


Offshore Forecast
Issued by NWS
Issued by NWS
043 FZNT22 KWBC 180858 OFFNT2 Offshore Waters Forecast NWS Ocean Prediction Center Washington DC 458 AM EDT Mon Aug 18 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. 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. ANZ899-182000- 458 AM EDT Mon Aug 18 2025 .SYNOPSIS FOR MID ATLC WATERS...Low pressure just E of the S waters will lift slowly NE along a stationary front today and tonight while a cold front moves S into the N waters. The cold front will become stationary across the central waters tonight through Tue night. High pressure will build S into the N waters behind the front, then move NE away from the area Wed. Hurricane Erin, currently well SE of the waters, will track N into the outer S waters on Wed, then turn NE and move through the outer central waters Thu, and the Outer Mid- Atlantic Waters Thu night into Fri. Long period SE to S swell from Erin, already affecting the S waters, will spread N into the central and N waters late tonight through Tue night. Significant swell will continue through Fri night while gradually backing to the E Wed through Thu night. For more information on Hurricane Erin, please closely monitor the latest forecasts from the National Hurricane Center. $$ ANZ820-182000- Hudson Canyon to Baltimore Canyon to 1000 FM- 458 AM EDT Mon Aug 18 2025 .TODAY...N to NE winds 20 to 30 kt. Seas 4 to 8 ft. Isolated showers and tstms. .TONIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft. Scattered showers and tstms. .TUE...E winds 15 to 20 kt. Seas 6 to 10 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 6 to 10 ft. .WED...E winds 10 to 15 kt, increasing to 15 to 20 kt. Seas 8 to 13 ft. .WED NIGHT...E winds 15 to 20 kt, becoming NE 15 to 25 kt. Seas 12 to 20 ft. .THU...NE winds 20 to 30 kt. Seas 14 to 23 ft. .THU NIGHT...N to NE winds 20 to 30 kt. Seas 13 to 22 ft. .FRI...N to NE winds 10 to 20 kt, becoming NE 5 to 15 kt. Seas 9 to 16 ft. .FRI NIGHT...S to SE winds 5 to 15 kt, becoming S. Seas 6 to 11 ft. $$ ANZ915-182000- Between 1000FM and 38.5 N west of 69 W- 458 AM EDT Mon Aug 18 2025 ...TROPICAL STORM CONDITIONS POSSIBLE THU... .TODAY...W to NW winds less than 10 kt, becoming NE 15 to 25 kt. Seas 4 to 8 ft. Isolated showers and tstms. .TONIGHT...E to NE winds 15 to 25 kt. Seas 7 to 9 ft. Isolated showers and tstms. .TUE...E winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas 7 to 9 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 7 to 10 ft. .WED...E winds 15 to 20 kt. Seas 9 to 13 ft. .WED NIGHT...E winds 15 to 25 kt. Seas 11 to 19 ft. .THU...Tropical storm conditions possible. .THU NIGHT...Tropical storm conditions possible. .FRI...N winds 20 to 30 kt. Seas 12 to 21 ft. .FRI NIGHT...NE winds 10 to 20 kt, becoming variable 5 to 15 kt. Seas 9 to 15 ft. $$ ANZ920-182000- Baltimore Canyon to 69W east of 1000 FM and south of 38.5N to 250 NM offshore- 458 AM EDT Mon Aug 18 2025 ...HURRICANE CONDITIONS POSSIBLE THU NIGHT... .TODAY...Variable winds less than 10 kt, becoming