000 FZNT31 KNHC 290858 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 458 AM EDT Tue Aug 29 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...Hurricane Idalia is near 23.1N 85.0W at 5 AM EDT, and is moving north at 12 kt. Maximum sustained winds are 65 kt with gusts to 80 kt, and the minimum central pressure is 981 mb. Idalia will move to 24.9N 84.8W this afternoon, then continuing N away from the NW Caribbean to 27.8N 84.3W Wed morning. Meanwhile High pressure will build westward across the western Atlantic through Thu as Hurricane Franklin lifts north of the region. This will lead to moderate to fresh trade winds in the eastern Caribbean by tonight, then in the central Caribbean by Tue, locally strong there. NW Caribbean W of 85W ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS. SW winds 25 to 35 kt, diminishing to 20 to 30 kt late. Seas 8 to 20 ft, diminishing to 4 to 6 ft late. .TONIGHT...S winds 10 to 20 kt. Seas 3 to 5 ft. .WED...S winds 10 to 15 kt. Seas 3 to 5 ft. .WED NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .THU...S winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...E winds 10 to 15 kt. Seas 3 to 4 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. Caribbean N of 15N between 72W and 85W .TODAY...SE winds 10 to 20 kt S of 18N, and S 20 to 30 kt elsewhere. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 20 kt S of 18N, and SE 15 to 25 kt elsewhere. Seas 3 to 5 ft. .WED...SE winds 10 to 20 kt. Seas 3 to 5 ft. .WED NIGHT...E winds 15 to 25 kt S of 18N, and SE 10 to 15 kt elsewhere. Seas 4 to 6 ft. .THU...E winds 15 to 25 kt S of 18N, and SE 10 to 15 kt elsewhere. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft S of 18N, and 3 ft elsewhere. .FRI...E winds 10 to 20 kt. Seas 4 to 6 ft S of 18N, and 3 ft elsewhere. .FRI NIGHT...E winds 10 to 20 kt. S of 18N, seas 4 to 6 ft. Elsewhere, seas 3 ft in the evening, subsiding to 2 ft or less. .SAT...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. Caribbean from 11N to 15N W of 72W .TODAY...E winds 10 to 20 kt. Seas 2 ft or less, building to 3 ft in the afternoon. .TONIGHT...E winds 15 to 25 kt. Seas 3 to 5 ft. .WED...E winds 15 to 25 kt. Seas 6 to 7 ft within 90 nm of coast of Colombia, and 3 to 5 ft elsewhere. .WED NIGHT...E 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...E winds 15 to 25 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 20 kt. Seas 4 to 6 ft. SW Caribbean S of 11N .TODAY...SE winds less than 10 kt. Seas 2 ft or less. .TONIGHT...NE winds less than 10 kt. Seas 2 ft or less. .WED...N winds 10 to 15 kt. Seas 2 ft or less. .WED NIGHT...N winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 ft. .THU...N winds 10 to 15 kt, shifting to NW in the afternoon. Seas 3 to 5 ft. .THU NIGHT...N winds less than 10 kt. Seas 3 to 5 ft. .FRI...SE winds less than 10 kt, shifting to W in the afternoon. Seas 3 to 5 ft. .FRI NIGHT...N winds less than 10 kt. Seas 3 to 5 ft. .SAT...NW winds less than 10 kt. Seas 3 to 4 ft. Caribbean between 64W and 72W .TODAY...E winds 10 to 20 kt. Gulf of Venezuela, seas 2 ft or less, building to 3 ft in the afternoon. Elsewhere, seas 4 to 6 ft. .TONIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft. .WED...E winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. .THU...E winds 10 to 20 kt Gulf of Venezuela, and E 15 to 25 kt elsewhere. Seas 3 to 5 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .THU NIGHT...E winds 15 to 25 kt. Seas 3 to 5 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .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 10 to 20 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 20 kt. Seas 4 to 6 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 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 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 5 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 4 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...E winds 10 to 20 kt. Seas 3 to 5 ft. .TONIGHT...