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National Weather Service Marine Forecast FZNT21 KWBC

FZNT21 KWBC 202109
OFFNT1

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
409 PM EST Mon Jan 20 2020

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.

ANZ898-210915-
409 PM EST Mon Jan 20 2020

SYNOPSIS FOR NEW ENGLAND WATERS
A low pressure trough along
Georges Bank will dissipate tonight. High pressure will continue
to build E over the waters tonight into Tue, then shift E of the
waters Tue night through Thu night while maintaining a ridge
over the area. The ridge will slowly dissipate Fri and Fri night.
A strong low pressure system will develop well S and SE of the
area Wed through Thu night, then shift well E of the area Fri
into Fri night. Another developing low pressure system will
approach the waters from the SW late Fri, then slowly move NE
into the central waters Fri night into Sat night.



ANZ800-210915-
Gulf of Maine to the Hague Line-
409 PM EST Mon Jan 20 2020

TONIGHT
N to NW winds 20 to 30 kt. Seas 5 to 9 ft. Light
freezing spray with vsby 1 nm or less.

TUE
N to NW winds 10 to 20 kt, becoming W to NW less than
10 kt. Seas 3 to 6 ft. Light freezing spray with vsby 1 nm or
less.

TUE NIGHT
Variable winds less than 10 kt. Seas 3 to 4 ft.
Light freezing spray with vsby 1 nm or less.

WED
Variable winds less than 10 kt, becoming S to SW. Seas
3 to 4 ft.

WED NIGHT
S to SW winds 5 to 15 kt. Seas 3 to 4 ft.

THU
SW winds 5 to 15 kt, diminishing to less than 10 kt. Seas
3 to 4 ft.

THU NIGHT
SW winds less than 10 kt, becoming variable. Seas
3 to 5 ft.

FRI
NE winds 5 to 15 kt. Seas 4 to 7 ft.

FRI NIGHT
NE winds 15 to 20 kt, diminishing to 10 to 15 kt.
Seas 5 to 9 ft.

SAT
E to NE winds 10 to 15 kt, becoming E 10 to 20 kt. Seas
6 to 10 ft.

SAT NIGHT
E winds 10 to 20 kt, becoming SE 15 to 25 kt. Seas
6 to 11 ft.



ANZ805-210915-
Georges Bank between Cape Cod and 68W north of 1000 FM-
409 PM EST Mon Jan 20 2020

TONIGHT
N winds 15 to 25 kt. Seas 6 to 10 ft.

TUE
N to NW winds 5 to 15 kt. Seas 3 to 6 ft.

TUE NIGHT
N to NW winds less than 10 kt. Seas 3 to 4 ft.

WED
N to NE winds less than 10 kt, becoming variable. Seas
3 to 4 ft.

WED NIGHT
E to NE winds 5 to 15 kt, becoming variable. Seas
3 to 5 ft.

THU
NE winds 5 to 15 kt, becoming variable. Seas 4 to 7 ft.

THU NIGHT
NE winds 5 to 15 kt, increasing to 10 to 20 kt.
Seas 4 to 8 ft.

FRI
NE winds 10 to 20 kt. Seas 6 to 11 ft.

FRI NIGHT
NE winds 15 to 20 kt, diminishing to 10 to 15 kt.
Seas 7 to 11 ft.

SAT
E to NE winds 15 to 20 kt. Seas 8 to 12 ft.

SAT NIGHT
E to SE winds 20 to 30 kt. Seas 9 to 14 ft.



ANZ900-210915-
Georges Bank between 68W and the Hague Line-
409 PM EST Mon Jan 20 2020

TONIGHT
N winds 15 to 25 kt. Seas 6 to 10 ft.

TUE
N winds 5 to 15 kt, diminishing to less than 10 kt. Seas
4 to 7 ft.

TUE NIGHT
E to NE winds less than 10 kt. Seas 3 to 5 ft.

WED
E to NE winds 5 to 10 kt, becoming NE 5 to 15 kt. Seas
3 to 4 ft.

WED NIGHT
E to NE winds 5 to 15 kt. Seas 3 to 6 ft.

THU
E to NE winds 5 to 15 kt. Seas 4 to 8 ft.

THU NIGHT
NE winds 5 to 15 kt, increasing to 10 to 20 kt.
Seas 5 to 9 ft.

FRI
NE winds 10 to 20 kt. Seas 7 to 12 ft.

FRI NIGHT
NE winds 15 to 20 kt. Seas 7 to 12 ft.

SAT
NE winds 15 to 20 kt, becoming E. Seas 8 to 12 ft.

SAT NIGHT
E winds 15 to 20 kt, becoming SE 15 to 25 kt. Seas
9 to 12 ft.



ANZ810-210915-
South of New England between the Great South Channel and Montauk
Point to 1000 FM-
409 PM EST Mon Jan 20 2020

TONIGHT
N winds 15 to 25 kt. Seas 5 to 9 ft.

TUE
N winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 3 to
6 ft.

TUE NIGHT
N winds 5 to 10 kt, becoming 5 to 15 kt. Seas 3 to
4 ft.

WED
NE winds 5 to 10 kt, becoming N to NE 5 to 15 kt. Seas
3 to 4 ft.

WED NIGHT
NE winds 5 to 15 kt. Seas 3 to 5 ft.

THU
NE winds 5 to 15 kt. Seas 4 to 6 ft.

THU NIGHT
NE winds 5 to 15 kt. Seas 4 to 8 ft.

FRI
NE winds 10 to 20 kt. Seas 6 to 11 ft.

FRI NIGHT
NE winds 10 to 20 kt, becoming 10 to 15 kt. Seas
6 to 11 ft.

SAT
E winds 15 to 20 kt, increasing to 20 to 30 kt. Seas 7 to
12 ft.

SAT NIGHT
E to SE winds 20 to 30 kt. Seas 9 to 15 ft.



ANZ815-210915-
South of Long Island between Montauk Point and Sandy Hook to
1000 FM-
409 PM EST Mon Jan 20 2020

TONIGHT
N winds 15 to 25 kt. Seas 5 to 8 ft.

TUE
N winds 10 to 20 kt, becoming 10 to 15 kt. Seas 3 to
5 ft.

TUE NIGHT
N winds 5 to 10 kt, increasing to 10 to 15 kt. Seas
3 to 4 ft.

WED
N to NE winds 5 to 15 kt, becoming 5 to 10 kt. Seas 3 to
4 ft.

WED NIGHT
N to NE winds 5 to 15 kt, becoming NE. Seas 3 to
4 ft.

THU
NE winds less than 10 kt. Seas 3 to 5 ft.

THU NIGHT
N to NE winds less than 10 kt. Seas 4 to 7 ft.

FRI
NE winds 5 to 15 kt. Seas 5 to 9 ft.

FRI NIGHT
E to NE winds 10 to 15 kt. Seas 6 to 10 ft.

SAT
E winds 20 to 30 kt. Seas 8 to 13 ft.

SAT NIGHT
E to SE winds 20 to 30 kt. Seas 10 to 15 ft.



.Forecaster Holley. Ocean Prediction Center.