000 FZNT31 KNHC 190901 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 501 AM EDT Mon Oct 19 2020 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...A tropical wave moving across the W Caribbean will reach the Yucatan Peninsula late today enhancing winds and convection over the region. A broad area of low pressure is likely to form in a couple of days over the southwestern Caribbean. Some gradual development of this system is possible late this week while it moves slowly northwestward or north- northwestward over the western Caribbean. NW Caribbean W of 85W .TODAY...N winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .TONIGHT...N winds less than 10 kt. Seas 4 to 6 ft. .TUE...W winds less than 10 kt. Seas 4 to 6 ft. .TUE NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. .WED...SW winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft in the evening, subsiding to 2 ft or less. .THU...SE winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...E winds less than 10 kt. Seas 2 ft or less. .FRI...Variable winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT...NE winds less than 10 kt. Seas 2 ft or less. Caribbean N of 15N between 72W and 85W .TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...SE winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...S of 18N, E winds 10 to 15 kt. Elsewhere, E winds less than 10 kt, shifting to SE after midnight. Seas 3 to 4 ft. .WED...SE winds less than 10 kt. Seas 3 to 4 ft. .WED NIGHT...E winds less than 10 kt. Seas 3 ft. .THU...E winds 10 to 15 kt. Seas 3 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Caribbean from 11N to 15N W of 72W .TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...SW winds 10 to 15 kt within 90 nm of coast of Colombia, and SE less than 10 kt elsewhere. Seas 3 to 5 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 less than 10 kt, shifting to E after midnight. Seas 3 to 4 ft. .THU...E winds 10 to 15 kt, shifting to SE in the afternoon. Seas 3 to 4 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. SW Caribbean S of 11N .TODAY...W winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. .TONIGHT...SW winds 10 to 20 kt. Seas 3 to 4 ft. .TUE...SW winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...SW winds 10 to 15 kt, shifting to S after midnight. Seas 3 to 4 ft. .WED...S winds 10 to 15 kt. Seas 3 ft. .WED NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. .THU...Variable winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. .FRI...Variable winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT...NW winds less than 10 kt. Seas 2 ft or less. Caribbean between 64W and 72W .TODAY...Gulf of Venezuela, E winds 10 to 20 kt, becoming S less than 10 kt in the afternoon,Seas 3 ft in the morning, subsiding to 2 ft or less. Elsewhere, E winds 10 to 15 kt,Seas 3 to 5 ft. .TONIGHT...Gulf of Venezuela, N winds less than 10 kt, shifting to E after midnight. Elsewhere, E winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .TUE...Gulf of Venezuela, Variable winds less than 10 kt, becoming NW less than 10 kt in the afternoon. Elsewhere, E winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 4 ft elsewhere. .TUE NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 ft or less Gulf of Venezuela, and 3 to 4 ft elsewhere. .WED...E winds 10 to 15 kt. Seas 3 to 5 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 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 5 to 7 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...SW winds less than 10 kt. Seas 3 to 5 ft. .TONIGHT...SW winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 5 ft. .TUE...SW winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...S winds less than 10 kt. Seas 5 to 7 ft. .WED...S winds less than 10 kt. Seas 5 to 7 ft. .WED NIGHT...SE winds less than 10 kt. Seas 5 to 7 ft. .THU...SE winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...SE winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .TUE...SE winds less than 10 kt. Seas 3 to 4 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED...E winds 10 to 15 kt. Seas 4 to 6 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 20 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 9 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A non-tropical low pressure system located about 650 miles southeast of Bermuda is poorly organized. Although environmental conditions are expected to be only marginally conducive for development during the next day or so, a subtropical or tropical depression could still develop later today or on Tuesday. However, upper-level winds are forecast to become more favorable for tropical cyclone formation by late Tuesday and Wednesday while the low meanders well to the southeast of Bermuda. The pressure gradient between high pressure to the north and the low will continue to increase winds and seas across the NE waters. Swell generated by this system will continue propagating across the waters E of the Bahamas, reaching the Atlantic/Caribbean passages on Tue. ATLC waters from 27N to 31N W of 77W .TODAY...E winds 15 to 20 kt. Seas 6 to 9 ft. .TONIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 7 to 9 ft. .WED...E winds 15 to 20 kt. Seas 8 to 9 ft. .WED NIGHT...E winds 15 to 20 kt. Seas 8 to 9 ft. .THU...E winds 10 to 15 kt. Seas 8 to 9 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. .FRI...NE winds 10 to 15 kt. Seas 9 to 11 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 8 to 10 ft. ATLC waters from 27N to 31N between 65W and 77W ...GALE CONDITIONS POSSIBLE... .TODAY...E winds 10 to 20 kt W of 70W, and NE 15 to 25 kt elsewhere. Seas 6 to 9 ft W of 70W, and 8 to 12 ft elsewhere. .TONIGHT...E winds 15 to 20 kt. Seas 7 to 10 ft W of 70W, and 10 to 12 ft elsewhere. .TUE...E winds 10 to 20 kt. Seas 8 to 12 ft. .TUE NIGHT...E winds 15 to 20 kt. Seas 9 to 10 ft W of 70W, and 10 to 13 ft elsewhere. .WED...NE winds 10 to 20 kt. Seas 10 to 15 ft. .WED NIGHT...NE winds 15 to 25 kt. Seas 12 to 17 ft. .THU...NE winds 15 to 25 kt. Seas 11 to 16 ft. .THU NIGHT...N winds 10 to 20 kt. Seas 11 to 16 ft. .FRI...N winds 10 to 20 kt. Seas 11 to 16 ft. .FRI NIGHT...N winds 10 to 15 kt. Seas 10 to 15 ft. Bahamas N of 22N .TODAY...E winds 10 to 20 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...E winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...E 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 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 5 to 7 ft. .FRI...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...NE winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...NE winds 10 to 20 kt W of 70W, and NE 15 to 25 kt elsewhere. Seas 8 to 11 ft. .TUE...E winds 10 to 20 kt. Seas 8 to 12 ft. .TUE NIGHT...NE winds 10 to 20 kt. Seas 9 to 12 ft. .WED...NE winds 10 to 20 kt. Seas 9 to 12 ft. .WED NIGHT...N winds 10 to 15 kt. Seas 10 to 15 ft. .THU...N winds 10 to 15 kt. Seas 10 to 15 ft. .THU NIGHT...NW winds 10 to 15 kt. Seas 8 to 13 ft. .FRI...W winds less than 10 kt. Seas 8 to 11 ft. .FRI NIGHT...W winds less than 10 kt, shifting to S after midnight. Seas 7 to 10 ft. ATLC waters S of 22N W of 65W .TODAY...NE winds 10 kt. Seas 4 to 6 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...NE winds less than 10 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .WED...E winds 10 to 15 kt. Seas 6 to 8 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. .THU...SE winds 10 to 15 kt. Seas 6 to 8 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft. .FRI...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 5 to 7 ft. .FRI NIGHT...SE winds less than 10 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...W winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...W winds 10 to 20 kt. Seas 6 to 9 ft. .TUE...W winds 10 to 20 kt. Seas 8 to 11 ft. .TUE NIGHT...W winds 10 to 20 kt. Seas 8 to 11 ft. .WED...SW winds 10 to 15 kt. Seas 7 to 10 ft. .WED NIGHT...SW winds 10 to 15 kt. Seas 6 to 9 ft. .THU...S winds 10 kt. Seas 6 to 9 ft. .THU NIGHT...SE winds 10 kt. Seas 6 to 8 ft. .FRI...SE winds 10 kt. Seas 6 to 7 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft.