000 FZNT31 KNHC 300909 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 509 AM EDT Thu Jul 30 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...Tropical Storm Isaias near 17.2N 67.9W 1003 mb at 5 AM EDT moving NW at 18 kt. Maximum sustained winds 50 kt gusts 60 kt. Isaias will move inland to 18.8N 70.2W this afternoon, 20.6N 72.9W Fri morning, 22.3N 75.5W Fri afternoon, 24.0N 77.9W Sat morning, 25.5N 79.2W Sat afternoon, and 27.3N 80.0W Sun morning. Tropical storm conditions will continue in the Virgin Islands and Puerto Rico early this morning, then reach portions of the Dominican Republic and Haiti later today. NW Caribbean W of 85W .TODAY...E winds 10 to 20 kt. Seas 3 to 5 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...NE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...NE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...NE winds less than 10 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds less than 10 kt. Seas 2 to 3 ft. .MON...E winds less than 10 kt. Seas 2 ft or less. Caribbean N of 15N between 72W and 85W ...TROPICAL STORM WARNING... .TODAY...N winds 15 to 25 kt S of 18N, and NE 20 to 30 kt elsewhere. Seas 4 to 6 ft. .TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 15 to 25 kt S of 18N, and NE 25 to 35 kt elsewhere. Seas 5 to 7 ft. .FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 3 to 6 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 3 to 5 ft. Caribbean from 11N to 15N W of 72W .TODAY...NE winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...NE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .MON...E winds 10 to 20 kt. Seas 4 to 6 ft. SW Caribbean S of 11N .TODAY...NE winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...NW winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...N winds less than 10 kt. Seas 3 to 5 ft. .SAT...NE winds less than 10 kt. Seas 3 to 5 ft. .SAT NIGHT...N winds less than 10 kt. Seas 3 to 4 ft. .SUN...N winds less than 10 kt. Seas 3 to 4 ft. .SUN NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. .MON...NE winds 10 to 15 kt. Seas 3 to 4 ft. Caribbean between 64W and 72W ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS. Gulf of Venezuela, E winds 10 kt. Seas 2 to 3 ft. Elsewhere, SE winds 30 to 50 kt. Seas 7 to 10 ft. .TONIGHT...Gulf of Venezuela, NE winds 10 to 15 kt. Elsewhere, SE winds 15 to 25 kt. Seas 3 to 4 ft Gulf of Venezuela, and 6 to 9 ft elsewhere. .FRI...S winds 10 to 15 kt Gulf of Venezuela, and SE 15 to 25 kt elsewhere. Seas 3 ft Gulf of Venezuela, and 6 to 9 ft elsewhere. .FRI NIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 15 to 25 kt elsewhere. Seas 4 to 7 ft. .SAT...E winds 10 to 20 kt. Seas 4 to 7 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .MON...SE 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 20 to 30 kt. Seas 7 to 10 ft. .TONIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 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 15 to 25 kt. Seas 6 to 8 ft. .TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .MON...E winds 10 to 15 kt. Seas 3 to 5 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Tropical Storm Isaias near 17.2N 67.9W 1003 mb at 5 AM EDT moving NW at 18 kt. Maximum sustained winds 50 kt gusts 60 kt. Isaias will move inland to 18.8N 70.2W this afternoon, 20.6N 72.9W Fri morning, 22.3N 75.5W Fri afternoon, 24.0N 77.9W Sat morning, 25.5N 79.2W Sat afternoon, and 27.3N 80.0W Sun morning. Gale force winds extend more than 400 nm north and northeast of Isaias into the Atlantic. Tropical storm conditions are possible NE of Isaias over a large portion of the SW North Atlantic as the center of Isaias moves from the NE Caribbean across Hispaniola towards southern Florida and the Bahamas. ATLC waters from 27N to 31N W of 77W .TODAY...S winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...S winds 10 to 20 kt. Seas 3 to 5 ft. .FRI...S winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 10 to 20 kt. Seas 8 to 11 ft. