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National Weather Service Marine Forecast FZNT21 KWBC

FZNT21 KWBC 210819
OFFNT1

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
419 AM EDT Mon Aug 21 2017

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.

ANZ898-212030-
419 AM EDT Mon Aug 21 2017

SYNOPSIS FOR NEW ENGLAND WATERS
A high pres ridge over the
waters will move offshore today, then shift SE of the area
tonight into Tue. A cold front will approach from the NW Tue
night into Wed, then pass SE across the waters late Wed into Thu.
A weak low pres trough will move E over the waters later Thu and
Thu night. Another ridge will build SE into the area Fri and Fri
night.



ANZ800-212030-
Gulf of Maine to the Hague Line-
419 AM EDT Mon Aug 21 2017

TODAY
W winds 5 to 10 kt, becoming SW 5 to 15 kt. Seas 2 to
3 ft.

TONIGHT
W to SW winds 10 to 15 kt. Seas 2 to 3 ft.

TUE
SW winds 10 to 15 kt, becoming S 15 to 25 kt. Seas 3 to
5 ft.

TUE NIGHT
S to SW winds 20 to 25 kt. Seas building to 5 to 9
ft. Areas of fog with VSBY 1 nm or less.

WED
SW winds 15 to 25 kt. Seas 5 to 9 ft.

WED NIGHT
SW winds diminishing to 5 to 15 kt, then becoming N
to NW. Seas subsiding to 3 to 6 ft.

THU
Variable winds less than 10 kt. Seas 2 to 4 ft.

THU NIGHT
Variable winds less than 10 kt, becoming N. Seas
2 to 3 ft.

FRI
N winds 5 to 15 kt. Seas 2 to 3 ft.

FRI NIGHT
N to NW winds less than 10 kt. Seas 2 to 3 ft.



ANZ805-212030-
Georges Bank between Cape Cod and 68W north of 1000 fm-
419 AM EDT Mon Aug 21 2017

TODAY
W to NW winds 5 to 10 kt, becoming W to SW 5 to 15 kt.
Seas 2 to 3 ft.

TONIGHT
W to SW winds 10 to 15 kt. Seas 2 to 4 ft.

TUE
SW winds 10 to 15 kt, increasing to 15 to 20 kt. Seas
3 to 5 ft.

TUE NIGHT
S to SW winds 15 to 25 kt. Seas 4 to 7 ft. Areas of
fog with VSBY 1 nm or less.

WED
S to SW winds 15 to 25 kt. Seas 4 to 7 ft.

WED NIGHT
W to SW winds diminishing to 10 to 15 kt, then
becoming W to NW 5 to 15 kt. Seas 3 to 5 ft.

THU
N to NW winds less than 10 kt. Seas 2 to 4 ft.

THU NIGHT
Variable winds less than 10 kt, becoming N. Seas
2 to 3 ft.

FRI
N to NE winds 5 to 10 kt, becoming N 5 to 15 kt. Seas
2 to 4 ft.

FRI NIGHT
N winds 5 to 10 kt, increasing to 10 to 15 kt. Seas
2 to 4 ft.



ANZ900-212030-
Georges Bank between 68W and the Hague Line-
419 AM EDT Mon Aug 21 2017

TODAY
NW winds 10 to 15 kt, becoming W 5 to 10 kt. Seas 2 to
4 ft.

TONIGHT
SW winds 10 to 15 kt, becoming W. Seas 3 to 4 ft.

TUE
SW winds 10 to 15 kt, increasing to 15 to 20 kt. Seas
3 to 5 ft.

TUE NIGHT
S winds 15 to 25 kt. Seas 4 to 7 ft.

WED
S to SW winds 15 to 25 kt. Seas 5 to 8 ft.

WED NIGHT
SW winds 10 to 20 kt, becoming W to SW 5 to 15 kt.
Seas 4 to 6 ft.

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

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

FRI
N winds 5 to 15 kt. Seas 3 to 4 ft.

FRI NIGHT
N winds 10 to 15 kt. Seas 3 to 4 ft.



ANZ810-212030-
South of New England between the Great South Channel and Montauk
Point to 1000 fm-
419 AM EDT Mon Aug 21 2017

TODAY
W to NW winds 5 to 10 kt, becoming W to SW 5 to 15 kt.
Seas 2 to 3 ft.

TONIGHT
SW winds 10 to 15 kt. Seas 2 to 4 ft.

TUE
SW winds 10 to 15 kt, increasing to 15 to 20 kt. Seas
3 to 5 ft.

TUE NIGHT
SW winds 15 to 25 kt. Seas 4 to 7 ft.

WED
SW winds 10 to 20 kt. Seas 4 to 6 ft.

WED NIGHT
W to SW winds 5 to 15 kt, becoming N. Seas 3 to
5 ft.

THU and THU NIGHT
N winds less than 10 kt. Seas 3 to 4 ft.

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

FRI NIGHT
NE winds 5 to 10 kt, becoming N to NE 5 to 15 kt.
Seas 2 to 4 ft.



ANZ815-212030-
South of Long Island between Montauk Point and Sandy Hook to
1000 fm-
419 AM EDT Mon Aug 21 2017

TODAY
W winds less than 10 kt, becoming SW. Seas 1 to 3 ft.

TONIGHT
SW winds increasing to 10 to 20 kt, then becoming 10
to 15 kt. Seas 2 to 3 ft.

TUE
S to SW winds 10 to 15 kt, increasing to 15 to 25 kt.
Seas building to 3 to 6 ft.

TUE NIGHT
SW winds 15 to 25 kt. Seas 4 to 7 ft.

WED
SW winds 10 to 20 kt, becoming W to SW 5 to 15 kt. Seas
4 to 6 ft.

WED NIGHT
W winds 5 to 10 kt, becoming N 5 to 15 kt. Seas
2 to 4 ft.

THU
N to NE winds 5 to 15 kt, becoming variable. Seas 2 to
4 ft.

THU NIGHT
Variable winds less than 10 kt, becoming N. Seas
2 to 3 ft.

FRI
N winds 5 to 15 kt. Seas 2 to 4 ft.

FRI NIGHT
N to NE winds less than 10 kt, increasing to 5 to
15 kt. Seas 2 to 4 ft.



.Forecaster Scovil. Ocean Prediction Center.