000 FZNT31 KNHC 230928 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 528 AM EDT Sun Aug 23 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...Tropical Storm Marco centered near 23.7N 87.0W 994 mb at 5 AM EDT is moving NNW at 11 kt. Maximum sustained winds 60 kt gusts 75 kt. Marco will intensify to a hurricane near 25.3N 87.6W this afternoon with maximum sustained winds 65 kt gusts to 80 kt, reach to near 27.3N 88.6W late tonight. Tropical Storm Laura centered near 18.8N 70.9W 1005 mb at 5 AM EDT is moving WNW at 16 kt. Maximum sustained winds 40 kt gusts 50 kt. Laura will maintain intensity as it moves inland over Haiti to near 19.8N 73.7W this afternoon, inland eastern Cuba near 20.9N 77.5W late tonight, inland western Cuba to near 22.2N 81.1W Mon afternoon, then begin to gradually intensify as it moves over the southeastern Gulf of Mexico near 23.5N 84.2W late Mon night with maximum sustained winds 45 kt gusts 55 kt. NW Caribbean W of 85W .TODAY...SE winds 10 to 20 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. .MON...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 ft. .TUE...SE winds 10 to 20 kt. Seas 3 to 5 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .WED...E winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .THU...E winds 10 to 20 kt. Seas 3 to 5 ft. Caribbean N of 15N between 72W and 85W ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS POSSIBLE. S of 18N, E winds 10 to 20 kt. Elsewhere, E winds 15 to 25 kt, increasing to 30 to 40 kt in the afternoon. Seas 3 to 4 ft. .TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. S of 18N, SE winds 15 to 25 kt. Elsewhere, E winds 30 to 40 kt, diminishing to 15 to 25 kt after midnight. Seas 3 to 5 ft. .MON...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 15 to 25 kt S of 18N, and S 30 to 40 kt elsewhere. Seas 3 to 5 ft S of 18N and 7 to 10 ft elsewhere. .MON NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. S of 18N, E winds 10 to 20 kt. Seas 4 to 6 ft. Elsewhere, SE winds 30 to 40 kt, diminishing to 15 to 25 kt late. Seas 6 to 8 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 20 kt. Seas 4 to 6 ft S of 18N, and 3 ft elsewhere. .THU...E winds 15 to 25 kt. Seas 5 to 7 ft S of 18N, and 3 to 5 ft elsewhere. Caribbean from 11N to 15N W of 72W .TODAY...SE winds less than 10 kt. Seas 3 ft. .TONIGHT...Within 90 nm of coast of Colombia, NE winds less than 10 kt, becoming E 10 to 20 kt late. Elsewhere, E winds 10 to 20 kt. Seas 4 to 6 ft. .MON...E winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...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 20 kt. Seas 4 to 6 ft. .THU...E winds 10 to 20 kt within 90 nm of coast of Colombia, and SE 15 to 25 kt elsewhere. Seas 4 to 6 ft. SW Caribbean S of 11N .TODAY...NW winds less than 10 kt, shifting to SW in the afternoon. Seas 2 ft or less. .TONIGHT...N winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 2 ft or less. .MON...E winds less than 10 kt. Seas 2 ft or less. .MON NIGHT...Variable winds less than 10 kt. Seas 2 ft or less, building to 3 ft after midnight. .TUE...S winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. .WED...S winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. .THU...SW winds 10 to 15 kt. Seas 3 to 5 ft. Caribbean between 64W and 72W .TODAY...S winds 10 kt Gulf of Venezuela, and SE 20 to 30 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 5 to 7 ft elsewhere. .TONIGHT...E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .MON...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...E winds 10 to 20 kt. Gulf of Venezuela, seas 3 ft in the morning, subsiding to 2 ft or less. Elsewhere, seas 3 to 5 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .WED...E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .WED NIGHT...E winds 10 to 20 kt. Gulf of Venezuela, seas 2 ft or less, building to 3 to 4 ft after midnight. Elsewhere, seas 4 to 6 ft. .THU...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...E winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .MON...