FZNT21 KWBC 182023
OFFNT1

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
423 PM EDT Tue Aug 18 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.

ANZ898-190830-
423 PM EDT Tue Aug 18 2026

.SYNOPSIS FOR NEW ENGLAND WATERS...Low pressure over Georges Bank
this evening will slowly move E of the area early tonight while
pulling a cold front across the waters. Weak high pressure will
build E into the area tonight into Wed, then shift E of the
region Wed night. Another cold front will move slowly S across
the waters Thu into Thu night, then stall S of the area Fri and
Fri night as weak low pressure forms along the front. The front
will then lift N across the area as a warm front Sat into Sun as
low pressure tracks NE along the coast, before another cold front
moves offshore Sun night.

$$

ANZ800-190830-
Gulf of Maine to the Hague Line-
423 PM EDT Tue Aug 18 2026

.TONIGHT...N winds 5 to 10 kt, becoming NW. Seas 4 to 7 ft.
Slight chance of showers. Areas of fog with vsby 1 nm or less.
.WED...S to SW winds less than 10 kt, becoming S. Seas 3 to
5 ft. Areas of fog with vsby 1 nm or less.
.WED NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Areas of
fog with vsby 1 nm or less.
.THU...W to SW winds 5 to 10 kt. Seas 3 to 4 ft. Areas of fog
with vsby 1 nm or less.
.THU NIGHT...W to SW winds less than 5 kt, becoming N to NW.
Seas 3 to 4 ft.
.FRI...N to NE winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...Variable winds less than 5 kt, becoming NE. Seas
3 to 4 ft.
.SAT...E winds 5 to 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...E to SE winds 10 to 15 kt, diminishing to 5 to
10 kt. Seas 3 to 4 ft.
.SUN...E to SE winds 5 to 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...S winds 5 to 10 kt, becoming SW. Seas 4 to 5 ft.

$$

ANZ805-190830-
Georges Bank between Cape Cod and 68W north of 1000 FM-
423 PM EDT Tue Aug 18 2026

.TONIGHT...N to NW winds less than 10 kt. Seas 3 to 6 ft. Areas
of fog with vsby 1 nm or less.
.WED...Variable winds less than 10 kt, becoming S. Seas 3 to
4 ft. Areas of fog with vsby 1 nm or less.
.WED NIGHT...S winds 5 to 15 kt, becoming SW 5 to 10 kt. Seas
3 to 4 ft. Areas of fog with vsby 1 nm or less.
.THU...W to SW winds 5 to 10 kt. Seas 3 to 4 ft. Areas of fog
with vsby 1 nm or less.
.THU NIGHT...W to NW winds 5 to 10 kt. Seas 3 to 4 ft.
.FRI...N to NE winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...NE winds 5 to 10 kt, becoming E. Seas 3 to 4 ft.
.SAT...E winds 5 to 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...S to SE winds 5 to 15 kt. Seas 3 to 5 ft.
.SUN...S to SW winds 5 to 15 kt. Seas 4 to 5 ft.
.SUN NIGHT...S to SW winds 10 to 15 kt. Seas 4 to 6 ft.

$$

ANZ900-190830-
Georges Bank between 68W and the Hague Line-
423 PM EDT Tue Aug 18 2026

.TONIGHT...NW winds 5 to 10 kt. Seas 4 to 8 ft. Slight chance of
showers. Areas of fog with vsby 1 nm or less.
.WED...Variable winds less than 5 kt, becoming S to SW. Seas
3 to 5 ft. Areas of fog with vsby 1 nm or less.
.WED NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft. Areas of fog
with vsby 1 nm or less.
.THU...Variable winds less than 10 kt, becoming SW. Seas 3 to
4 ft. Areas of fog with vsby 1 nm or less.
.THU NIGHT...W to SW winds less than 10 kt. Seas 3 to 4 ft.
.FRI...Variable winds less than 5 kt, becoming N to NE. Seas
3 to 4 ft.
.FRI NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.
.SAT...E winds 5 to 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...S to SE winds 5 to 15 kt. Seas 3 to 5 ft.
.SUN...S winds 5 to 15 kt. Seas 4 to 5 ft.
.SUN NIGHT...S winds 10 to 15 kt. Seas 4 to 5 ft.

$$

ANZ810-190830-
South of New England between the Great South Channel and Montauk
Point to 1000 FM-
423 PM EDT Tue Aug 18 2026

.TONIGHT...N winds 5 to 10 kt, becoming variable. Seas 3 to
5 ft.
.WED...S to SW winds less than 10 kt. Seas 3 to 4 ft. Scattered
showers and tstms.
.WED NIGHT...W to SW winds 5 to 10 kt. Seas 3 to 4 ft.
.THU...W to SW winds 5 to 10 kt. Seas 3 to 4 ft.
.THU NIGHT...W to NW winds less than 10 kt, becoming variable.
Seas 3 to 4 ft.
.FRI...NE winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...NE winds 5 to 15 kt, becoming E 5 to 10 kt. Seas
3 to 4 ft.
.SAT...E winds 5 to 15 kt, becoming E to SE 5 to 10 kt. Seas
3 to 4 ft.
.SAT NIGHT...S to SE winds 5 to 15 kt, becoming SW. Seas 4 to
5 ft.
.SUN...S to SW winds 5 to 15 kt. Seas 4 to 5 ft.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft.

$$

ANZ815-190830-
South of Long Island between Montauk Point and Sandy Hook to
1000 FM-
423 PM EDT Tue Aug 18 2026

.TONIGHT...Variable winds less than 5 kt. Seas 3 to 4 ft. Chance
of tstms.
.WED...S winds less than 5 kt, becoming SW. Seas 3 to 4 ft.
Scattered showers and tstms.
.WED NIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft.
.THU...W winds 5 to 10 kt, becoming variable. Seas 3 to 4 ft.
Chance of tstms.
.THU NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft.
.FRI...NE winds 5 to 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...E to NE winds 5 to 10 kt. Seas 3 to 4 ft.
.SAT...E winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas 3 to
4 ft.
.SAT NIGHT...E winds less than 10 kt, becoming variable. Seas
4 to 5 ft.
.SUN...S winds less than 5 kt, becoming SW 5 to 15 kt. Seas 3 to
5 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Seas 4 to 6 ft.

$$

.Forecaster Kells. Ocean Prediction Center.