Offshore Forecast
Issued by NWS

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
860
FZNT21 KWBC 162023
OFFNT1

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
423 PM EDT Fri May 16 2025

New England continental shelf and slope waters from 25 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.

ANZ898-170830-
423 PM EDT Fri May 16 2025

.SYNOPSIS FOR NEW ENGLAND WATERS...A stationary front will
continue S of the waters tonight, then lift NE over the area
as a warm front Sat into Sat night. Low pressure will move
offshore over the Gulf of Maine Sat night into Sun while pulling
a cold front across the region. The low will then drift off to
the E Sun night into Mon. 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 and Wed, then shift E of the area Wed night as a warm front
approaches from the SW.

$$

ANZ800-170830-
Gulf of Maine to the Hague Line-
423 PM EDT Fri May 16 2025

.TONIGHT...S winds 5 to 10 kt, becoming 5 to 15 kt. Seas 3 to
4 ft. Areas of fog early. Chance of showers. Vsby 1 NM or less.
.SAT...S winds 10 to 15 kt, becoming SE 10 to 20 kt. Seas 3 to
4 ft. Areas of fog. Showers likely. Isolated tstms. Vsby 1 NM or
less.
.SAT NIGHT...S winds 10 to 20 kt, becoming S to SW 5 to 15 kt.
Seas 3 to 5 ft. Scattered tstms. Showers likely. Patchy fog.
Vsby 1 NM or less.
.SUN...W winds 10 to 15 kt, becoming SW. Seas 3 to 5 ft.
Scattered showers and tstms with vsby 1 nm or less.
.SUN NIGHT...W to SW winds 10 to 20 kt, becoming W to NW. Seas
3 to 6 ft.
.MON...NW winds 10 to 20 kt. Seas 3 to 6 ft.
.MON NIGHT...N to NW winds 10 to 20 kt. Seas 3 to 6 ft.
.TUE...N winds 15 to 20 kt, becoming NE 10 to 20 kt. Seas 3 to
6 ft.
.TUE NIGHT...NE winds 10 to 20 kt. Seas 3 to 6 ft.
.WED...NE winds 10 to 15 kt, becoming E 10 to 20 kt. Seas 4 to
7 ft.
.WED NIGHT...E winds 15 to 25 kt. Seas 4 to 8 ft.

$$

ANZ805-170830-
Georges Bank between Cape Cod and 68W north of 1000 FM-
423 PM EDT Fri May 16 2025

.TONIGHT...S to SW winds 5 to 10 kt. Seas 3 to 5 ft. Areas of
fog early. Chance of showers and tstms. Vsby 1 NM or less.
.SAT...S to SE winds 10 to 15 kt, increasing to 15 to 20 kt.
Seas 3 to 4 ft. Areas of fog. Chance of showers. Slight chance
of tstms. Vsby 1 NM or less.
.SAT NIGHT...S to SW winds 10 to 20 kt, becoming SW 10 to 15 kt.
Seas 3 to 5 ft. Scattered showers and chance of tstms with vsby
1 nm or less.
.SUN...W winds 10 to 15 kt, becoming W to SW 10 to 20 kt. Seas
3 to 6 ft. Scattered showers and tstms with vsby 1 nm or less.
.SUN NIGHT...W winds 15 to 20 kt. Seas 4 to 7 ft.
.MON...W to NW winds 10 to 20 kt. Seas 4 to 7 ft.
.MON NIGHT...NW winds 10 to 20 kt. Seas 4 to 7 ft.
.TUE...N winds 10 to 20 kt. Seas 4 to 6 ft.
.TUE NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft.
.WED...NE winds 10 to 20 kt, becoming E 15 to 20 kt. Seas 4 to
7 ft.
.WED NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft.

$$

ANZ900-170830-
Georges Bank between 68W and the Hague Line-
423 PM EDT Fri May 16 2025

