


Offshore Forecast
Issued by NWS
Issued by NWS
797 FZNT23 KNHC 181504 OFFNT3 Offshore Waters Forecast for the Caribbean Sea and Tropical N Atlantic NWS National Hurricane Center Miami, FL 1104 AM EDT Mon Aug 18 2025 Offshore Waters Forecast for Caribbean Sea, and the Tropical N Atlantic from 07N to 19N W of 55W. 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. AMZ001-190315- Synopsis for Caribbean Sea, and Tropical N Atlantic from 07N to 19N W of 55W 1104 AM EDT Mon Aug 18 2025 .SYNOPSIS...Major Hurricane Erin is centered near 23.1N 70.8W at 18/1500 UTC or 100 nm N of Grand Turk Island, moving WNW at 9 kt. Estimated minimum central pressure is 935 mb. Maximum sustained wind speed is 120 kt with gusts to 145 kt. Erin will move to 24.2N 71.6W this evening, 25.7N 72.5W Tue morning, 27.4N 73.2W Tue evening, 29.5N 73.5W Wed morning, 31.7N 73.1W Wed evening, and 33.9N 71.6W Thu morning. Outer bands of Erin will produce localized areas of heavy rainfall across portions of Hispaniola today. Additional rainfall of 2 to 4 inches, with locally higher amounts to 6 inches, are forecast. Fresh S to SW winds over the north-central Caribbean and through the Atlantic passages will continue through tonight as Erin lifts northwestward to northward, with winds diminishing through Tue. Rough seas are expected in the Mona Passage today before seas subside tonight. Moderate to locally fresh trade winds and moderate are then expected late Tue through late this week over the central and eastern basin as high pressure builds in the wake of Erin. $$ AMZ040-190315- Caribbean N of 18N W of 85W including Yucatan Basin- 1104 AM EDT Mon Aug 18 2025 .TODAY...N to NE winds 10 kt in the afternoon. Seas 3 ft or less. Scattered showers and isolated tstms. .TONIGHT...NE to E winds 10 kt. Seas 3 ft or less. .TUE...Variable winds less than 5 kt. Seas 3 ft or less. .TUE NIGHT...NE winds 10 kt, shifting to E to SE late. Seas 3 ft or less. .WED...Variable winds less than 5 kt. Seas 3 ft or less. .WED NIGHT...E to SE winds 10 kt. Seas 3 ft or less. .THU...SE winds 10 kt. Seas 3 ft or less. .THU NIGHT...SE winds 10 to 15 kt. Seas 3 ft or less. .FRI...E to SE winds 10 to 15 kt. Seas 3 ft or less. $$ AMZ041-190315- Caribbean N of 20N E of 85W- 1104 AM EDT Mon Aug 18 2025 .TODAY...NE winds 10 kt in the afternoon. Seas 3 ft or less. .TONIGHT...N to NE winds 10 to 15 kt. Seas 3 ft or less. .TUE...NE winds 10 kt, shifting to NW in the afternoon. Seas 3 ft or less. .TUE NIGHT...SW to W winds 10 kt. Seas 3 ft or less. .WED...SW winds 10 kt. Seas 3 ft or less. .WED NIGHT...S winds 10 kt. Seas 3 ft or less. .THU...Variable winds less than 5 kt, becoming SE to S 10 kt in the afternoon. Seas 3 ft or less. .THU NIGHT...E to SE winds 10 kt. Seas 3 ft or less. .FRI...E winds 10 kt. Seas 3 ft or less. $$ AMZ042-190315- Caribbean from 18N to 20N between 80W and 85W including Cayman Basin- 1104 AM EDT Mon Aug 18 2025 .TODAY...Variable winds less than 5 kt in the afternoon. Seas 3 ft or less. .TONIGHT...N winds 10 kt in the evening, becoming variable less than 5 kt. Seas 3 ft or less. .TUE...Variable winds less than 5 kt. Seas 3 ft or less. .TUE NIGHT...Variable winds less than 5 kt. Seas 3 ft or less. .WED...Variable winds less than 5 kt. Seas 3 ft or less. .WED NIGHT...Variable winds less than 5 kt, becoming SE 10 kt late. Seas 3 ft or less. .THU...E to SE winds 10 kt. Seas 3 ft or less. .THU NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less. .FRI...E winds 10 to 15 kt. Seas 3 ft or less. $$ AMZ043-190315- Caribbean from 18N to 20N between 76W and 80W- 1104 AM EDT Mon Aug 18 2025 .TODAY...NW winds 10 kt in the afternoon. Seas 3 ft or less. .TONIGHT...NW winds 10 to 15 kt. Seas 3 ft or less. .TUE...W winds 10 kt. Seas 3 ft or less. .TUE NIGHT...SW winds 10 kt. Seas 3 ft or less. .WED...S winds 10 kt. Seas 3 ft or less. .WED NIGHT...SE winds 10 to 15 kt. Seas 3 ft or less. .THU...E winds 10 to 15 kt. Seas 3 ft or less. .THU NIGHT...E winds 10 to 15 kt. Seas 3 ft or less. .FRI...NE to E winds 10 kt. Seas 3 ft or less. $$ AMZ044-190315- Caribbean approaches to the Windward Passage- 1104 AM EDT Mon Aug 18 2025 .TODAY...SW to W winds 10 to 20 kt in the afternoon. Seas 3 to 5 ft. Scattered showers and isolated tstms. .TONIGHT...SW winds 15 to 20 kt. Seas 2 to 5 ft. .TUE...S to SW winds 15 to 20 kt. Seas 2 to 4 ft. .TUE NIGHT...S to SW winds 10 to 15 kt. Seas 3 ft or less. .WED...S winds 10 to 15 kt. Seas 3 ft or less. .WED NIGHT...SE to S winds 10 to 15 kt, shifting to E late. Seas 3 ft or less. .THU...NE winds 10 to 15 kt. Seas 2 to 4 ft. .THU NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. .FRI...NE winds 15 to 20 kt. Seas 2 to 4 ft. $$ AMZ045-190315- Gulf of Honduras- 1104 AM EDT Mon Aug 18 2025 .TODAY...Variable winds less than 5 kt in the afternoon. Seas 3 ft or less. .TONIGHT...NE winds 10 kt, shifting to E to SE late. Seas 3 ft or less. .TUE...Variable winds less than 5 kt. Seas 3 ft or less. .TUE NIGHT...NE winds 10 kt, shifting to E to SE late. Seas 3 ft or less. .WED...Variable winds less than 5 kt S of 17N W of 87W, and E to SE 10 kt elsewhere. Seas 3 ft or less. .WED NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less. .THU...E winds 10 to 15 kt. Seas 3 ft or less. .THU NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less. .FRI...E to SE winds 10 to 15 kt. Seas 3 ft or less. $$ AMZ046-190315- Caribbean from 15N to 18N between 80W and 85W- 1104 AM EDT Mon Aug 18 2025 .TODAY...Variable winds less than 5 kt in the afternoon. Seas 3 ft or less. .TONIGHT...N to NE winds 10 kt in the evening, becoming variable less than 5 kt. Seas 3 ft or less. .TUE...Variable winds less than 5 kt. Seas 3 ft or less. .TUE NIGHT...Variable winds less than 5 kt, becoming SE 10 kt late. Seas 3 ft or less. .WED...E to SE winds 10 kt. Seas 3 ft or less. .WED NIGHT...E winds 10 to 15 kt. Seas 3 ft or less. .THU...E winds 10 to 15 kt. Seas 3 ft or less. .THU NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .FRI...E winds 10 to 15 kt. Seas 2 to 4 ft. $$ AMZ047-190315- Caribbean from 15N to 18N between 76W and 80W- 1104 AM EDT Mon Aug 18 2025 .TODAY...W winds 10 kt in the afternoon. Seas 3 ft or less. .TONIGHT...NW winds 10 kt, shifting to S to SW late. Seas 3 ft or less. .TUE...S winds 10 kt. Seas 3 ft or less. .TUE NIGHT...E to SE winds 10 kt. Seas 3 ft or less. .WED...E winds 10 to 15 kt. Seas 3 ft or less. .WED NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .THU...E winds 15 to 20 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 15 to 20 kt. Seas 4 to 6 ft. .FRI...NE to E winds 10 to 15 kt. Seas 4 to 6 ft. $$ AMZ048-190315- Caribbean from 15N to 18N between 72W and 76W- 1104 AM EDT Mon Aug 18 2025 .TODAY...SW to W winds 10 kt in the afternoon. Seas 3 ft or less. Scattered showers and isolated tstms. .TONIGHT...SW to W winds 10 kt, shifting to S late. Seas 3 ft or less. .TUE...SE to S winds 10 kt. Seas 3 ft or less. .TUE NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft or less. .WED...