Offshore Forecast
Issued by NWS
Issued by NWS
784 FZNT31 KNHC 082038 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 338 PM EST Mon Dec 8 2025 Marine Weather HF Voice Broadcast for the Tropical N Atlantic from 07N to 19N W of 55W, the N Atlantic from 19N to 31N W of 55W including the Bahamas, and the Caribbean Sea. 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. Synopsis for Caribbean Sea and Tropical N Atlantic from 07N to 19N W of 55W .SYNOPSIS...Moderate to occasionally fresh trade winds and moderate seas are expected over the central and eastern Caribbean through Tue as weak ridging prevails over the central Atlantic. Winds may pulse to strong speeds in the Gulf of Venezuela and offshore of northern Colombia by Tue night, and locally rough seas may develop near and to the west of these winds. An increasing pressure gradient between a weakening cold front approaching the northwestern Caribbean and low pressure in the south-central basin will support fresh to strong trade winds and rough seas in the central Caribbean for mid to late week. Winds may approach near-gale force offshore of Colombia late Wed. Elsewhere, a persistent E swell will continue to lead to rough seas over the Atlantic waters and passages of the Lesser Antilles into early Wed before seas slightly subside. A new mixed N and E swell will renew rough seas over this region late Wed through the rest of the week. NW Caribbean W of 85W .TONIGHT...E winds less than 10 kt. Seas 3 ft. .TUE...Variable winds less than 10 kt. Seas 3 to 4 ft. .TUE NIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft. .WED...Variable winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...NE winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 3 ft. .THU...NE winds less than 10 kt. Seas 3 ft. .THU NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .FRI...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .FRI NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. .SAT...E winds less than 10 kt. Seas 3 to 4 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Caribbean N of 15N between 72W and 85W .TONIGHT...E winds 10 to 15 kt S of 18N, and Variable less than 10 kt elsewhere. S of 18N, seas 3 to 5 ft. Elsewhere, seas 3 ft in the evening, subsiding to 2 ft or less. .TUE...E winds 10 to 15 kt S of 18N, and E less than 10 kt elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. .TUE NIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. .WED...E winds 10 to 20 kt S of 18N, and E less than 10 kt elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU...NE winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. Caribbean from 11N to 15N W of 72W .TONIGHT...E winds 10 to 20 kt within 90 nm of coast of Colombia, and NE 10 to 15 kt elsewhere. Seas 4 to 6 ft. .TUE...E winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...NE winds 15 to 25 kt. Seas 4 to 6 ft. .WED...E winds 15 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. .WED NIGHT...NE winds 20 to 30 kt. Seas 6 to 8 ft. .THU...E winds 15 to 25 kt. Seas 6 to 9 ft. .THU NIGHT...NE winds 15 to 25 kt. Seas 6 to 9 ft. .FRI...E winds 15 to 25 kt. Seas 6 to 9 ft. .FRI NIGHT...E winds 20 to 30 kt. Seas 6 to 9 ft. .SAT...E winds 15 to 25 kt. Seas 7 to 10 ft. .SAT NIGHT...E winds 20 to 30 kt. Seas 6 to 9 ft. SW Caribbean S of 11N .TONIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. .TUE...N winds less than 10 kt. Seas 3 to 4 ft. .TUE NIGHT...N winds less than 10 kt. Seas 3 to 5 ft. .WED...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .THU...NE winds 10 to 20 kt. Seas 6 to 9 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. .FRI...NE winds 10 to 15 kt. Seas 6 to 9 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. .SAT...NE winds less than 10 kt. Seas 6 to 8 ft. .SAT NIGHT...N winds less than 10 kt, shifting to NE after midnight. Seas 6 to 8 ft. Caribbean between 64W and 72W .TONIGHT...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to 15 kt elsewhere. Seas 4 to 6 ft. .TUE...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .TUE NIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 3 to 5 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .WED...E winds 15 to 25 kt. Seas 5 to 7 ft. .WED NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. .THU...E winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .SAT...E winds 10 to 20 kt. Seas 6 to 8 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TONIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .TUE...E winds 10 to 15 kt. Seas 6 to 8 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .WED...E winds 10 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .THU...E winds 10 to 20 kt. Seas 7 to 10 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .FRI...E winds 10 to 20 kt. Seas 7 to 10 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. .SAT...E winds 10 to 20 kt. Seas 8 to 11 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .WED...E winds 10 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .THU...E winds 