Offshore Forecast
Issued by NWS
Issued by NWS
227 FZNT33 KWBC 191432 OFFN31 Marine Weather HF Voice Broadcast NWS Ocean Prediction Center Washington DC 932 AM EST Sun Jan 19 2025 New England continental shelf and slope waters from 25 nm offshore to the Hague Line, except to 1000 fm south of New England. 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 NEW ENGLAND WATERS...A cold front will move E and SE across the waters today as intense low pressure tracks NE while passing to the SE and then E of the waters. The next intensifying low will move NE towards the region today from the Carolina coast, with the low continuing to strengthen while crossing the area tonight, before moving NE of the region Mon and Mon night while pulling a series of low pressure troughs or cold fronts across the waters. A strong high pressure ridge will build E toward the region Mon and Mon night, move offshore Tue, and then drift N Tue night and Wed. Another low will develop and pass S of the waters Tue night, then strengthen to the SE and E of the waters Wed before moving well off to the E of the area Wed night and Thu. High pressure will slowly build E over the region Wed and Wed night, and then weaken while shifting E of the area Thu and Thu night. Yet another low will develop S of the waters Thu and Thu night while tracking NE towards the area. Gulf of Maine to the Hague Line ...GALE WARNING... .TODAY...N to NW winds 5 to 15 kt. Seas 4 to 8 ft. Rain and snow likely. .TONIGHT...N to NE winds increasing to 20 to 30 kt, then becoming N to NW 25 to 35 kt. Seas building to 6 to 11 ft. Snow, rain and light freezing spray with vsby 1 nm or less. .MON...W to NW winds 20 to 30 kt. Seas 7 to 12 ft. Light freezing spray and chance of snow. .MON NIGHT...W to NW winds 20 to 30 kt. Seas 7 to 12 ft. Light freezing spray. .TUE...W winds 15 to 25 kt. Seas subsiding to 5 to 9 ft. .TUE NIGHT...W to NW winds 15 to 20 kt. Seas 4 to 8 ft. .WED...N to NW winds 10 to 20 kt, becoming 10 to 15 kt. Seas 3 to 6 ft. .WED NIGHT...NW winds 10 to 15 kt, becoming W 5 to 15 kt. Seas 3 to 5 ft. .THU...W winds 15 to 20 kt, becoming SW 15 to 25 kt. Seas 3 to 6 ft. .THU NIGHT...W to SW winds 15 to 20 kt, becoming W 10 to 15 kt. Seas 4 to 7 ft. Georges Bank...from the Northeast Channel to the Great South Channel including waters east of Cape Cod...to the Hague Line ...GALE WARNING... .TODAY...W winds 5 to 15 kt. Seas 6 to 10 ft. Areas of fog with vsby 1 nm or less. .TONIGHT...S to SE winds increasing to 20 to 30 kt, then becoming W to SW 25 to 35 kt. Seas building to 8 to 14 ft. Chance of rain and snow with vsby 1 nm or less. .MON...W winds 25 to 35 kt. Seas 8 to 15 ft. Light freezing spray and chance of snow. .MON NIGHT...W winds 20 to 30 kt. Seas 8 to 14 ft. Light freezing spray. .TUE...W winds 15 to 25 kt. Seas subsiding to 6 to 10 ft. .TUE NIGHT...W winds 15 to 20 kt, becoming NW. Seas becoming 4 to 8 ft. .WED...NW winds 10 to 20 kt, becoming N 15 to 25 kt. Seas 3 to 6 ft. .WED NIGHT...N winds 10 to 20 kt, becoming W to NW 5 to 10 kt. Seas 4 to 7 ft. .THU...W winds 5 to 15 kt, becoming SW 10 to 20 kt. Seas 3 to 6 ft. .THU NIGHT...W to SW winds 10 to 15 kt. Seas 4 to 7 ft. South of New England...from the Great South Channel to Hudson Canyon including the waters south of Marthas Vineyard and Nantucket Island...out to 1000 fm ...GALE WARNING... .TODAY...N to NW winds 5 to 10 kt, becoming E 10 to 20 kt. Seas 4 to 8 ft. Rain and slight chance of snow. .TONIGHT...SW winds increasing to 20 to 30 kt, then becoming W to NW 25 to 35 kt. Seas building to 8 to 13 ft. Rain and chance of snow. .MON...W to NW winds 25 to 35 kt, becoming W 20 to 25 kt. Seas 8 to 13 ft. Light freezing spray. .MON NIGHT...W winds 15 to 25 kt. Seas 6 to 11 ft. Light freezing spray and slight chance of snow. .TUE...W winds 15 to 20 kt. Seas subsiding to 4 to 8 ft. .TUE NIGHT...N to NW winds 10 to 20 kt. Seas 3 to 6 ft. .WED...N winds 15 to 25 kt. Seas 3 to 6 ft. .WED NIGHT...N winds 5 to 15 kt, becoming W to NW 5 to 10 kt. Seas 3 to 6 ft. .THU...W to SW winds 5 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...W winds 10 to 15 kt, becoming NW. Seas 3 to 6 ft. .Forecaster Mills. Ocean Prediction Center.