378 FZNT31 KNHC 250311 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1111 PM EDT Tue Aug 24 2021 Marine Weather HF Voice Broadcast for the Tropical N Atlantic from 07N to 22N between 55W and 64W, the SW N Atlantic S of 31N W of 65W including 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 between 55W and 64W .SYNOPSIS...Fresh to locally strong trade winds will dominate most of east and central Caribbean through midweek with seas in the 7 to 9 ft range. Fresh to strong winds are also expected in the Windward passage and in the lee of Cuba through tonight. A broad area of low pressure is expected to form over the southwestern Caribbean Sea in a couple of days from a tropical wave currently located along 69W. Environmental conditions are forecast to be conducive for development of the low if it remains over water, and a tropical depression could form late this week or this weekend while the system moves northwestward over the northwestern Caribbean Sea, across the Yucatan Peninsula of Mexico, and into the southwestern Gulf of Mexico by Sunday. Regardless of development, winds and waves will likely increase between 77W and the Yucatan Peninsula Fri and Sat. NW Caribbean W of 85W .OVERNIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .WED...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...NE 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 less than 10 kt, shifting to E after midnight. Seas 3 to 5 ft. .FRI...NE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft. .SAT...SE winds 20 to 30 kt. Seas 6 to 9 ft. .SAT NIGHT...SE winds 20 to 30 kt. Seas 6 to 9 ft. .SUN...SE winds 15 to 25 kt. Seas 6 to 8 ft. .SUN NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. Caribbean N of 15N between 72W and 85W .OVERNIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .WED...E winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft S of 18N, and 3 to 5 ft elsewhere. .THU...E winds 10 to 20 kt. Seas 4 to 6 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...SE winds 10 to 20 kt. Seas 6 to 9 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .SUN...E winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. Caribbean from 11N to 15N W of 72W .OVERNIGHT...NE 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 5 to 7 ft. .THU...Within 90 nm of coast of Colombia, S winds 10 to 15 kt, shifting to SW in the afternoon. Elsewhere, SE winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...SE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 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 5 to 7 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. SW Caribbean S of 11N .OVERNIGHT...NW winds 10 to 15 kt. Seas 5 to 7 ft. .WED...NE winds 10 to 15 kt, shifting to SE in the afternoon. Seas 5 to 7 ft. .WED NIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft. .THU...SW winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...SW winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .FRI NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. .SAT...Variable winds less than 10 kt, becoming N less than 10 kt in the afternoon. Seas 3 to 5 ft. .SAT NIGHT...NW winds less than 10 kt. Seas 3 to 5 ft. .SUN...W winds less than 10 kt. Seas 3 to 5 ft. .SUN NIGHT...W winds less than 10 kt. Seas 4 to 6 ft. Caribbean between 64W and 72W .OVERNIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .WED...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela, and 6 to 8 ft elsewhere. .WED NIGHT...Gulf of Venezuela, NE winds less than 10 kt, becoming E 10 to 20 kt after midnight. Elsewhere, E winds 10 to 20 kt. Seas 3 to 4 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 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 4 to 6 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. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .OVERNIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .WED...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 6 ft. .SUN NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .OVERNIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .WED...E winds 10 to 15 kt. Seas 4 to 5 ft. .WED NIGHT...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 20 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 5 to 7 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 4 to 6 ft. .SUN...E winds 10 to 15 kt. Seas 4 to 6 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 surface trough just east of the Bahamas is producing fresh to strong NE winds across the central Bahamas reaching the coast of Cuba. This feature will move westward bringing fresh to locally strong NE winds to the the NW Bahamas and SE Florida including the Straits of Florida on Wed before the trough weakens by late Thu. Otherwise, a 1022 mb high pressure located near Bermuda will dominate the remainder of the forecast region through at least Wed. Fresh to locally strong winds are expected to pulse N of Hispaniola during the evening hours through Sat night. ATLC waters from 27N to 31N W of 77W .OVERNIGHT...SE winds 10 kt. Seas 3 to 4 ft. .WED...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 15 to 25 kt. Seas 4 to 6 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 15 kt. Seas 4 to 6 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 4 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 4 ft. .SUN...E winds 10 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. ATLC waters from 27N to 31N between 65W and 77W .OVERNIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .WED...E winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .THU...E winds 10 to 20 kt. Seas 5 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 4 to 5 ft. .SAT...NE winds less than 10 kt. Seas 3 to 4 ft. .SAT NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .SUN...NE winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. Bahamas N of 22N .OVERNIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft. .WED...E winds 15 to 25 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 ft. .FRI...E winds 10 to 15 kt. Seas 3 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 ft. .SUN...E winds 10 to 15 kt. Seas 3 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 2 ft or less. ATLC waters from 22N to 27N between 65W and the Bahamas .OVERNIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft W of 70W, and 5 to 6 ft elsewhere. .WED...E winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .THU...E winds 10 to 15 kt. Seas 4 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, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .SAT NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. .SUN...N winds 10 kt. Seas 3 to 4 ft. .SUN NIGHT...N winds 10 kt. Seas 3 to 5 ft. ATLC waters S of 22N W of 65W .OVERNIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED...E winds 10 to 20 kt. Seas 4 to 5 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 4 to 5 ft. .THU...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 5 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...NE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. ATLC waters from 19N to 22N between 55W and 65W .OVERNIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .WED...E winds less than 10 kt. Seas 4 to 5 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 4 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 5 to 6 ft. .SAT...NE winds 10 to 15 kt. Seas 4 to 5 ft. .SAT NIGHT...NE winds less than 10 kt. Seas 4 to 5 ft. .SUN...NW winds less than 10 kt. Seas 4 to 5 ft. .SUN NIGHT...W winds less than 10 kt. Seas 4 ft.