000 FZNT31 KNHC 022058 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 458 PM EDT Sun Aug 2 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 surface trough will slightly increase winds and seas over the Tropical N Atlantic waters N of 15N and E of 64W tonight, then pass N of the area on Mon. Fresh trade winds over the central Caribbean waters are expected to strengthen by midweek following the passage of a tropical wave. NW Caribbean W of 85W .TONIGHT...NE winds less than 10 kt, shifting to E after midnight. Seas 2 ft or less. .MON...SE winds less than 10 kt. Seas 2 ft or less. .MON NIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 2 ft or less. .TUE...E winds less than 10 kt. Seas 2 ft or less. .TUE NIGHT...E winds 10 to 15 kt. Seas 2 ft or less. .WED...E winds less than 10 kt. Seas 2 ft or less. .WED NIGHT...E winds 10 to 15 kt. Seas 2 ft or less, building to 3 to 4 ft after midnight. .THU...E winds 10 to 20 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. Caribbean N of 15N between 72W and 85W .TONIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. .MON...E winds 10 to 20 kt. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. .MON NIGHT...E winds 15 to 25 kt S of 18N, and E 10 to 15 kt elsewhere. Seas 4 to 6 ft S of 18N, and 2 ft or less elsewhere. .TUE...E winds 10 to 20 kt. S of 18N, seas 4 to 6 ft. Elsewhere, seas 2 ft or less, building to 3 ft in the afternoon. .TUE NIGHT...E winds 15 to 25 kt S of 18N, and E 10 to 20 kt elsewhere. Seas 4 to 6 ft S of 18N, and 3 ft elsewhere. .WED...E winds 15 to 25 kt S of 18N, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft S of 18N, and 3 to 4 ft elsewhere. .WED NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .THU...E winds 10 to 20 kt. Seas 6 to 8 ft S of 18N, and 3 to 5 ft elsewhere. .THU NIGHT...E winds 15 to 25 kt S of 18N, and E 10 to 20 kt elsewhere. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. Caribbean from 11N to 15N W of 72W .TONIGHT...NE winds 15 to 25 kt within 90 nm of coast of Colombia, and NE 10 to 20 kt elsewhere. Seas 4 to 6 ft. .MON...E winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...NE winds 10 to 20 kt within 90 nm of coast of Colombia, and NE 15 to 25 kt elsewhere. Seas 4 to 6 ft. .TUE...SE winds 10 to 20 kt within 90 nm of coast of Colombia, and E 15 to 25 kt elsewhere. Seas 4 to 6 ft. .TUE NIGHT...E winds 15 to 25 kt within 90 nm of coast of Colombia, and NE 15 to 25 kt elsewhere. Seas 5 to 7 ft. .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 15 to 25 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft. .FRI...E winds 15 to 25 kt. Seas 6 to 8 ft. SW Caribbean S of 11N .TONIGHT...N winds 10 to 20 kt. Seas 3 to 5 ft. .MON...NE winds 10 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE...NE winds less than 10 kt, shifting to W in the afternoon. Seas 3 to 4 ft. .TUE NIGHT...NW winds less than 10 kt. Seas 3 to 4 ft. .WED...NW winds 10 to 15 kt, shifting to SW in the afternoon. Seas 3 to 4 ft. .WED NIGHT...SW winds less than 10 kt. Seas 3 to 4 ft. .THU...W winds less than 10 kt. Seas 3 to 5 ft. .THU NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. .FRI...E winds less than 10 kt, shifting to N in the afternoon. Seas 3 to 5 ft. Caribbean between 64W and 72W .TONIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 15 to 25 kt elsewhere. Seas 3 to 4 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .MON...SE winds 10 to 20 kt Gulf of Venezuela, and SE 15 to 25 kt elsewhere. Gulf of Venezuela, seas 3 ft in the morning, subsiding to 2 ft or less. Elsewhere, seas 4 to 6 ft. .MON NIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 15 to 25 kt elsewhere. Gulf of Venezuela, seas 2 ft or less, building to 3 ft after midnight. Elsewhere, seas 5 to 7 ft. .TUE...Gulf of Venezuela, SE winds 10 to 20 kt, shifting to SW 10 to 15 kt in the afternoon. Elsewhere, SE winds 15 to 25 kt. Seas 3 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .TUE NIGHT...NE winds 15 to 25 kt Gulf of Venezuela, and E 15 to 25 kt elsewhere. Gulf of Venezuela, seas 2 ft or less, building to 3 to 5 ft after midnight. Elsewhere, seas 5 to 7 ft. .WED...E winds 15 to 25 kt. Seas 3 to 5 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .WED NIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft. .THU...E winds 10 to 20 kt Gulf of Venezuela, and E 15 to 25 kt elsewhere. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 20 kt Gulf of Venezuela, and E 15 to 25 kt elsewhere. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .FRI...E winds 10 to 20 kt Gulf of Venezuela, and E 15 to 25 kt elsewhere. 