000 FZNT31 KNHC 310859 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 459 AM EDT Thu Aug 31 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 with moderate seas. Meanwhile, gentle to moderate winds will prevail in the western Caribbean with moderate to fresh winds in the eastern Caribbean. Trades will weaken this weekend as the pressure gradient relaxes and continue through early next week. NW Caribbean W of 85W .TODAY...SE winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft in the afternoon. .TONIGHT...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 to 4 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .MON...E winds less than 10 kt. Seas 3 to 4 ft in the morning, subsiding to 2 ft or less. Caribbean N of 15N between 72W and 85W .TODAY...E winds 15 to 25 kt S of 18N, and SE 10 to 20 kt elsewhere. Seas 5 to 7 ft S of 18N, and 3 to 4 ft elsewhere. .TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...E winds 15 to 25 kt S of 18N, and E 10 to 15 kt elsewhere. 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 15 kt. Seas 3 to 5 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON...E winds 10 to 15 kt. Seas 3 ft. Caribbean from 11N to 15N W of 72W .TODAY...E winds 15 to 25 kt. Seas 5 to 7 ft. .TONIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. .FRI...E winds 15 to 25 kt. Seas 6 to 8 ft. .FRI NIGHT...NE winds 15 to 25 kt. Seas 5 to 7 ft. .SAT...E winds 15 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .MON...E winds 10 to 15 kt. Seas 3 to 4 ft. SW Caribbean S of 11N .TODAY...NE winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...N winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 6 ft. .FRI...NW winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...N winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 6 ft. .SAT...NE winds 10 to 20 kt, shifting to S 10 to 15 kt in the afternoon. Seas 4 to 6 ft. .SAT NIGHT...NW winds less than 10 kt, shifting to N after midnight. Seas 4 to 6 ft. .SUN...NW winds 10 to 15 kt, shifting to W in the afternoon. Seas 3 to 5 ft. .SUN NIGHT...W winds less than 10 kt. Seas 3 to 4 ft. .MON...SW winds less than 10 kt. Seas 3 ft. Caribbean between 64W and 72W .TODAY...E winds 15 to 25 kt. Seas 3 to 5 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .TONIGHT...E winds 20 to 30 kt Gulf of Venezuela, and E 15 to 25 kt elsewhere. Seas 5 to 7 ft. .FRI...E winds 15 to 25 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft. .SAT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt elsewhere. Seas 3 to 5 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. .SUN NIGHT...E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. .MON...E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. 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. .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...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .MON...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 15 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 20 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. .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. .SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .MON...E winds 10 to 20 kt. Seas 4 to 5 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Tropical Storm Idalia is near 33.6N 78.0W at 5 AM EDT, and is moving east-northeast at 18 kt. Maximum sustained winds are 50 kt with gusts to 60 kt, and the minimum central pressure is 991 mb. Idalia will move to 34.0N 75.1W this afternoon, 33.5N 71.7W Fri morning, 32.4N 69.1W Fri afternoon, 31.5N 68.0W Sat morning, 31.2N 67.5W Sat afternoon, and 31.4N 66.6W Sun morning. Idalia will change little in intensity as it moves near 33.1N 63.8W by early Mon. Meanwhile, Hurricane Franklin is near 34.9N 63.2W at 5 AM EDT, and is moving east- northeast at 13 