


Offshore Forecast
Issued by NWS
Issued by NWS
137 FZNT34 KWBC 250242 OFFN32 Marine Weather HF Voice Broadcast NWS Ocean Prediction Center Washington DC 1042 PM EDT Sun Aug 24 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...Low pressure about 100 nm NE of Cape Hatteras continues to strengthen with winds and seas likely increasing near the low and over the gulf stream area tonight. Improving conditions will gradually develop Mon as the low passes N of the waters early Mon. A trailing cold front will move from the inner to the outer waters later tonight into Mon. Another cold front will approach the region from the NW tonight into Mon, gradually push E and SE across the waters Mon night into Tue night, then stall across the S portions Wed into Fri night. High pressure will build SE behind the front across the waters Tue into Thu, then shift E of the area Thu night into Fri. Another cold front will approach from the NW Fri and Fri night. Mariners should use caution for locally very gusty winds and very rough seas in and near tstms across many parts of the offshore waters tonight and Mon. Hudson Canyon to Baltimore Canyon including the waters west of 39.3N 71.9W...SW to 37.7N 72.9W .TONIGHT...E to NE winds 10 to 20 kt, becoming N. Seas 4 to 8 ft. Chance of showers and tstms. .MON...W to NW winds 5 to 15 kt, becoming W to SW. Seas 4 to 8 ft. .MON NIGHT...W winds 5 to 15 kt, becoming NW 10 to 15 kt. Seas 3 to 6 ft. .TUE...N winds 5 to 10 kt, becoming variable. Seas 3 to 4 ft. .TUE NIGHT...W winds less than 10 kt, becoming N to NW. Seas 3 to 4 ft. .WED...N to NW winds less than 10 kt. Seas 2 to 4 ft. .WED NIGHT...W to SW winds 5 to 10 kt, becoming NW. Seas 2 to 4 ft. .THU...W to NW winds 5 to 10 kt, becoming S to SW 10 to 20 kt. Seas 3 to 4 ft. .THU NIGHT...SW winds 5 to 15 kt, becoming W to SW 5 to 10 kt. Seas 3 to 4 ft. .FRI...W to NW winds 5 to 10 kt. Seas 2 to 4 ft. .FRI NIGHT...S to SW winds 5 to 10 kt, becoming W. Seas 2 to 4 ft. Baltimore Canyon to the Hague Line south of 1000 fm ...GALE WARNING... .TONIGHT...S winds 25 to 35 kt. Seas 8 to 14 ft. Rain and chance of tstms. .MON...S to SW winds 25 to 35 kt. Seas 8 to 14 ft. Scattered showers and tstms. .MON NIGHT...Winds diminishing to W 15 to 25 kt, then to 5 to 15 kt. Seas 7 to 11 ft. Chance of showers and tstms. .TUE...W to SW winds 5 to 15 kt, becoming variable. Seas subsiding to 3 to 6 ft. Chance of showers and tstms. .TUE NIGHT...Variable winds less than 10 kt, increasing to 5 to 15 kt. Seas 3 to 6 ft. .WED...Variable winds 5 to 15 kt, becoming N to NW. Seas 3 to 4 ft. .WED NIGHT...N to NW winds 5 to 15 kt. Seas 3 to 4 ft. .THU...N to NW winds less than 10 kt, becoming variable. Seas 2 to 4 ft. .THU NIGHT and FRI...Variable winds 5 to 10 kt. Seas 2 to 4 ft. .FRI NIGHT...E to NE winds 5 to 10 kt. Seas 2 to 4 ft. Baltimore Canyon to Hatteras Canyon out to 36N 70W to 34N 71W ...GALE WARNING... .TONIGHT...S winds 25 to 35 kt, becoming W to SW. Seas 7 to 13 ft. Scattered showers and tstms. .MON...W to SW winds diminishing to 10 to 20 kt, then to 5 to 15 kt. Seas 6 to 10 ft. Scattered showers and tstms. .MON NIGHT...SW winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas becoming 4 to 8 ft. Scattered showers and tstms. .TUE...SW winds 5 to 15 kt. Seas 3 to 6 ft. Scattered showers and tstms. .TUE NIGHT...N winds 5 to 15 kt. Seas 3 to 5 ft. .WED...N winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 3 to 4 ft. .WED NIGHT...N to NE winds 5 to 15 kt. Seas 3 to 4 ft. .THU...E to NE winds 5 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...E winds 5 to 15 kt, diminishing to less than 10 kt. Seas 3 to 4 ft. .FRI...NE winds 5 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...NE winds 5 to 10 kt. Seas 2 to 4 ft. Hatteras Canyon to Cape Fear out to 34N 71W to 32N 73W .TONIGHT...S to SW winds 15 to 25 kt. Seas 6 to 11 ft. Scattered showers and tstms. .MON...SW winds 15 to 25 kt. Seas 5 to 9 ft. Scattered showers and tstms. .MON NIGHT...SW winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 4 to 8 ft. Scattered showers and tstms. .TUE...SW winds 10 to 20 kt. Seas 3 to 6 ft. Scattered showers and tstms. .TUE NIGHT...W to SW winds 5 to 15 kt. Seas 3 to 5 ft. .WED...N to NE winds 10 to 20 kt. Seas 3 to 4 ft. .WED NIGHT...NE winds 10 to 20 kt, becoming E to NE 5 to 15 kt. Seas 3 to 4 ft. .THU...E winds 5 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...E to NE winds 5 to 15 kt. Seas 3 to 5 ft. .FRI and FRI NIGHT...NE winds 5 to 15 kt. Seas 3 to 5 ft. Cape Fear to 31N out to 32N 73W to 31N 74W .TONIGHT...W to SW winds 15 to 25 kt. Seas 6 to 10 ft. Scattered showers and tstms. .MON...W to SW winds 15 to 25 kt. Seas 5 to 9 ft. Scattered tstms and chance of showers. .MON NIGHT...W to SW winds 10 to 20 kt. Seas 4 to 8 ft. Scattered showers and tstms. .TUE...SW winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 3 to 6 ft. Scattered showers and tstms. .TUE NIGHT...W to SW winds 5 to 15 kt. Seas 3 to 5 ft. .WED...N to NE winds 5 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...E to NE winds 5 to 15 kt. Seas 3 to 4 ft. .THU...E winds 10 to 20 kt, becoming E to NE 5 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...E to NE winds 5 to 15 kt. Seas 3 to 5 ft. .FRI...NE winds 5 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...NE winds 5 to 15 kt. Seas 3 to 6 ft. .Forecaster Mills. Ocean Prediction Center.