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. .WED NIGHT...E winds 15 to 20 kt. Seas 3 to 5 ft. .THU...E winds 15 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 15 to 20 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. $$ AMZ049-190315- Caribbean N of 15N between 68W and 72W- 1104 AM EDT Mon Aug 18 2025 .TODAY...S to SW winds 15 to 20 kt in the afternoon. Seas 4 to 6 ft. Scattered showers and isolated tstms. .TONIGHT...S winds 10 to 20 kt. Seas 3 to 5 ft. Scattered showers and isolated tstms. .TUE...SE winds 10 to 15 kt. Seas 2 to 4 ft. Scattered showers and isolated tstms. .TUE NIGHT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. .WED...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 15 to 20 kt. Seas 3 to 5 ft. .THU...E winds 15 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. .FRI...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. $$ AMZ050-190315- Caribbean N of 15N between 64W and 68W- 1104 AM EDT Mon Aug 18 2025 .TODAY...SE to S winds 15 to 20 kt in the afternoon. Seas 3 to 5 ft. Scattered showers and isolated tstms. .TONIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .WED...E winds 15 to 20 kt. Seas 2 to 4 ft. .WED NIGHT...NE to E winds 15 to 20 kt. Seas 3 to 5 ft. .THU...NE to E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...NE winds 10 to 15 kt. Seas 3 to 5 ft. $$ AMZ051-190315- Offshore Waters Leeward Islands- 1104 AM EDT Mon Aug 18 2025 .TODAY...SE winds 10 to 15 kt in the afternoon. Seas 3 to 5 ft. .TONIGHT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. Scattered showers and isolated tstms. .TUE...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED...E winds 15 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. .THU...NE to E winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 15 to 20 kt. Seas 5 to 7 ft. .FRI...E winds 15 to 20 kt, shifting to SE to S in the afternoon. Seas 5 to 7 ft. $$ AMZ052-190315- Tropical N Atlantic from 15N to 19N between 55W and 60W- 1104 AM EDT Mon Aug 18 2025 .TODAY...E to SE winds 10 to 15 kt in the afternoon. Seas 3 to 5 ft. Scattered showers and isolated tstms. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Scattered showers and isolated tstms. .TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...NE to E winds 15 to 20 kt. Seas 3 to 5 ft. .WED...NE to E winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...NE to E winds 15 to 20 kt. Seas 5 to 7 ft. .THU...NE to E winds 15 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...SE winds 15 to 20 kt. Seas 6 to 8 ft. .FRI...SE to S winds 15 to 20 kt. Seas 6 to 8 ft. $$ AMZ053-190315- W Central Caribbean from 11N to 15N W of 80W- 1104 AM EDT Mon Aug 18 2025 .TODAY...Variable winds less than 5 kt in the afternoon. Seas 3 ft or less. .TONIGHT...NE to E winds 10 kt. Seas 3 ft or less. .TUE...E to SE winds 10 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .TUE NIGHT...NE to E winds 10 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .WED...NE to E winds 10 kt. Seas 3 ft or less. .WED NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less. .THU...