000 FZNT31 KNHC 301506 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1106 AM EDT Wed Aug 30 2023 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 strong trades will pulse in the central Caribbean through Fri night. Gentle to moderate trades will prevail in the western Caribbean and moderate to fresh in the eastern Caribbean through then as well. Trades will weaken this weekend as the pressure gradient relaxes. NW Caribbean W of 85W .THIS AFTERNOON...S winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...SE winds 10 to 20 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. .THU...SE winds 10 to 20 kt. Seas 3 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. .FRI...E winds 10 to 20 kt. Seas 3 to 4 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .SAT...E winds 10 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. .SUN...NE winds less than 10 kt. Seas 3 ft. Caribbean N of 15N between 72W and 85W .THIS AFTERNOON...SE winds 10 to 20 kt. Seas 3 to 5 ft. .TONIGHT...E winds 15 to 25 kt S of 18N, and SE 10 to 20 kt elsewhere. Seas 3 to 5 ft. .THU...E winds 15 to 25 kt S of 18N, and SE 10 to 20 kt elsewhere. Seas 4 to 6 ft. .THU NIGHT...S of 18N, E winds 10 to 20 kt. Elsewhere, E winds 20 to 30 kt, diminishing to 10 to 20 kt after midnight. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 5 to 7 ft S of 18N, and 3 to 4 ft elsewhere. .FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft S of 18N, and 3 to 4 ft elsewhere. .SAT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. Caribbean from 11N to 15N W of 72W .THIS AFTERNOON...E winds 15 to 25 kt. Seas 6 to 7 ft within 90 nm of coast of Colombia, and 3 to 5 ft elsewhere. .TONIGHT...NE winds 15 to 25 kt. Seas 6 to 8 ft within 90 nm of coast of Colombia, and 4 to 6 ft elsewhere. .THU...E winds 15 to 25 kt. Seas 5 to 7 ft. .THU NIGHT...Within 90 nm of coast of Colombia, E winds 20 to 30 kt, diminishing to 10 to 20 kt after midnight. Elsewhere, E winds 20 to 30 kt. Seas 5 to 7 ft. .FRI...E winds 15 to 25 kt. Seas 5 to 7 ft. .FRI NIGHT...NE winds 15 to 25 kt. Seas 5 to 7 ft. .SAT...E winds 15 to 25 kt. Seas 5 to 7 ft. .SAT NIGHT...NE winds 10 to 20 kt within 90 nm of coast of Colombia, and NE 15 to 25 kt elsewhere. Seas 5 to 7 ft. .SUN...NE winds 10 to 20 kt. Seas 3 to 5 ft. SW Caribbean S of 11N .THIS AFTERNOON...NE winds 10 to 20 kt. Seas 2 ft or less. .TONIGHT...N winds 10 to 20 kt. Seas 3 to 5 ft. .THU...NE winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...NW winds less than 10 kt, becoming N 10 to 20 kt after midnight. Seas 3 to 5 ft. .FRI...S winds 10 to 15 kt, shifting to SW in the afternoon. Seas 3 to 5 ft. .FRI NIGHT...NW winds less than 10 kt, shifting to N after midnight. Seas 3 to 5 ft. .SAT...NW winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...NW winds 10 to 15 kt. Seas 3 to 5 ft. Caribbean between 64W and 72W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .TONIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. .THU...E winds 15 to 25 kt. Seas 3 to 5 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .THU NIGHT...E winds 20 to 30 kt. Seas 5 to 7 ft. .FRI...E winds 15 to 25 kt. Seas 3 to 5 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .FRI NIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft. .SAT...NE winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .SUN...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. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N 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 3 to 5 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 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 to 4 ft. .SUN...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 20 kt. Seas 3 to 5 ft. .TONIGHT...