000 FZNT31 KNHC 020915 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 515 AM EDT Sat Sep 2 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 in the central Caribbean will diminish today with the relaxing pressure gradient. Gentle to moderate winds with slight to moderate seas will prevail through the weekend. Fresh winds will return in the central and eastern Caribbean by early next week and continue through Wed. NW Caribbean W of 85W .TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...NE winds less than 10 kt. Seas 3 to 4 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .MON...NE winds 10 to 15 kt, shifting to SE in the afternoon. Seas 3 to 4 ft. .MON NIGHT...E winds less than 10 kt, shifting to SE after midnight. Seas 3 ft. .TUE...SE winds 10 to 15 kt. Seas 3 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 3 ft. .WED...E winds 10 to 15 kt. Seas 3 ft. Caribbean N of 15N between 72W and 85W .TODAY...E winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON...SE winds 10 to 15 kt. Seas 3 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. .TUE...E winds 10 to 20 kt. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. .TUE NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. .WED...E winds 10 to 20 kt. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. Caribbean from 11N to 15N W of 72W .TODAY...NE winds 15 to 25 kt. Seas 6 to 8 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .MON...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .TUE...E winds 10 to 20 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 within 90 nm of coast of Colombia, and E 15 to 25 kt elsewhere. Seas 4 to 6 ft. SW Caribbean S of 11N .TODAY...NE winds 15 to 25 kt. Seas 5 to 7 ft. .TONIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft. .SUN...NW winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...NW winds less than 10 kt, shifting to W after midnight. Seas 3 to 4 ft. .MON...SW winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 ft. .MON NIGHT...NW winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. .TUE...Variable winds less than 10 kt. Seas 2 ft or less. .TUE NIGHT...N winds less than 10 kt. Seas 2 ft or less. .WED...N winds less than 10 kt. Seas 2 ft or less, building to 3 to 4 ft in the afternoon. Caribbean between 64W and 72W .TODAY...E winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .SUN...Gulf of Venezuela, E winds 10 to 15 kt, shifting to NE in the afternoon. Elsewhere, E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .SUN NIGHT...E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .MON...Gulf of Venezuela, E winds 10 to 15 kt, shifting to SW in the afternoon,Seas 3 ft in the morning, subsiding to 2 ft or less. Elsewhere, E winds 10 to 20 kt,Seas 4 to 6 ft. .MON NIGHT...E winds 10 to 20 kt. Gulf of Venezuela, seas 2 ft or less, building to 3 ft after midnight. Elsewhere, seas 5 to 7 ft. .TUE...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .TUE NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .WED...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...SE winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...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 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. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .TODAY...E winds 10 to 20 kt. Seas 3 to 4 ft. .TONIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .SUN...E winds 10 to 20 kt. Seas 4 to 5 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 5 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 3 to 5 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Post-Tropical Cyclone Idalia is near 31.7N 64.6W at 5 AM EDT, and is moving east at 5 kt. Maximum sustained winds are 50 kt with gusts to 60 kt, and the minimum central pressure is 999 mb. Idalia will move to 31.5N 63.9W this afternoon, 32.1N 62.2W Sun morning, become extratropical and move to 33.6N 60.2W Sun afternoon, and 35.7N 58.6W Mon morning. Gale force winds and rough to very rough seas associated with Idalia will impact the north waters through the weekend. Conditions will improve