NE, then, becoming E to NE 10 to 20 kt. Seas 4 to 7 ft. Isolated showers and tstms. .TONIGHT...E to NE winds 15 to 25 kt. Seas 6 to 9 ft. Scattered showers and tstms. .TUE...E winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas 8 to 10 ft. Scattered showers and tstms. .TUE NIGHT...E winds 10 to 15 kt. Seas 9 to 11 ft. Scattered showers and tstms. .WED...E winds 10 to 15 kt, becoming 10 to 20 kt. Seas 10 to 15 ft. .WED NIGHT...E winds 20 to 30 kt. Seas 13 to 19 ft, building to 15 to 27 ft. .THU...Tropical storm conditions possible. .THU NIGHT...Hurricane conditions possible. .FRI...N winds 20 to 30 kt. Seas 13 to 22 ft. .FRI NIGHT...NE winds 10 to 20 kt, diminishing to 5 to 15 kt. Seas 9 to 16 ft. $$ ANZ905-182000- East of 69W to the Hague Line between 1000 FM and 39N- 458 AM EDT Mon Aug 18 2025 ...HURRICANE CONDITIONS POSSIBLE THU NIGHT... .TODAY...W winds 5 to 10 kt, becoming N to NE 10 to 20 kt. Seas 4 to 7 ft. Isolated showers and tstms. .TONIGHT...NE winds 15 to 20 kt. Seas 5 to 8 ft. .TUE...E winds 10 to 15 kt. Seas 5 to 8 ft. .TUE NIGHT...E winds 5 to 15 kt. Seas 6 to 9 ft. .WED...E winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 7 to 11 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 10 to 17 ft. .THU...E winds 20 to 30 kt. Seas 16 to 26 ft. .THU NIGHT...Hurricane conditions possible. .FRI...Tropical storm conditions possible. .FRI NIGHT...N to NE winds 20 to 30 kt. Seas 12 to 20 ft. $$ ANZ910-182000- East of 69W and south of 39N to 250 NM offshore- 458 AM EDT Mon Aug 18 2025 ...HURRICANE CONDITIONS POSSIBLE THU NIGHT... .TODAY...Variable winds less than 10 kt, becoming N to NE, then, becoming NE 10 to 20 kt. Seas 4 to 7 ft. Isolated showers and tstms. .TONIGHT...NE winds 15 to 20 kt. Seas 5 to 8 ft. Scattered showers and tstms. .TUE...E winds 10 to 15 kt. Seas 7 to 9 ft. Scattered showers and tstms. .TUE NIGHT...E winds 10 to 15 kt. Seas 8 to 10 ft. Scattered showers and tstms. .WED...E winds 10 to 20 kt. Seas 8 to 13 ft. .WED NIGHT...E winds 15 to 25 kt. Seas 13 to 21 ft. .THU...Tropical storm conditions possible. .THU NIGHT...Hurricane conditions possible. .FRI...Tropical storm conditions possible. .FRI NIGHT...N winds 20 to 30 kt, becoming N to NE 10 to 20 kt. Seas 12 to 19 ft. $$ ANZ825-182000- Baltimore Canyon to Cape Charles Light to 100 NM offshore- 458 AM EDT Mon Aug 18 2025 .TODAY...SW winds less than 10 kt, becoming N to NE, then, becoming E to NE 10 to 20 kt. Seas 3 to 6 ft. Isolated showers and tstms. .TONIGHT...E winds 10 to 20 kt. Seas 5 to 9 ft. Scattered showers and tstms. .TUE...E winds 10 to 20 kt. Seas 6 to 10 ft. Scattered showers and tstms. .TUE NIGHT...E winds 15 to 20 kt, diminishing to 10 to 15 kt. Seas 7 to 11 ft. Scattered showers and tstms. .WED...E winds 10 to 15 kt, increasing to 15 to 20 kt. Seas 9 to 15 ft. .WED NIGHT...NE winds 20 to 30 kt. Seas 14 to 23 ft. .THU...NE winds 25 to 30 kt, becoming N. Seas 15 to 25 ft. .THU NIGHT...N winds 20 to 30 kt. Seas 12 to 20 ft. .FRI...N winds 10 to 20 kt, becoming NE 5 to 10 kt. Seas 