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. .THU NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 15 kt. Seas 2 to 4 ft within 60 nm of coast of Nicaragua, and 4 to 6 ft elsewhere. $$ AMZ054-190315- Caribbean from 11N to 15N between 76W and 80W including Colombia Basin- 1104 AM EDT Mon Aug 18 2025 .TODAY...S to SW winds 10 kt in the afternoon. Seas 3 ft or less. .TONIGHT...Variable winds less than 5 kt. Seas 3 ft or less. .TUE...E to SE winds 10 kt. Seas 3 ft or less. .TUE NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less. .WED...NE to E winds 10 to 15 kt. Seas 3 ft or less. .WED NIGHT...NE to E winds 15 to 20 kt. Seas 3 to 5 ft. .THU...E winds 15 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 15 to 20 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. $$ AMZ055-190315- Caribbean from 11N to 15N between 72W and 76W- 1104 AM EDT Mon Aug 18 2025 .TODAY...Within 90 nm of coast of Colombia, variable winds less than 5 kt in the afternoon. Elsewhere, SW winds 10 kt in the afternoon. Seas 3 ft or less. Scattered showers and isolated tstms. .TONIGHT...Variable winds less than 5 kt, becoming E 10 kt late. Seas 3 ft or less. Scattered showers and isolated tstms. .TUE...E winds 10 to 15 kt. Seas 3 ft or less. .TUE NIGHT...NE to E winds 15 to 20 kt. Seas 2 to 4 ft. .WED...Within 90 nm of coast of Colombia, NE to E winds 10 to 15 kt. Seas 3 ft or less. Elsewhere, E winds 15 to 20 kt. Seas 3 to 5 ft. .WED NIGHT...NE to E winds 15 to 20 kt. Seas 3 to 5 ft within 90 nm of coast of Colombia, and 5 to 7 ft elsewhere. .THU...Within 90 nm of coast of Colombia, E to SE winds 10 kt in the morning, becoming variable less than 5 kt. Elsewhere, E winds 15 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...Within 90 nm of coast of Colombia, variable winds less than 5 kt, becoming NE to E 10 to 15 kt late. Elsewhere, NE to E winds 15 to 20 kt. Seas 4 to 6 ft. .FRI...Within 90 nm of coast of Colombia, SE winds 10 kt in the morning, becoming variable less than 5 kt. Elsewhere, E winds 15 to 20 kt. Seas 4 to 6 ft. $$ AMZ056-190315- Caribbean S of 15N between 68W and 72W- 1104 AM EDT Mon Aug 18 2025 .TODAY...Gulf of Venezuela, variable winds less than 5 kt in the afternoon. Elsewhere, SE to S winds 10 to 15 kt in the afternoon. Seas 3 ft or less. .TONIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. Scattered showers and isolated tstms. .TUE...Variable winds less than 5 kt Gulf of Venezuela, and E to SE 10 to 15 kt elsewhere. Seas 2 to 4 ft. .TUE NIGHT...NE to E winds 10 to 15 kt Gulf of Venezuela, and E 15 to 20 kt elsewhere. Seas 3 to 5 ft. .WED...NE to E winds 10 to 15 kt Gulf of Venezuela, and E 15 to 20 kt elsewhere. Seas 3 to 5 ft. .WED NIGHT...E winds 15 to 20 kt. Seas 4 to 6 ft. .THU...NE to E winds 10 to 15 kt Gulf of Venezuela, and E 15 to 20 kt elsewhere. Seas 4 to 6 ft. .THU NIGHT...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. $$ AMZ057-190315- Caribbean S of 15N between 64W and 68W including Venezuela Basin- 1104 AM EDT Mon Aug 18 2025 .TODAY...SE winds 10 to 15 kt in the afternoon. Seas 2 to 4 ft. .TONIGHT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. .TUE...E to SE winds 10 to 15 kt. Seas 2 to 4 ft. .TUE NIGHT...E winds 15 to 20 kt. Seas 2 to 4 ft. .WED...E winds 15 to 20 kt. Seas 2 to 4 ft. .WED NIGHT...E winds 15 to 20 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...E winds 10 kt. Seas 2 to 4 ft. $$ AMZ058-190315- Offshore Waters Windward Islands including Trinidad and Tobago- 1104 AM EDT Mon Aug 18 2025 .TODAY...E to SE winds 10 to 