10 to 20 kt. Seas 6 to 9 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .FRI...E winds 10 to 20 kt. Seas 7 to 10 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. .SAT...E winds 10 to 20 kt. Seas 8 to 11 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A cold front extending from southwest of Bermuda to just northeast of the Bahamas will progress eastward early this week, and fresh to strong SW winds are expected ahead of the front north of 27N through Tue. Rough seas in W swell will develop in this region east of 73W today, and expand eastward into the central Atlantic by tonight. Very rough seas over 12 ft will be possible north of 30N and east of 64W by Tue morning. A second, stronger cold front extending from 31N75W to central Florida will rapidly progress eastward through midweek, and widespread fresh to strong N to NW winds are expected in the wake of the front, generally north of 27N and west of 65W by late tonight, with these winds also expanding eastward toward the central Atlantic through Tue. A new N swell will support rough seas over the northwest tropical Atlantic by late tonight, before merging with the aforementioned rough seas in the central basin on Tue. Winds will diminish from west to east through Tue night, with rough seas slowly subsiding through late week. Looking ahead, fresh to locally strong SW winds and rough seas may develop off the coast of Florida mid to late week as a low pressure system moves off the east coast of the U.S. ATLC waters from 27N to 31N W of 77W .TONIGHT...N winds 15 to 25 kt. Seas 6 to 9 ft. .TUE...N winds 10 to 20 kt. Seas 6 to 9 ft. .TUE NIGHT...NE winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 6 to 8 ft. .WED...W winds less than 10 kt, shifting to SW 10 to 20 kt in the afternoon. Seas 6 to 7 ft. .WED NIGHT...W winds 15 to 25 kt. Seas 6 to 8 ft. .THU...NW winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...Variable winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...N winds less than 10 kt. Seas 3 to 5 ft. .SAT NIGHT...Variable winds less than 10 kt. Seas 3 ft. ATLC waters from 27N to 31N between 65W and 77W .TONIGHT...NW winds 10 to 20 kt W of 70W, and W 15 to 25 kt elsewhere. Seas 6 to 9 ft. .TUE...N winds 10 to 20 kt W of 70W, and NW 15 to 25 kt elsewhere. Seas 7 to 10 ft. .TUE NIGHT...E winds less than 10 kt. Seas 8 to 11 ft. .WED...W of 70W, Variable winds less than 10 kt, becoming S 10 to 15 kt in the afternoon. Elsewhere, S winds 10 to 15 kt. Seas 7 to 10 ft. .WED NIGHT...SW winds 10 to 20 kt. Seas 6 to 8 ft. .THU...W winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...W winds 10 to 20 kt. Seas 6 to 9 ft. .FRI...NW winds 10 to 15 kt, shifting to N in the afternoon. Seas 6 to 9 ft. .FRI NIGHT...NE winds less than 10 kt, shifting to S after midnight. Seas 5 to 7 ft. .SAT...W winds less than 10 kt. Seas 5 to 7 ft. .SAT NIGHT...NE winds less than 10 kt. Seas 5 to 7 ft. Bahamas N of 22N .TONIGHT...NW winds less than 10 kt. Seas 3 ft. .TUE...N winds less than 10 kt. Seas 3 ft. .TUE NIGHT...NE winds less than 10 kt, shifting to S after midnight. Seas 3 to 4 ft. .WED...S winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 5 ft. .WED NIGHT...Variable winds less than 10 kt, becoming W less than 10 kt after midnight. Seas 3 to 5 ft. .THU...NW winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .FRI...NE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TONIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...W of 70W, N winds 10 to 15 kt. Elsewhere, SW winds 10 to 15 kt, shifting to W in the afternoon. Seas 5 to 7 ft. .TUE NIGHT...W of 70W, E winds 10 to 15 kt, shifting to SE after midnight. Elsewhere, SE winds less than 10 kt. Seas 5 to 7 ft. .WED...S winds less than 10 kt. Seas 6 to 9 ft. .WED NIGHT...S winds 10 to 15 kt. Seas 6 to 8 ft. .THU...SW winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...NW winds less than 10 kt. Seas 5 to 7 ft. .FRI...NE winds less than 10 kt. Seas 5 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. ATLC waters S of 22N W of 65W .TONIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .TUE...SE winds less than 10 kt. Seas 3 to 4 ft. .TUE NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .WED...SE winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .THU...SE winds 10 to 15 kt, shifting to E in the afternoon. Seas 5 to 7 ft. .THU NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 6 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. ATLC waters from 19N to 22N between 55W and 65W .TONIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...SE winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .WED...E winds 10 to 20 kt. Seas 6 to 8 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .THU...E winds 10 to 20 kt. Seas 8 to 10 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. .FRI...E winds 10 to 20 kt. Seas 7 to 10 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. .SAT...E winds 15 to 20 kt. Seas 8 to 10 ft. .SAT NIGHT...E winds 15 to 20 kt. Seas 9 to 10 ft.