FZNT23 KWNM 192109

OFFN01



NAVTEX Marine Forecast for NE US waters

NWS Ocean Prediction Center Washington DC

509 PM EDT Tue Aug 19 2025



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 over the region will gradually shift E

of the area tonight through Wed night. Hurricane Erin is expected

to pass NE through the Outer Mid- Atlantic Waters Thu night into

Fri, remaining S of the waters, then move farther away from the

area Fri night into Sat. Long period S swell from Hurricane Erin

will continue through Thu night before backing to the SE and E

Fri night. A high pressure ridge will move E across the waters

Fri night and Sat, then shift E of the area Sat night into Sun. A

cold front will near the region from the W by Sun night. For more

information on Hurricane Erin, please closely monitor the latest

forecasts from the National Hurricane Center. 



Eastport Maine to Cape Cod



...TROPICAL STORM CONDITIONS POSSIBLE FRI...



.TONIGHT...S to SE winds less than 10 kt. Seas 3 to 5 ft. 

.WED...E to SE winds 5 to 15 kt. Seas 4 to 6 ft. 

.WED NIGHT...E winds 5 to 15 kt. Seas 4 to 8 ft. Chance of

showers. 

.THU...E winds 10 to 20 kt. Seas 7 to 13 ft. Chance of rain. 

.THU NIGHT...NE winds 20 to 30 kt. Seas 11 to 19 ft. 

.FRI...NE winds 25 to 35 kt. Seas 15 to 21 ft. 

.FRI NIGHT...N winds 20 to 30 kt. Seas 11 to 19 ft. 

.SAT...S winds 10 to 20 kt. Seas 8 to 13 ft. 

.SAT NIGHT...S winds 10 to 20 kt. Seas 6 to 10 ft.

.SUN...S winds 10 to 20 kt. Seas 5 to 8 ft. 

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



Cape Cod to Nantucket Shoals and Georges Bank



...TROPICAL STORM WARNING...

...HURRICANE CONDITIONS POSSIBLE THU NIGHT...



.TONIGHT...E winds 5 to 15 kt. Seas 6 to 10 ft. 

.WED...E winds 10 to 20 kt. Seas 7 to 12 ft. 

.WED NIGHT...E winds 15 to 25 kt. Seas 10 to 18 ft. Scattered

showers and tstms. 

.THU...E winds 35 to 45 kt. Seas 17 to 31 ft. Showers and tstms.

.THU NIGHT...E to NE winds 50 to 70 kt. Seas 25 to 40 ft. 

.FRI...N winds 55 to 70 kt. Seas 25 to 39 ft. 

.FRI NIGHT...N winds 30 to 40 kt. Seas 15 to 27 ft. 

.SAT...N to NE winds 15 to 25 kt. Seas 11 to 18 ft. 

.SAT NIGHT...S to SE winds 5 to 15 kt. Seas 7 to 12 ft. 

.SUN...S winds 5 to 15 kt. Seas 6 to 9 ft. 

.SUN NIGHT...S winds 10 to 15 kt. Seas 5 to 8 ft. 



South of New England



...TROPICAL STORM WARNING...



.TONIGHT...E winds 5 to 15 kt. Seas 6 to 10 ft. 

.WED...E winds 10 to 20 kt. Seas 7 to 12 ft. Chance of showers. 

.WED NIGHT...E winds 15 to 25 kt. Seas 11 to 19 ft. Chance of

showers and scattered tstms. 

.THU...E to NE winds 35 to 45 kt. Seas 17 to 32 ft. Showers and

tstms. 

.THU NIGHT...N to NE winds 40 to 55 kt. Seas 26 to 36 ft. 

.FRI...N winds 30 to 40 kt. Seas 17 to 28 ft. 

.FRI NIGHT...N to NE winds 20 to 30 kt. Seas 12 to 19 ft. 

.SAT...S to SE winds 15 to 25 kt. Seas 9 to 14 ft. 

.SAT NIGHT...S winds 5 to 15 kt. Seas 6 to 11 ft. 

.SUN...S winds 5 to 15 kt. Seas 5 to 9 ft. 

.SUN NIGHT...S winds 5 to 15 kt. Seas 5 to 8 ft.