NAVTEX Marine Forecast (Boston, MA)

FZNT23 KWNM 200348
OFFN01

NAVTEX Marine Forecast for NE US waters
NWS Ocean Prediction Center Washington DC
1148 PM EDT Sat Sep 19 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 shift E of the waters late
tonight. A warm front will lift N into the area Sun and Sun
night, before low pressure moves E across the far S waters late
Sun night and Mon while pulling a cold front over the area. The
cold front will stall S of the area Mon night through Tue night
as low pressure develops along the boundary, then lifts slowly N
towards the waters Wed and Wed night. Strong high pressure will
build N of the region Tue and Tue night, then continue Wed into
Thu night. Strengthening low pressure will likely remain just S
of the region Thu into Thu night.  

Eastport Maine to Cape Cod

.TONIGHT...Variable winds less than 10 kt, becoming S to SE.
Seas 3 to 4 ft. 
.SUN...S to SE winds 5 to 15 kt. Seas 3 to 4 ft. Showers likely.
.SUN NIGHT...E to NE winds 10 to 20 kt. Seas 3 to 4 ft. Showers.
.MON...N to NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.MON NIGHT...NE winds 10 to 20 kt. Seas 3 to 6 ft. 
.TUE...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.TUE NIGHT...E to NE winds 15 to 25 kt. Seas 4 to 8 ft. 
.WED...E to NE winds 20 to 30 kt. Seas 6 to 10 ft. 
.WED NIGHT...E to NE winds 20 to 30 kt. Seas 8 to 13 ft. 
.THU...E to NE winds 20 to 30 kt. Seas 11 to 19 ft. 
.THU NIGHT...NE winds 20 to 30 kt. Seas 12 to 17 ft. 

Cape Cod to Nantucket Shoals and Georges Bank

...GALE FORCE WINDS POSSIBLE TUE...

.TONIGHT...E winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas
4 to 7 ft. 
.SUN...SE winds 10 to 20 kt. Seas 3 to 6 ft. 
.SUN NIGHT...E winds 5 to 15 kt. Seas 3 to 5 ft. Showers and
scattered tstms. 
.MON...NE winds 15 to 25 kt. Seas 3 to 6 ft. Scattered showers
and tstms. 
.MON NIGHT...NE winds 15 to 25 kt. Seas 4 to 7 ft. 
.TUE...E to NE winds 25 to 35 kt. Seas 6 to 10 ft. 
.TUE NIGHT...E winds 30 to 40 kt. Seas 8 to 13 ft. 
.WED...E winds 30 to 40 kt. Seas 9 to 16 ft. 
.WED NIGHT...E winds 30 to 40 kt. Seas 12 to 17 ft. 
.THU...E to SE winds 30 to 40 kt. Seas 13 to 19 ft. 
.THU NIGHT...S to SE winds 30 to 40 kt. Seas 12 to 19 ft. 

South of New England

...GALE FORCE WINDS POSSIBLE TUE...

.TONIGHT...E winds 5 to 15 kt. Seas 4 to 7 ft. 
.SUN...S to SE winds 10 to 20 kt. Seas 3 to 6 ft. Slight chance
of showers. 
.SUN NIGHT...N winds 10 to 20 kt. Seas 3 to 5 ft. Scattered
showers and slight chance of tstms. 
.MON...NE winds 15 to 25 kt. Seas 4 to 6 ft. Chance of showers. 
.MON NIGHT...E to NE winds 20 to 30 kt. Seas 5 to 8 ft. 
.TUE...NE winds 25 to 35 kt. Seas 7 to 11 ft. 
.TUE NIGHT...E to NE winds 30 to 40 kt. Seas 8 to 13 ft. 
.WED...E to NE winds 30 to 40 kt. Seas 10 to 16 ft. 
.WED NIGHT...E to NE winds 30 to 40 kt. Seas 13 to 18 ft. 
.THU...NE winds 30 to 40 kt. Seas 14 to 19 ft. 
.THU NIGHT...NE winds 30 to 40 kt. Seas 12 to 19 ft.