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED...E winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .THU...E winds 10 to 20 kt. Seas 4 to 6 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .MON...E winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 5 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 20 kt. Seas 4 to 6 ft. .THU...E winds 10 to 20 kt. Seas 5 to 7 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Tropical Storm Laura centered near 18.8N 70.9W 1005 mb at 5 AM EDT is moving WNW at 16 kt. Maximum sustained winds 40 kt gusts 50 kt. Laura will maintain intensity as it moves inland over Haiti to the Windward Passage near 19.8N 73.7W this afternoon, inland eastern Cuba near 20.9N 77.5W late tonight, inland western Cuba to near 22.2N 81.1W Mon afternoon, then begin to gradually intensify as it moves over the southeastern Gulf of Mexico near 23.5N 84.2W late Mon night. Otherwise, relatively weak high pressure will be over the area. ATLC waters from 27N to 31N W of 77W .TODAY...SE winds 10 to 15 kt. Seas 4 to 5 ft. .TONIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. .MON...SE winds 15 to 25 kt. Seas 6 to 9 ft. .MON NIGHT...SE winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...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...SE winds 10 to 15 kt. Seas 4 ft. .THU...SE winds 10 kt. Seas 3 to 4 ft. ATLC waters from 27N to 31N between 65W and 77W .TODAY...E winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft W of 70W, and 4 to 6 ft elsewhere. .MON...E winds 10 to 20 kt. Seas 6 to 9 ft W of 70W, and 4 to 6 ft elsewhere. .MON NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft W of 70W, and 4 to 5 ft elsewhere. .TUE...E winds 10 to 15 kt W of 70W, and E less than 10 kt elsewhere. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 15 kt W of 70W, and SE less than 10 kt elsewhere. Seas 4 to 5 ft. .WED...NE winds less than 10 kt W of 70W, and SW 10 to 15 kt elsewhere. Seas 4 to 5 ft. .WED NIGHT...SE winds less than 10 kt W of 70W, and W 10 to 15 kt elsewhere. Seas 4 to 5 ft. .THU...W of 70W, SE winds less than 10 kt. Elsewhere, W winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 4 to 5 ft. Bahamas N of 22N ...TROPICAL STORM WARNING... .TODAY...E winds 20 to 30 kt. Seas 5 to 7 ft. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. E winds 25 to 35 kt. Seas 6 to 9 ft. .MON...TROPICAL STORM CONDITIONS EXPECTED. SE winds 25 to 35 kt. Seas 6 to 8 ft. .MON NIGHT...E winds 20 to 30 kt. Seas 4 to 6 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .WED...E winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 ft. .THU...E winds 10 to 15 kt. Seas 3 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...E winds 20 to 30 kt. Seas 8 to 13 ft W of 70W, and 8 to 11 ft elsewhere. .TONIGHT...E winds 20 to 30 kt W of 70W, and E 10 to 20 kt elsewhere. Seas 8 to 13 ft W of 70W, and 6 to 8 ft elsewhere. .MON...E winds 10 to 20 kt W of 70W, and E 10 to 15 kt elsewhere. Seas 7 to 10 ft W of 70W, and 5 to 6 ft elsewhere. .MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .TUE...E winds 10 to 15 kt. Seas 5 to 6 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 5 ft. .WED...SE winds 10 to 15 kt. Seas 4 to 5 ft. .WED NIGHT...W of 70W, E winds 10 to 15 kt. Elsewhere, SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 5 ft. .THU...SE winds 10 to 15 kt. Seas 4 to 5 ft. ATLC waters S of 22N W of 65W ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS EXPECTED. E winds 30 to 40 kt. Seas 10 to 18 ft. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. E winds 30 to 40 kt. Seas 10 to 18 ft. .MON...E winds 20 to 30 kt, diminishing to 10 to 20 kt in the afternoon. Seas 5 to 7 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED...E winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .THU...E winds 10 to 20 kt. Seas 3 to 5 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...E winds 10 to 20 kt. Seas 6 to 7 ft. .TONIGHT...E winds 10 to 20 kt. Seas 5 to 6 ft. .MON...E winds 10 to 20 kt. Seas 5 to 6 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 5 to 6 ft. .TUE...E winds 10 to 15 kt. Seas 5 to 6 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. .WED...E winds 10 to 15 kt. Seas 5 to 6 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. .THU...E winds 10 to 15 kt. Seas 5 to 6 ft.