9 to 15 ft. .FRI NIGHT...E to SE winds 5 to 10 kt. Seas 6 to 11 ft. $$ ANZ828-182000- Cape Charles Light to Currituck Beach Light to 100 NM offshore- 458 AM EDT Mon Aug 18 2025 .TODAY...Variable winds less than 10 kt, becoming E to NE. Seas 3 to 6 ft. .TONIGHT...E winds 5 to 10 kt, becoming 5 to 15 kt. Seas 4 to 8 ft. Scattered showers and tstms. .TUE...E winds 10 to 15 kt. Seas 6 to 11 ft. Scattered showers and tstms. .TUE NIGHT...E winds 10 to 20 kt. Seas 7 to 13 ft. Scattered showers and tstms. .WED...E to NE winds 15 to 25 kt. Seas 11 to 19 ft. .WED NIGHT...NE winds 20 to 30 kt. Seas 15 to 27 ft. .THU...N to NE winds 25 to 30 kt. Seas 13 to 27 ft. .THU NIGHT...N winds 20 to 30 kt. Seas 12 to 21 ft. .FRI...N winds 10 to 20 kt, becoming N to NE 5 to 15 kt. Seas 9 to 16 ft. .FRI NIGHT...E to NE winds 5 to 15 kt, becoming E 5 to 10 kt. Seas 7 to 12 ft. $$ ANZ925-182000- Baltimore Canyon to Hatteras Canyon between 100 NM and 250 NM offshore- 458 AM EDT Mon Aug 18 2025 ...HURRICANE CONDITIONS POSSIBLE WED NIGHT... .TODAY...N to NE winds less than 10 kt, becoming NE. Seas 4 to 7 ft. Isolated showers and tstms. .TONIGHT...E winds 10 to 20 kt. Seas 5 to 9 ft. Scattered showers and tstms. .TUE...E winds 10 to 20 kt. Seas 9 to 11 ft. Scattered showers and tstms. .TUE NIGHT...E winds 10 to 20 kt. Seas 10 to 15 ft. Scattered showers and tstms. .WED...E winds 20 to 30 kt. Seas 12 to 20 ft, building to 17 to 27 ft. .WED NIGHT...E winds 40 to 50 kt, increasing to 75 to 90 kt. Seas 29 to 44 ft. .THU...Hurricane conditions possible. .THU NIGHT...Tropical storm conditions possible. .FRI...N winds 20 to 30 kt, diminishing to 10 to 20 kt. Seas 11 to 19 ft. .FRI NIGHT...NE winds 5 to 15 kt. Seas 9 to 14 ft. $$ ANZ830-182000- Currituck Beach Light to Cape Hatteras to 100 NM offshore- 458 AM EDT Mon Aug 18 2025 ...TROPICAL STORM CONDITIONS POSSIBLE WED NIGHT... .TODAY...N to NE winds less than 10 kt. Seas 3 to 6 ft. .TONIGHT...E winds 5 to 10 kt, becoming 5 to 15 kt. Seas 5 to 9 ft. Scattered showers and tstms. .TUE...E winds 10 to 15 kt. Seas 7 to 12 ft. Scattered showers and tstms. .TUE NIGHT...E winds 10 to 20 kt. Seas 9 to 15 ft. Scattered showers and tstms. .WED...E winds 20 to 30 kt. Seas 14 to 23 ft. .WED NIGHT...N to NE winds 30 to 40 kt. Seas 14 to 29 ft. .THU...Tropical storm conditions possible. .THU NIGHT...N winds 20 to 30 kt. Seas 12 to 21 ft. .FRI...N winds 10 to 20 kt, becoming N to NE 10 to 15 kt. Seas 9 to 15 ft. .FRI NIGHT...NE winds 10 to 15 kt, becoming E 5 to 10 kt. Seas 7 to 12 ft. $$ ANZ833-182000- Cape Hatteras to Cape Fear to 100 NM Offshore.- 458 AM EDT Mon Aug 18 2025 ...TROPICAL STORM CONDITIONS POSSIBLE WED NIGHT... .TODAY...N winds 5 to 10 kt, becoming N to NE 5 to 15 kt, then, becoming NE. Seas 4 to 7 ft. .TONIGHT...E winds 5 to 10 kt, becoming NE 10 to 15 kt. Seas 6 to 10 ft. Isolated showers and tstms. .TUE...E to NE winds 10 to 15 kt. Seas 7 to 12 ft. Scattered showers and tstms. .TUE NIGHT...E winds 15 to 20 kt. Seas 9 to 16 ft. Scattered showers and tstms. .WED...E to NE winds 20 to 30 kt. Seas 15 to 25 ft. .WED NIGHT...NE winds 30 to 40 kt, becoming N. Seas 14 to 29 ft. .THU...Tropical storm conditions possible. .THU NIGHT...N winds 20 to 30 kt, diminishing to 10 to 20 kt. Seas 11 to 19 ft. .FRI...N to NE winds 5 to 15 kt. Seas 8 to 14 ft. .FRI NIGHT...E to NE winds 10 to 15 kt, becoming E 5 to 10 kt. Seas 6 to 11 ft. $$ ANZ930-182000- Hatteras Canyon to Cape Fear between 100 NM and 250 NM offshore- 458 AM EDT Mon Aug 18 2025 ...HURRICANE CONDITIONS POSSIBLE WED... .TODAY...N winds 5 to 10 kt, becoming N to NE 5 to 15 kt. Seas 4 to 8 ft. Isolated showers and tstms. .TONIGHT...E to NE winds 5 to 10 kt, becoming 5 to 15 kt. Seas 6 to 11 ft. Isolated showers and tstms. .TUE...E winds 10 to 15 kt, becoming 10 to 20 kt. Seas 9 to 15 ft. Scattered showers and tstms. .TUE NIGHT...E winds 20 to 30 kt. Seas 15 to 25 ft. Numerous showers and tstms. .WED...E winds 35 to 45 kt, increasing to 50 to 65 kt. Seas 19 to 34 ft, building to 31 to 46 ft. .WED NIGHT...E to SE winds 80 to 95 kt. Seas 34 to 49 ft. .THU...Hurricane conditions possible. .THU NIGHT...N to NW winds 20 to 30 kt. Seas 13 to 23 ft. .FRI...N winds 10 to 20 kt. Seas 10 to 16 ft. .FRI NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas 9 to 13 ft. $$ ANZ835-182000- Cape Fear to 31N to 1000 FM- 458 AM EDT Mon Aug 18 2025 .TODAY...NE winds less than 10 kt, becoming E to NE. Seas 4 to 7 ft. .TONIGHT...E winds 5 to 15 kt, becoming NE. Seas 7 to 12 ft. Isolated showers and tstms. .TUE...NE winds 10 to 20 kt. Seas 8 to 14 ft. Scattered showers and tstms. .TUE NIGHT...NE winds 15 to 25 kt. Seas 11 to 19 ft. Scattered showers and tstms. .WED...N to NE winds 20 to 30 kt. Seas 15 to 25 ft. .WED NIGHT...N winds 20 to 30 kt. Seas 15 to 26 ft. .THU...N winds 20 to 30 kt. Seas 12 to 21 ft. .THU NIGHT...N winds 15 to 25 kt, becoming N to NE 5 to 15 kt. Seas 9 to 16 ft. .FRI...E to NE winds 5 to 15 kt. Seas 7 to 12 ft. .FRI NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas 6 to 10 ft. $$ ANZ935-182000- Cape Fear to 31N east of 1000 FM to 250 NM offshore- 458 AM EDT Mon Aug 18 2025 ...TROPICAL STORM WARNING... ...HURRICANE CONDITIONS POSSIBLE WED... .TODAY...N winds 5 to 10 kt, becoming NE 5 to 15 kt. Seas 5 to 9 ft. Isolated showers and tstms. .TONIGHT...E to NE winds 5 to 15 kt. Seas 7 to 13 ft. Isolated showers and tstms. .TUE...E to NE winds 15 to 25 kt. Seas 11 to 18 ft. Scattered showers and tstms. .TUE NIGHT...E winds 20 to 30 kt, becoming E to NE 35 to 45 kt. Seas 13 to 22 ft, building to 15 to 30 ft. Numerous showers and tstms. .WED...E to NE winds 75 to 95 kt. Seas 32 to 47 ft. .WED NIGHT...E to SE winds 80 to 95 kt, becoming W 60 to 75 kt. Seas 31 to 46 ft, subsiding to 19 to 34 ft. .THU...Tropical storm conditions possible. .THU NIGHT...N to NW winds 15 to 25 kt. Seas 11 to 17 ft. .FRI...N winds 10 to 15 kt, becoming NE. Seas 9 to 14 ft. .FRI NIGHT...E to NE winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas 8 to 11 ft. $$ .Forecaster Connelly. Ocean Prediction Center.