and tstms.
.THU...N to NE winds 10 to 20 kt. Seas 3 to 6 ft.
.THU NIGHT...E to NE winds 5 to 15 kt, becoming SE. Seas 3 to
6 ft.
.FRI...S winds 15 to 25 kt, becoming SW 20 to 25 kt. Seas 4 to
8 ft.
.FRI NIGHT...SW winds 25 to 35 kt, becoming W to NW 30 to 35 kt.
Seas 8 to 13 ft.
.SAT...NW winds 30 to 35 kt. Seas 11 to 13 ft.
.SAT NIGHT...N to NW winds 20 to 30 kt. Seas 7 to 12 ft.
.SUN...NW winds 15 to 20 kt. Seas 5 to 9 ft.
.SUN NIGHT...NW winds 15 to 20 kt, diminishing to 5 to 10 kt.
Seas 3 to 6 ft.
$$
ANZ815-140745-
South of Long Island between Montauk Point and Sandy Hook to
1000 FM-
421 PM EDT Tue Oct 13 2026
...GALE FORCE WINDS POSSIBLE FRI NIGHT...
.TONIGHT...S to SW winds 10 to 15 kt, becoming SW 15 to 20 kt.
Seas 3 to 6 ft.
.WED...SW winds 15 to 20 kt, becoming W. Seas 4 to 7 ft.
.WED NIGHT...W to NW winds 10 to 15 kt, becoming N 15 to 20 kt.
Seas 4 to 5 ft. Chance of showers and tstms.
.THU...N winds 15 to 20 kt, becoming NE 10 to 15 kt. Seas 3 to
5 ft.
.THU NIGHT...E winds 10 to 15 kt, becoming SE. Seas 3 to 5 ft.
.FRI...S winds 20 to 25 kt, becoming SW 20 to 30 kt. Seas 5 to
9 ft.
.FRI NIGHT...W to SW winds 25 to 35 kt, becoming W to NW 30 to
35 kt. Seas 8 to 12 ft.
.SAT...NW winds 30 to 40 kt. Seas 9 to 13 ft.
.SAT NIGHT...NW winds 25 to 30 kt, becoming N 20 to 25 kt. Seas
6 to 11 ft.
.SUN...NW winds 15 to 20 kt. Seas 3 to 6 ft.
.SUN NIGHT...NW winds 10 to 15 kt, becoming W 5 to 10 kt. Seas
3 to 4 ft.
$$
.Forecaster Collins. Ocean Prediction Center.