


Offshore Forecast
Issued by NWS
Issued by NWS
957 FZNT34 KWBC 170826 OFFN32 Marine Weather HF Voice Broadcast NWS Ocean Prediction Center Washington DC 426 AM EDT Fri Oct 17 2025 West central North Atlantic continental shelf and slope waters beyond 20 nm to 250 nm offshore, including south of Georges Bank from 1000 fm to 250 nm offshore. Conditions given represent the highest within that period. 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. Locally higher winds and seas can be expected in and near tstms. .SYNOPSIS FOR MID ATLC WATERS...Developing low pressure to the E of the area this morning will drift S today, then slowly move well E of the region tonight through Sat night. Mariners should consider avoidance plans depending on their vessel type and cargo. High pressure will build E over the waters Sat into Sun, then shift E of the region late Sun and Sun night as a cold front moves offshore. The front will then move E across the waters Mon and early Mon night as a low pressure trough crosses the N waters. High pressure will briefly build E over the S waters Mon night, then weaken Tue while shifting S of the region. Another cold front will move offshore Tue night. Hudson Canyon to Baltimore Canyon including the waters west of 39.3N 71.9W...SW to 37.7N 72.9W .TODAY...N winds 20 to 30 kt. Seas 6 to 11 ft. .TONIGHT...N winds 10 to 20 kt, becoming 10 to 15 kt. Seas 6 to 10 ft. .SAT...N winds 5 to 15 kt, becoming variable. Seas 5 to 9 ft. .SAT NIGHT...S winds less than 10 kt, increasing to 5 to 15 kt. Seas 4 to 7 ft. .SUN...S winds 15 to 25 kt. Seas 4 to 8 ft. .SUN NIGHT...S winds 20 to 30 kt. Seas 6 to 10 ft. .MON...W winds 20 to 30 kt. Seas 6 to 10 ft. .MON NIGHT...W winds 15 to 25 kt. Seas 5 to 9 ft. .TUE...W to SW winds 10 to 15 kt, becoming S to SW 15 to 25 kt. Seas 3 to 6 ft. .TUE NIGHT...S winds 15 to 25 kt, becoming SW 15 to 20 kt. Seas 4 to 7 ft. Baltimore Canyon to the Hague Line south of 1000 fm ...STORM WARNING... .TODAY...N winds 30 to 40 kt, increasing to 40 to 55 kt. Seas 11 to 19 ft, building to 17 to 28 ft. Scattered showers and scattered tstms. .TONIGHT...N winds 35 to 45 kt. Seas 14 to 26 ft. Scattered showers. .SAT...N winds 30 to 40 kt, diminishing to 20 to 30 kt. Seas 12 to 21 ft. .SAT NIGHT...N winds 20 to 30 kt. Seas 9 to 16 ft. .SUN...N winds 10 to 20 kt, becoming S. Seas 6 to 11 ft. .SUN NIGHT...S winds 20 to 30 kt. Seas 6 to 10 ft. .MON...S winds 20 to 30 kt, becoming W to SW. Seas 6 to 11 ft. .MON NIGHT...W winds 15 to 25 kt. Seas 6 to 10 ft. .TUE...W to SW winds 10 to 20 kt. Seas 5 to 9 ft. .TUE NIGHT...S to SW winds 15 to 25 kt. Seas 5 to 8 ft. Baltimore Canyon to Hatteras Canyon out to 36N 70W to 34N 71W ...GALE WARNING... .TODAY...N winds 20 to 30 kt, increasing to 25 to 35 kt. Seas 10 to 18 ft. .TONIGHT...N winds 20 to 30 kt. Seas 12 to 18 ft. .SAT...N winds 15 to 25 kt. Seas 10 to 17 ft. .SAT NIGHT...N winds 5 to 15 kt, becoming variable. Seas 7 to 12 ft. .SUN...S winds 15 to 25 kt. Seas 6 to 10 ft. .SUN NIGHT...S to SW winds 20 to 30 kt. Seas 6 to 11 ft. .MON...W to SW winds 20 to 30 kt. Seas 6 to 11 ft. .MON NIGHT...W to NW winds 10 to 20 kt, becoming W 5 to 15 kt. Seas 6 to 10 ft. .TUE...W to SW winds 5 to 15 kt, becoming SW 10 to 20 kt. Seas 4 to 7 ft. .TUE NIGHT...SW winds 15 to 25 kt. Seas 4 to 8 ft. Hatteras Canyon to Cape Fear out to 34N 71W to 32N 73W .TODAY...N winds 20 to 30 kt. Seas 9 to 15 ft. .TONIGHT...N winds 15 to 25 kt. Seas 11 to 16 ft. .SAT...N winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 9 to 16 ft. .SAT NIGHT...N winds less than 10 kt, becoming variable. Seas 6 to 11 ft. .SUN...S winds 5 to 15 kt, becoming S to SW 15 to 25 kt. Seas 5 to 9 ft. .SUN NIGHT...S winds 20 to 30 kt, becoming SW. Seas 6 to 11 ft. .MON...W to SW winds 15 to 25 kt. Seas 6 to 10 ft. .MON NIGHT...W to NW winds 5 to 15 kt. Seas 4 to 8 ft. .TUE...W to SW winds 5 to 15 kt, becoming SW 10 to 20 kt. Seas 3 to 6 ft. .TUE NIGHT...SW winds 15 to 25 kt. Seas 4 to 8 ft. Cape Fear to 31N out to 32N 73W to 31N 74W .TODAY...N winds 15 to 25 kt. Seas 7 to 12 ft. .TONIGHT...N winds 10 to 20 kt. Seas 8 to 13 ft. .SAT...N winds 5 to 15 kt, diminishing to less than 10 kt. Seas 9 to 13 ft. .SAT NIGHT...Variable winds less than 10 kt, becoming S. Seas 6 to 11 ft. .SUN...S to SW winds 15 to 25 kt. Seas 5 to 9 ft. .SUN NIGHT...S to SW winds 20 to 30 kt. Seas 5 to 9 ft. .MON...W to NW winds 10 to 20 kt, becoming W to SW 5 to 15 kt. Seas 5 to 9 ft. .MON NIGHT...N to NW winds 5 to 15 kt, becoming variable less than 5 kt. Seas 3 to 6 ft. .TUE...W to SW winds less than 10 kt, becoming SW. Seas 3 to 5 ft. .TUE NIGHT...W to SW winds 15 to 25 kt. Seas 4 to 7 ft. .Forecaster Kells. Ocean Prediction Center.