.TONIGHT...Variable winds less than 5 kt, becoming W to SW,
then, becoming S. Seas 4 to 5 ft. Areas of fog early. Chance of
showers and tstms. Vsby 1 NM or less.
.SAT...S to SE winds 5 to 15 kt, increasing to 10 to 20 kt. Seas
4 to 5 ft. Areas of fog. Chance of showers. Vsby 1 NM or less.
.SAT NIGHT...S winds 10 to 20 kt, becoming SW 10 to 15 kt. Seas
4 to 5 ft. Scattered showers and tstms. Patchy fog. Vsby 1 NM or
less.
.SUN...W to SW winds 10 to 20 kt. Seas 4 to 6 ft. Scattered
showers and tstms. Areas of fog. Vsby 1 NM or less.
.SUN NIGHT...W to SW winds 10 to 20 kt. Seas 5 to 7 ft.
.MON...W winds 15 to 25 kt. Seas 6 to 7 ft.
.MON NIGHT...W to NW winds 15 to 20 kt. Seas 5 to 8 ft.
.TUE...N to NW winds 10 to 20 kt. Seas 5 to 6 ft.
.TUE NIGHT...NE winds 10 to 20 kt. Seas 5 to 8 ft.
.WED...E to NE winds 15 to 20 kt. Seas 6 to 9 ft.
.WED NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft.

$$

ANZ810-170830-
South of New England between the Great South Channel and Montauk
Point to 1000 FM-
423 PM EDT Fri May 16 2025

.TONIGHT...S to SW winds 5 to 10 kt, becoming S 5 to 15 kt. Seas
3 to 5 ft. Areas of fog with vsby 1 nm or less early. Chance of
showers and tstms with vsby 1 nm or less.
.SAT...S winds 10 to 15 kt, becoming S to SW 10 to 20 kt. Seas
3 to 4 ft. Chance of showers. Slight chance of tstms. Vsby 1 NM
or less.
.SAT NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt. Seas
4 to 6 ft. Chance of showers and tstms with vsby 1 nm or less.
.SUN...W winds 15 to 20 kt. Seas 4 to 6 ft.
.SUN NIGHT...W winds 15 to 25 kt. Seas 5 to 7 ft.
.MON...W to NW winds 15 to 25 kt. Seas 4 to 8 ft.
.MON NIGHT...NW winds 10 to 20 kt. Seas 4 to 7 ft.
.TUE...NW winds 10 to 15 kt, becoming N. Seas 3 to 6 ft.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.WED...E winds 10 to 20 kt. Seas 4 to 7 ft.
.WED NIGHT...E to SE winds 20 to 30 kt. Seas 5 to 8 ft.

$$

ANZ815-170830-
South of Long Island between Montauk Point and Sandy Hook to
1000 FM-
423 PM EDT Fri May 16 2025

.TONIGHT...S winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas
3 to 4 ft. Chance of showers and scattered tstms with vsby 1 nm
or less.
.SAT...S to SW winds 10 to 20 kt. Seas 3 to 5 ft. Chance of
showers and tstms with vsby 1 nm or less.
.SAT NIGHT...SW winds 10 to 20 kt, becoming W 15 to 20 kt. Seas
4 to 6 ft. Chance of showers and tstms with vsby 1 nm or less.
.SUN...W winds 15 to 20 kt. Seas 4 to 6 ft.
.SUN NIGHT...W winds 15 to 20 kt, becoming NW 15 to 25 kt. Seas
4 to 7 ft.
.MON...NW winds 15 to 25 kt, becoming W 10 to 20 kt. Seas 4 to
7 ft.
.MON NIGHT...NW winds 15 to 20 kt. Seas 3 to 5 ft.
.TUE...N to NW winds 5 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...NE winds 5 to 15 kt. Seas 3 to 4 ft.
.WED...E winds 10 to 20 kt. Seas 3 to 6 ft.
.WED NIGHT...E to SE winds 20 to 30 kt. Seas 5 to 9 ft.

$$

.Forecaster Kells. Ocean Prediction Center.