15 kt in the afternoon. Seas 2 to 4 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 ft or less. .TUE...E winds 10 to 15 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 ft or less. .WED...NE to E winds 15 to 20 kt. Seas 2 to 4 ft. .WED NIGHT...NE to E winds 15 to 20 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .FRI...SE to S winds 10 to 15 kt. Seas 2 to 4 ft. $$ AMZ059-190315- Tropical N Atlantic from 11N and 15N between 55W and 60W- 1104 AM EDT Mon Aug 18 2025 .TODAY...E to SE winds 10 to 15 kt in the afternoon. Seas 2 to 4 ft. Scattered showers and isolated tstms. .TONIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. Scattered showers and isolated tstms. .TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...NE to E winds 15 to 20 kt. Seas 3 to 5 ft. .WED...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...NE to E winds 15 to 20 kt. Seas 4 to 6 ft. .THU...E winds 10 to 15 kt, shifting to SE to S in the afternoon. Seas 4 to 6 ft. .THU NIGHT...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. $$ AMZ062-190315- Tropical N Atlantic from 7N and 11N between 55W and 60W- 1104 AM EDT Mon Aug 18 2025 .TODAY...E winds 10 to 15 kt in the afternoon. Seas 2 to 4 ft. Scattered showers and isolated tstms. .TONIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .TUE...NE to E winds 10 to 15 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .TUE NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft. Scattered showers and isolated tstms. .WED...NE to E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .THU...SE winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...SE winds 15 to 20 kt. Seas 3 to 5 ft. .FRI...SE winds 15 to 20 kt. Seas 5 to 7 ft. $$ AMZ060-190315- SW Caribbean S of 11N W of 80W- 1104 AM EDT Mon Aug 18 2025 .TODAY...Variable winds less than 5 kt in the afternoon. Seas 3 ft or less. .TONIGHT...Variable winds less than 5 kt, becoming E 10 kt late. Seas 3 ft or less. .TUE...Variable winds less than 5 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .TUE NIGHT...Variable winds less than 5 kt, becoming NE to E 10 kt late. Seas 3 ft or less. Scattered showers and isolated tstms. .WED...E winds 10 kt. Seas 3 ft or less. .WED NIGHT...N to NE winds 10 kt. Seas 3 ft or less. .THU...NE winds 10 kt, shifting to NW to N in the afternoon. Seas 3 ft or less. .THU NIGHT...Variable winds less than 5 kt, becoming NW 10 kt late. Seas 2 to 4 ft. .FRI...NW to N winds 10 kt. Seas 2 to 4 ft. $$ AMZ061-190315- SW Caribbean S of 11N E of 80W including the approaches to the Panama Canal- 1104 AM EDT Mon Aug 18 2025 .TODAY...S to SW winds 10 kt in the afternoon. Seas 3 ft or less. Scattered showers and isolated tstms. .TONIGHT...Variable winds less than 5 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .TUE...E winds 10 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .TUE NIGHT...N to NE winds 10 to 15 kt. Seas 3 ft or less. Scattered showers and isolated tstms. .WED...N to NE winds 10 to 15 kt. Seas 3 ft or less. .WED NIGHT...S of 10N, NW winds 10 kt in the evening, becoming variable less than 5 kt. Elsewhere, NE winds 10 to 15 kt. Seas 3 ft or less, building to 2 to 4 ft late. .THU...S winds 10 kt, shifting to W in the afternoon. Seas 3 to 5 ft. .THU NIGHT...W to NW winds 10 kt, shifting to S late. Seas 3 to 5 ft. .FRI...S winds 10 kt, shifting to SW to W in the afternoon. Seas 2 to 4 ft. $$ Forecaster ADAMS