National Weather Service Marine Forecast FZNT23 KWNM

FZNT23 KWNM 162021
OFFN01

NAVTEX Marine Forecast for NE US waters
NWS Ocean Prediction Center Washington DC
421 PM EDT Wed Sep 16 2026

Conditions given represent the highest within that period.

Locally higher winds and seas can be expected in and near tstms.

Please refer to Coastal Waters Forecasts (CWF) available through NOAA Weather Radio and other means for detailed coastal waters forecasts

SYNOPSIS
High pressure will continue across the waters tonight into Thu, then shift E of the region Thu night. A stationary front will persist SE of the area tonight into Fri while a series of weak low pressure centers track NE along the boundary. A low pressure trough will persist along the Maine coast tonight into Thu. A strong cold front will move S over the region Fri. Another high will build SE across the region Fri night into Sat, then shift E of the waters Sat night. A warm front will lift N through the area Sun and Sun night, before low pressure moves SE through the waters Sun night and Mon while pulling a cold front over the area. Yet another high will build SE towards the region Mon night.

Eastport Maine to Cape Cod

TONIGHT
SW winds 5 to 15 kt. Seas 3 to 4 ft.

THU
S winds 5 to 15 kt. Seas 3 to 4 ft.

THU NIGHT
SW winds 10 to 20 kt. Seas 3 to 4 ft. Chance of showers with vsby 1 nm or less.

FRI
NW winds 10 to 20 kt. Seas 3 to 4 ft.

FRI NIGHT
N winds 15 to 25 kt. Seas 4 to 6 ft.

SAT
Variable winds 10 to 20 kt. Seas 3 to 5 ft.

SAT NIGHT
S winds less than 10 kt. Seas 3 to 4 ft.

SUN
S winds 5 to 15 kt. Seas 3 ft.

SUN NIGHT
N winds 5 to 15 kt. Seas 3 to 4 ft.

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

MON NIGHT
NE winds 10 to 20 kt. Seas 3 to 5 ft.

Cape Cod to Nantucket Shoals and Georges Bank

TONIGHT
Variable winds less than 10 kt. Seas 3 to 6 ft.

THU
Variable winds less than 10 kt. Seas 3 to 4 ft.

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

FRI
W to NW winds 10 to 20 kt. Seas 3 to 5 ft.

FRI NIGHT
N to NE winds 10 to 20 kt. Seas 4 to 6 ft.

SAT
NE winds 10 to 20 kt. Seas 4 to 6 ft.

SAT NIGHT
E winds 10 to 20 kt. Seas 3 to 6 ft.

SUN
SE winds 5 to 15 kt. Seas 3 to 5 ft.

SUN NIGHT
N winds 5 to 15 kt. Seas 3 to 6 ft.

MON
E to NE winds 10 to 20 kt. Seas 4 to 7 ft.

MON NIGHT
NE winds 15 to 25 kt. Seas 3 to 5 ft.

South of New England

TONIGHT
SW winds 5 to 15 kt. Seas 3 to 4 ft.

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

THU NIGHT
SW winds 10 to 20 kt. Seas 3 to 4 ft.

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

FRI NIGHT
NE winds 10 to 20 kt. Seas 3 to 6 ft.

SAT
E to NE winds 10 to 20 kt. Seas 4 to 7 ft.

SAT NIGHT
SE winds 5 to 15 kt. Seas 3 to 6 ft.

SUN
S winds 10 to 20 kt. Seas 3 to 5 ft.

SUN NIGHT
N to NE winds 10 to 20 kt. Seas 4 to 6 ft.

MON
E to NE winds 10 to 20 kt. Seas 4 to 6 ft.

MON NIGHT
E to NE winds 15 to 25 kt. Seas 4 to 6 ft.