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 15 to 25 kt. Seas 3 to 4 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. .SAT...E winds 10 to 20 kt. Seas 3 to 4 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. .SUN...E winds 10 to 20 kt. Seas 3 to 5 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Hurricane Idalia is inland near 30.6N 83.2W at 11 AM EDT, and is moving north-northeast at 17 kt. Maximum sustained winds are 80 kt with gusts to 100 kt, and the minimum central pressure is 971 mb. Idalia will move inland to 32.4N 81.1W this evening, weaken to a tropical storm near 33.8N 77.6W Thu morning, 33.9N 74.0W Thu evening, 33.2N 71.1W Fri morning, 32.4N 69.1W Fri evening, and 31.9N 68.0W Sat morning. Idalia will change little in intensity as it moves to near 31.4N 66.3W early Sun. Hurricane Franklin is north of area near 33.6N 67.1W at 11 AM EDT, and is moving northeast at 11 kt. Maximum sustained winds are 90 kt with gusts to 110 kt, and the minimum central pressure is 961 mb. Fresh to strong winds and rough to very rough seas associated with Franklin will continue to affect the northern waters today and tonight. ATLC waters from 27N to 31N W of 77W ...TROPICAL STORM WARNING... .THIS AFTERNOON...TROPICAL STORM CONDITIONS. S winds 30 to 40 kt. Seas 6 to 8 ft. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. SW winds 30 to 40 kt. Seas 8 to 11 ft. .THU...TROPICAL STORM CONDITIONS POSSIBLE. SW winds 25 to 35 kt. Seas 7 to 10 ft. .THU NIGHT...W winds 20 to 30 kt. Seas 6 to 9 ft. .FRI...NW winds 15 to 25 kt. Seas 6 to 8 ft. .FRI NIGHT...N winds 15 to 25 kt. Seas 7 to 10 ft. .SAT...N winds 15 to 25 kt. Seas 7 to 10 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .SUN...NE winds 10 to 20 kt. Seas 7 to 9 ft. ATLC waters from 27N to 31N between 65W and 77W ...TROPICAL STORM WARNING... .THIS AFTERNOON...SW winds 10 to 20 kt W of 70W, and W 15 to 25 kt elsewhere. Seas 6 to 8 ft W of 70W, and 8 to 11 ft elsewhere. .TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. W of 70W, SW winds 15 to 25 kt, increasing to 25 to 35 kt after midnight. Elsewhere, W winds 10 to 20 kt. Seas 5 to 7 ft W of 70W, and 7 to 10 ft elsewhere. .THU...TROPICAL STORM CONDITIONS POSSIBLE. SW winds 25 to 35 kt W of 70W, and W 10 to 20 kt elsewhere. Seas 6 to 9 ft. .THU NIGHT...SW winds 20 to 30 kt W of 70W, and W 10 to 20 kt elsewhere. Seas 7 to 10 ft W of 70W, and 4 to 6 ft elsewhere. .FRI...W winds 20 to 30 kt W of 70W, and SW 15 to 25 kt elsewhere. Seas 7 to 10 ft. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SUN...TROPICAL STORM CONDITIONS POSSIBLE. Bahamas N of 22N .THIS AFTERNOON...S winds 10 to 15 kt. Seas 3 ft. .TONIGHT...S winds 10 to 15 kt. Seas 2 ft or less. .THU...SE winds 10 to 15 kt. Seas 2 ft or less. .THU NIGHT...SE winds 10 to 15 kt. Seas 2 ft or less. .FRI...SE winds 10 to 15 kt, shifting to E in the afternoon. Seas 2 ft or less. .FRI NIGHT...NE winds less than 10 kt. Seas 2 ft or less, building to 3 ft after midnight. .SAT...NE winds less than 10 kt. Seas 3 to 4 ft. .SAT NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 4 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .THIS AFTERNOON...S winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. .THU...S winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .FRI NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .SAT...W of 70W, E winds less than 10 kt, shifting to NE in the afternoon. Elsewhere, S winds less than 10 kt. Seas 5 to 7 ft. .SAT NIGHT...W of 70W, NE winds 10 to 15 kt, shifting to E after midnight. Elsewhere, S winds less than 10 kt. Seas 6 to 8 ft. .SUN...SE winds less than 10 kt. Seas 6 to 8 ft. ATLC waters S of 22N W of 65W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 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 3 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 5 ft. ATLC waters from 19N to 22N between 55W and 65W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 5 ft. .TONIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .THU...E winds 10 to 15 kt. Seas 4 to 5 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 kt. Seas 4 ft. .SAT NIGHT...E winds 10 kt. Seas 4 to 5 ft. .SUN...E winds less than 10 kt. Seas 4 to 5 ft.