kt. Maximum sustained winds are 85 kt with gusts to 105 kt, and the minimum central pressure is 965 mb. Moderate to fresh winds and rough seas associated with outer southern periphery of Franklin will impact the northern waters through tonight. ATLC waters from 27N to 31N W of 77W .TODAY...W winds 20 to 30 kt. Seas 8 to 11 ft. .TONIGHT...NW winds 15 to 25 kt, shifting to N 10 to 15 kt after midnight. Seas 6 to 9 ft. .FRI...NE winds 10 to 15 kt. Seas 6 to 8 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft. .SAT...NE winds 10 to 15 kt. Seas 7 to 9 ft. .SAT NIGHT...NE winds 10 to 20 kt. Seas 7 to 9 ft. .SUN...NE winds 10 to 15 kt. Seas 7 to 9 ft. .SUN NIGHT...NE winds 10 to 15 kt. Seas 7 to 9 ft. .MON...NE winds 10 kt. Seas 7 to 8 ft. ATLC waters from 27N to 31N between 65W and 77W ...TROPICAL STORM WARNING... .TODAY...SW winds 20 to 30 kt W of 70W, and SW 15 to 25 kt elsewhere. Seas 7 to 10 ft W of 70W, and 6 to 8 ft elsewhere. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. W winds 25 to 35 kt. Seas 8 to 11 ft W of 70W, and 5 to 7 ft elsewhere. .FRI...TROPICAL STORM CONDITIONS POSSIBLE. NW winds 20 to 30 kt W of 70W, and SW 25 to 35 kt elsewhere. Seas 8 to 13 ft W of 70W, and 7 to 10 ft elsewhere. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NW winds 20 to 30 kt. Seas 9 to 14 ft W of 70W, and 8 to 11 ft elsewhere. .SAT...NW winds 20 to 30 kt. Seas 9 to 14 ft W of 70W, and 8 to 13 ft elsewhere. .SAT NIGHT...N winds 20 to 30 kt. Seas 8 to 13 ft. .SUN...N winds 15 to 25 kt W of 70W, and W 20 to 30 kt elsewhere. Seas 8 to 12 ft. .SUN NIGHT...N winds 10 to 20 kt W of 70W, and NW 20 to 30 kt elsewhere. Seas 8 to 12 ft. .MON...NE winds 10 to 20 kt W of 70W, and NW 15 to 25 kt elsewhere. Seas 7 to 10 ft. Bahamas N of 22N .TODAY...S winds 10 to 20 kt. Seas 2 ft or less. .TONIGHT...E winds 10 to 15 kt. Seas 2 ft or less. .FRI...E winds less than 10 kt, shifting to NE in the afternoon. Seas 2 ft or less. .FRI NIGHT...NE winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft after midnight. .SAT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...NE 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, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .TODAY...S winds 10 to 20 kt. Seas 3 to 5 ft. .TONIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...SW winds 10 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...W winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...NW winds 10 to 20 kt W of 70W, and SW 15 to 25 kt elsewhere. Seas 6 to 8 ft. .SAT NIGHT...NW winds 10 to 20 kt W of 70W, and SW 15 to 25 kt elsewhere. Seas 6 to 8 ft. .SUN...NW winds 10 to 20 kt W of 70W, and SW 15 to 25 kt elsewhere. Seas 6 to 8 ft. .SUN NIGHT...N winds 10 to 15 kt W of 70W, and W 15 to 25 kt elsewhere. Seas 6 to 8 ft. .MON...N winds less than 10 kt W of 70W, and W 10 to 20 kt elsewhere. Seas 6 to 7 ft. ATLC waters S of 22N W of 65W .TODAY...SE winds 10 to 20 kt. Seas 3 to 5 ft. .TONIGHT...E winds 10 to 20 kt. Seas 3 to 5 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...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds 10 to 15 kt, shifting to SE after midnight. Seas 3 to 5 ft. .SUN...SE winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft. .SUN NIGHT...SE winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 5 ft. .MON...SE winds 10 to 15 kt. Seas 3 to 5 ft. ATLC waters from 19N to 22N between 55W and 65W .TODAY...E winds less than 10 kt. Seas 4 to 5 ft. .TONIGHT...E winds less than 10 kt. Seas 4 ft. .FRI...E winds less than 10 kt. Seas 4 ft. .FRI NIGHT...E winds less than 10 kt. Seas 4 ft. .SAT...SE winds less than 10 kt. Seas 4 ft. .SAT NIGHT...SE winds less than 10 kt. Seas 4 to 5 ft. .SUN...S winds less than 10 kt. Seas 4 to 5 ft. .SUN NIGHT...S winds less than 10 kt. Seas 5 to 6 ft. .MON...S winds less than 10 kt. Seas 5 to 6 ft.