Offshore Forecast
Issued by NWS
Issued by NWS
921 FZNT31 KNHC 021401 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1001 AM EDT Wed Jul 2 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...The pressure gradient between the Bermuda High and lower pressure across NW Colombia and the SW Caribbean will support fresh to strong trades and rough seas across most of the central basin through Fri. Winds and seas will diminish over the weekend. NW Caribbean W of 85W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 ft. .FRI...E winds less than 10 kt. Seas 3 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 ft. .SAT...E winds less than 10 kt. Seas 3 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Caribbean N of 15N between 72W and 85W .THIS AFTERNOON...S of 18N, E winds 10 to 20 kt. Elsewhere, E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 6 to 8 ft S of 18N, and 3 to 5 ft elsewhere. .TONIGHT...E winds 10 to 20 kt S of 18N, and E less than 10 kt elsewhere. Seas 5 to 7 ft S of 18N, and 3 to 5 ft elsewhere. .THU...E winds 10 to 20 kt S of 18N, and E less than 10 kt elsewhere. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 20 kt S of 18N, and SE less than 10 kt elsewhere. Seas 4 to 6 ft S of 18N, and 3 ft elsewhere. .FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. Caribbean from 11N to 15N W of 72W .THIS AFTERNOON...E winds 15 to 25 kt. Seas 8 to 11 ft. .TONIGHT...E winds 15 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 7 to 10 ft. .THU...E winds 10 to 20 kt. Seas 6 to 8 ft. .THU NIGHT...E winds 15 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 6 to 8 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 8 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. .SUN...E winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. SW Caribbean S of 11N .THIS AFTERNOON...E winds 10 to 15 kt. Seas 6 to 9 ft. .TONIGHT...NE winds less than 10 kt. Seas 6 to 9 ft. .THU...E winds less than 10 kt. Seas 5 to 7 ft. .THU NIGHT...Variable winds less than 10 kt, becoming N less than 10 kt after midnight. Seas 4 to 6 ft. .FRI...E winds less than 10 kt, shifting to SW in the afternoon. Seas 3 to 5 ft. .FRI NIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft. .SAT...Variable winds less than 10 kt. Seas 3 to 5 ft. .SAT NIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft. .SUN...Variable winds less than 10 kt. Seas 3 to 4 ft. .SUN NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. Caribbean between 64W and 72W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .TONIGHT...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. .THU...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .THU NIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. .FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 15 kt. 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 3 to 5 ft. .SAT...E winds 10 to 15 kt. Seas 4 to 5 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 15 kt. 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 3 to 5 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...E winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A weak cold front will move off the SE U.S coast Thu night, then stall over the far NW basin Fri into the weekend. An area of low pressure could develop near the southeast U.S. Atlantic or Gulf coasts by this weekend along the weakening frontal boundary. Environmental conditions appear only marginally conducive for some slow development, but a tropical or subtropical depression could form in this region over the weekend or early next week while the system moves little. Regardless of development, heavy rainfall is possible across portions of the southeast U.S., particularly across the west- central Florida coast. There is a medium chance of tropical formation through the next 7 days. ATLC waters from 27N to 31N W of 77W .THIS AFTERNOON...S winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...S winds 10 to 20 kt. Seas 3 to 5 ft. .THU...SW winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...SW winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .SAT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...S winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. ATLC waters from 27N to 31N between 65W and 77W .THIS AFTERNOON...S winds 10 to 15 kt W of 70W, and SE less than 10 kt elsewhere. Seas 3 to 5 ft. .TONIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. .THU...S winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...S winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...S winds 10 kt. Seas 3 to 5 ft. .SAT...S winds 10 kt. Seas 3 to 4 ft. .SAT NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .SUN...S winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...SE winds 10 kt. Seas 3 to 5 ft. Bahamas N of 22N .THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 3 ft. .THU...SE winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 ft. .FRI...SE winds 10 to 15 kt, shifting to S in the afternoon. Seas 3 ft. .FRI NIGHT...S winds less than 10 kt. Seas 3 ft. .SAT...S winds less than 10 kt. Seas 3 ft. .SAT NIGHT...SE winds less than 10 kt. Seas 2 ft or less. .SUN...SE winds less than 10 kt. Seas 2 ft or less. .SUN NIGHT...SE winds less than 10 kt. Seas 2 ft or less. ATLC waters from 22N to 27N between 65W and the Bahamas .THIS AFTERNOON...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .THU...SE winds 10 to 15 kt. Seas 4 to 5 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. .FRI...SE winds 10 to 15 kt. Seas 4 to 5 ft. .FRI NIGHT...SE winds 10 kt. Seas 4 ft. .SAT...SE winds 10 kt. Seas 3 to 4 ft. .SAT NIGHT...SE winds 10 kt. Seas 3 to 4 ft. .SUN...SE winds 10 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 kt. Seas 3 to 4 ft. ATLC waters S of 22N W of 65W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .THU...SE winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...SE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. ATLC waters from 19N to 22N between 55W and 65W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 5 to 6 ft. .TONIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. .THU...E winds 10 to 15 kt. Seas 5 to 6 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .SAT...E winds 10 to 15 kt. Seas 4 to 5 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .SUN...E winds 10 to 15 kt. Seas 4 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.