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 .TONIGHT...SE 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 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 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 20 kt. Seas 4 to 6 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TONIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .MON...E winds 10 to 20 kt. Seas 3 to 5 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 20 kt. Seas 3 to 5 ft. .WED...E winds 10 to 20 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 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 20 kt. Seas 4 to 6 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Tropical Storm Isaias is centered near 27.8N 79.8W 994 mb at 5 PM EDT moving NNW at 8 kt. Maximum sustained winds 60 kt gusts 75 kt. Isaias will move near the east coast of Florida to 29.0N 80.1W Mon morning, 30.9N 79.9W Mon afternoon, then accelerate N-NE away from the forecast waters to near 33.7N 78.8W Tue morning. Large seas associated with Isaias will spread northward across the waters W of 75W through Mon, then gradually subside late Mon night through Tue night. A low pressure trough associated with a tropical wave will approach the SE waters tonight. Environmental conditions are conducive for development during the next few days, and a tropical depression could form by the middle of the week. ATLC waters from 27N to 31N W of 77W ...TROPICAL STORM WARNING... .TONIGHT...TROPICAL STORM CONDITIONS. SE winds 45 to 55 kt. Seas 10 to 15 ft. .MON...TROPICAL STORM CONDITIONS EXPECTED. S winds 45 to 55 kt. Seas 12 to 17 ft. .MON NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. S winds 25 to 35 kt. Seas 9 to 14 ft, subsiding to 7 to 10 ft after midnight. .TUE...SW winds 15 to 25 kt. Seas 6 to 9 ft. .TUE NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. .WED...S winds 10 to 15 kt. Seas 4 to 5 ft. .WED NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .THU...S winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...S winds 10 to 15 kt, shifting to SE in the afternoon. Seas 3 ft. ATLC waters from 27N to 31N between 65W and 77W .TONIGHT...SE winds 15 to 25 kt W of 70W, and E 10 to 15 kt elsewhere. Seas 6 to 8 ft W of 70W, and 4 to 5 ft elsewhere. .MON...SE winds 20 to 30 kt W of 70W, and E 10 to 15 kt elsewhere. Seas 6 to 8 ft W of 70W, and 4 to 5 ft elsewhere. .MON NIGHT...SE winds 20 to 30 kt W of 70W, and E 10 to 20 kt elsewhere. Seas 6 to 8 ft W of 70W, and 4 to 5 ft elsewhere. .TUE...SE winds 15 to 25 kt. Seas 5 to 7 ft. .TUE NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .WED...W of 70W, S winds 10 to 15 kt, shifting to SW in the afternoon. Elsewhere, S winds 10 to 15 kt. Seas 4 to 5 ft. .WED NIGHT...E winds less than 10 kt W of 70W, and SE 10 to 15 kt elsewhere. Seas 3 to 5 ft. .THU...W of 70W, E winds less than 10 kt, shifting to NW in the afternoon. Elsewhere, SE winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...NE winds less than 10 kt W of 70W, and SE 10 to 15 kt elsewhere. Seas 3 to 4 ft. .FRI...E winds less than 10 kt. Seas 3 to 4 ft. Bahamas N of 22N .TONIGHT...SE winds 20 to 30 kt. Seas 4 to 6 ft. .MON...SE winds 15 to 25 kt. Seas 3 to 5 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...SE winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .WED...SE winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...E winds 10 to 15 kt. Seas 3 ft. .THU...SE winds 10 to 15 kt. Seas 3 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 2 ft or less. .FRI...E winds 10 to 15 kt. Seas 2 ft or less. ATLC waters from 22N to 27N between 65W and the Bahamas .TONIGHT...E winds 15 to 25 kt W of 70W, and E 10 to 20 kt elsewhere. Seas 5 to 6 ft. .MON...SE winds 10 to 20 kt W of 70W, and E 15 to 25 kt elsewhere. Seas 5 to 6 ft. .MON NIGHT...SE winds 10 to 15 kt W of 70W, and SE 15 to 25 kt elsewhere. Seas 5 to 7 ft. .TUE...SE winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .WED...SE winds 10 to 15 kt. Seas 4 to 5 ft. .WED NIGHT...E winds 10 to 15 kt W of 70W, and E less than 10 kt elsewhere. Seas 3 to 4 ft. .THU...SE winds 10 to 15 kt W of 70W, and SE less than 10 kt elsewhere. Seas 3 to 4 ft. .THU NIGHT...E winds 10 to 15 kt W of 70W, and SE less than 10 kt elsewhere. Seas 3 to 4 ft. .FRI...SE winds 10 to 15 kt. Seas 3 ft. ATLC waters S of 22N W of 65W .TONIGHT...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 3 to 5 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 3 to 5 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. .THU NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .FRI...E winds 10 to 20 kt. Seas 3 to 5 ft. ATLC waters from 19N to 22N between 55W and 65W .TONIGHT...E winds 15 to 25 kt. Seas 6 to 7 ft. .MON...SE winds 10 to 20 kt. Seas 5 to 7 ft. .MON NIGHT...E winds 10 to 15 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 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 4 ft. .THU...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 5 ft.