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 15 kt. Seas 3 to 5 ft. .THU NIGHT...E winds 10 to 15 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. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Major Hurricane Franklin is near 30.2N 70.8W at 5 AM EDT, and is moving north-northeast at 9 kt. Maximum sustained winds are 120 kt with gusts to 145 kt, and the minimum central pressure is 935 mb. Franklin will move N of the area to 31.3N 70.3W this afternoon, 33.0N 68.8W Wed morning, then to 34.8N 66.3W Wed afternoon when all associated conditions begin to lift N of 31N. Meanwhile, Hurricane Idalia is in the SE Gulf of Mexico near 23.1N 85.0W at 5 AM EDT, and is moving north at 12 kt. Maximum sustained winds are 65 kt with gusts to 80 kt, and the minimum central pressure is 981 mb. Idalia will move to 24.9N 84.8W this afternoon, 27.8N 84.3W Wed morning, inland to 30.6N 82.9W Wed afternoon, move inland and weaken to a tropical storm near 32.7N 80.5W Thu morning, 33.8N 77.5W Thu afternoon, and 33.9N 74.4W Fri morning. Idalia will change little in intensity as it moves to 33.3N 71.5W early Sat. Expect increasing winds and building seas E of Florida beginning late tonight as Idalia moves across the Eastern Gulf of Mexico. ATLC waters from 27N to 31N W of 77W ...TROPICAL STORM WARNING... .TODAY...SW winds less than 10 kt. Seas 6 to 9 ft. .TONIGHT...S winds 10 to 20 kt. Seas 6 to 8 ft. .WED...TROPICAL STORM CONDITIONS POSSIBLE. S winds 20 to 30 kt. Seas 6 to 9 ft. .WED NIGHT...TROPICAL STORM CONDITIONS EXPECTED. SW winds 30 to 40 kt. Seas 8 to 11 ft. .THU...SW winds 20 to 30 kt. Seas 7 to 10 ft. .THU NIGHT...W winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...NE winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .SAT...NE winds 10 to 15 kt. Seas 6 to 9 ft. ATLC waters from 27N to 31N between 65W and 77W ...HURRICANE WARNING... .TODAY...HURRICANE CONDITIONS. W winds 85 to 105 kt W of 70W, and S 50 to 65 kt elsewhere. Seas 12 to 17 ft. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. W of 70W, W winds 40 to 50 kt, diminishing to 20 to 30 kt after midnight,Seas 9 to 14 ft, subsiding to 8 to 11 ft after midnight. Elsewhere, SW winds 45 to 55 kt, diminishing to 25 to 35 kt after midnight,Seas 10 to 15 ft. .WED...SW winds 15 to 25 kt W of 70W, and W 20 to 30 kt elsewhere. Seas 7 to 10 ft W of 70W, and 8 to 13 ft elsewhere. .WED NIGHT...SW winds 20 to 30 kt W of 70W, and W 10 to 20 kt elsewhere. Seas 5 to 7 ft W of 70W, and 7 to 10 ft elsewhere. .THU...SW winds 20 to 30 kt W of 70W, and W 10 to 15 kt elsewhere. Seas 5 to 7 ft. .THU NIGHT...W of 70W, SW winds 15 to 25 kt. Elsewhere, W winds less than 10 kt, shifting to SW after midnight. Seas 5 to 7 ft. .FRI...W winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...W winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...NW winds 10 to 20 kt. Seas 5 to 7 ft. Bahamas N of 22N .TODAY...S winds 10 to 15 kt. Seas 3 ft. .TONIGHT...SE winds 10 to 20 kt. Seas 3 ft. .WED...S winds 10 to 20 kt. Seas 3 ft. .WED NIGHT...S winds 10 to 20 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. .SAT...NE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 ft or less. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...SW winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...SW winds 10 to 20 kt. Seas 6 to 8 ft. .WED...S winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...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 3 to 4 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 3 to 4 ft. ATLC waters S of 22N W of 65W .TODAY...SE winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .WED...SE winds 10 to 15 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. .FRI NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 4 ft in the morning, subsiding to 2 ft or less. ATLC waters from 19N to 22N between 55W and 65W .TODAY...SE winds 10 to 15 kt. Seas 4 ft. .TONIGHT...E winds 10 to 15 kt. Seas 4 ft. .WED...E winds 10 to 15 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 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 ft. .SAT...E winds less than 10 kt. Seas 3 to 4 ft.