by Mon night. Meanwhile, Tropical Storm Gert is near 27.7N 54.3W at 5 AM EDT, and is moving northeast at 2 kt. Maximum sustained winds are 40 kt with gusts to 50 kt, and the minimum central pressure is 1003 mb. Gert will move to 28.0N 53.8W this afternoon, 29.2N 53.1W Sun morning, 30.8N 52.3W Sun afternoon, become post- tropical and move to 33.4N 51.7W Mon morning, and dissipate Mon afternoon. Gert will slowly move away from the eastern offshore waters today. Strong winds and moderate seas will begin to dissipate later today and improve by tonight. ATLC waters from 27N to 31N W of 77W .TODAY...NE winds 10 to 20 kt. Seas 7 to 9 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. .SUN...NE winds 10 to 15 kt. Seas 6 to 8 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. .MON...NE winds 10 to 15 kt. Seas 5 to 7 ft. .MON NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. .TUE...NE winds less than 10 kt. Seas 4 to 6 ft. .TUE NIGHT...NE winds less than 10 kt, shifting to SE after midnight. Seas 4 to 5 ft. .WED...NW winds 10 to 15 kt. Seas 3 to 4 ft. ATLC waters from 27N to 31N between 65W and 77W ...GALE WARNING... ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS. NE winds 15 to 25 kt W of 70W, and N 35 to 45 kt elsewhere. Seas 9 to 13 ft W of 70W, and 13 to 18 ft elsewhere. .TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 10 to 20 kt W of 70W, and N 25 to 35 kt elsewhere. Seas 8 to 12 ft W of 70W, and 11 to 16 ft elsewhere. .SUN...NE winds 10 to 15 kt W of 70W, and N 15 to 25 kt elsewhere. Seas 8 to 11 ft W of 70W, and 10 to 14 ft elsewhere. .SUN NIGHT...NE winds 10 to 20 kt. Seas 8 to 11 ft. .MON...W of 70W, NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Elsewhere, N winds less than 10 kt. Seas 6 to 9 ft. .MON NIGHT...NE winds less than 10 kt. Seas 6 to 7 ft. .TUE...N winds less than 10 kt. Seas 5 to 6 ft. .TUE NIGHT...W of 70W, NW winds less than 10 kt. Elsewhere, NW winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 5 ft. .WED...NW winds 10 to 15 kt. Seas 4 to 5 ft. Bahamas N of 22N .TODAY...NE winds 10 to 15 kt. Seas 3 to 5 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. .SUN...NE winds 10 to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 20 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 4 ft. .TUE...E winds 10 to 15 kt, shifting to NE in the afternoon. Seas 3 to 4 ft. .TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .WED...NE winds less than 10 kt. Seas 3 to 4 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...NW winds 10 to 20 kt. Seas 8 to 11 ft. .TONIGHT...NW winds 10 to 20 kt. Seas 8 to 11 ft. .SUN...W of 70W, NE winds 10 to 15 kt. Elsewhere, W winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 7 to 10 ft. .SUN NIGHT...NE winds 10 to 15 kt W of 70W, and SW less than 10 kt elsewhere. Seas 7 to 9 ft. .MON...W of 70W, E winds less than 10 kt. Elsewhere, SW winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 6 to 8 ft. .MON NIGHT...E winds less than 10 kt. Seas 6 to 7 ft. .TUE...E winds less than 10 kt. Seas 5 to 6 ft. .TUE NIGHT...E winds less than 10 kt. Seas 5 to 6 ft. .WED...E winds less than 10 kt. Seas 4 to 5 ft. ATLC waters S of 22N W of 65W .TODAY...E winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .TONIGHT...E winds less than 10 kt, shifting to SE after midnight. Seas 4 to 6 ft. .SUN...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .MON...SE winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...SE winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...SE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 5 ft. .WED...S winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...S winds less than 10 kt. Seas 4 to 5 ft. .TONIGHT...S winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 5 to 7 ft. .SUN...S winds 10 to 15 kt. Seas 5 to 7 ft. .SUN NIGHT...S winds less than 10 kt. Seas 6 to 7 ft. .MON...S winds 10 to 15 kt. Seas 6 ft. .MON NIGHT...E winds less than 10 kt. Seas 5 to 6 ft. .TUE...SE winds less than 10 kt. Seas 5 to 6 ft. .TUE NIGHT...E winds less than 10 kt. Seas 5 to 6 ft. .WED...NE winds less than 10 kt. Seas 5 to 6 ft.