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 15 to 25 kt, increasing to 25 to 35 kt in the afternoon. Seas 8 to 12 ft. .SAT NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SUN...TROPICAL STORM CONDITIONS POSSIBLE. .SUN NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .MON...TROPICAL STORM CONDITIONS POSSIBLE. ATLC waters from 27N to 31N between 65W and 77W .TODAY...SE winds 10 to 15 kt. Seas 5 to 7 ft. .TONIGHT...SE winds 10 to 20 kt. Seas 6 to 8 ft. .FRI...SE winds 10 to 20 kt. Seas 6 to 10 ft. .FRI NIGHT...SE winds 15 to 25 kt W of 70W, and SE 10 to 15 kt elsewhere. Seas 8 to 11 ft W of 70W, and 5 to 7 ft elsewhere. .SAT...SE winds 20 to 30 kt W of 70W, and SE 10 to 20 kt elsewhere. Seas 7 to 10 ft W of 70W, and 5 to 6 ft elsewhere. .SAT NIGHT...SE winds 15 to 25 kt W of 70W, and SE 10 to 15 kt elsewhere. Seas 7 to 10 ft W of 70W, and 5 to 6 ft elsewhere. .SUN...SE winds 10 to 20 kt. Seas 6 to 9 ft W of 70W, and 5 to 6 ft elsewhere. .SUN NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .MON...TROPICAL STORM CONDITIONS POSSIBLE. Bahamas N of 22N ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS POSSIBLE. E winds 20 to 30 kt. Seas 3 to 5 ft. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. E winds 30 to 40 kt. Seas 5 to 7 ft, building to 7 to 10 ft late. .FRI...TROPICAL STORM CONDITIONS EXPECTED. E winds 40 to 50 kt. Seas 8 to 11 ft. .FRI NIGHT...TROPICAL STORM CONDITIONS EXPECTED. E winds 45 to 55 kt. Seas 8 to 11 ft. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 45 to 55 kt. Seas 6 to 8 ft. .SAT NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SUN...TROPICAL STORM CONDITIONS POSSIBLE. .SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .MON...SE winds 10 to 15 kt. Seas 3 to 4 ft. ATLC waters from 22N to 27N between 65W and the Bahamas ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS EXPECTED. E winds 25 to 35 kt. W of 70W, seas 7 to 10 ft, building to 8 to 13 ft in the afternoon. Elsewhere, seas 11 to 16 ft. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. E winds 30 to 40 kt W of 70W, and E 25 to 35 kt elsewhere. W of 70W, seas 10 to 15 ft, building to 13 to 18 ft late. Elsewhere, seas 10 to 15 ft. .FRI...TROPICAL STORM CONDITIONS EXPECTED. E winds 25 to 35 kt W of 70W, and E 20 to 30 kt elsewhere. Seas 13 to 18 ft W of 70W, and 8 to 11 ft elsewhere. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 20 to 30 kt W of 70W, and E 10 to 20 kt elsewhere. Seas 10 to 15 ft W of 70W, and 6 to 9 ft elsewhere. .SAT...SE winds 20 to 30 kt W of 70W, and E 10 to 20 kt elsewhere. Seas 8 to 11 ft W of 70W, and 6 to 7 ft elsewhere. .SAT NIGHT...SE winds 15 to 20 kt W of 70W, and E 10 to 15 kt elsewhere. Seas 6 to 8 ft. .SUN...E winds 10 to 20 kt. Seas 6 to 7 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON...SE winds 10 to 15 kt W of 70W, and E 15 to 25 kt elsewhere. Seas 5 to 6 ft W of 70W, and 6 to 9 ft elsewhere. ATLC waters S of 22N W of 65W ...TROPICAL STORM WARNING... .TODAY...TROPICAL STORM CONDITIONS. E winds 35 to 50 kt. Seas 13 to 18 ft. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. E winds 35 to 45 kt. Seas 13 to 18 ft. .FRI...TROPICAL STORM CONDITIONS EXPECTED. SE winds 40 to 50 kt. Seas 9 to 14 ft. .FRI NIGHT...SE winds 15 to 25 kt. Seas 6 to 9 ft. .SAT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .MON...SE winds 10 to 15 kt. Seas 4 to 6 ft. ATLC waters from 19N to 22N between 55W and 65W ...TROPICAL STORM WARNING... .TODAY...E winds 20 to 35 kt. Seas 9 to 14 ft. .TONIGHT...E winds 15 to 20 kt. Seas 7 to 10 ft. .FRI...E winds 15 to 20 kt. Seas 7 to 8 ft. .FRI NIGHT...E winds 15 to 20 kt. Seas 7 ft. .SAT...E winds 10 to 20 kt. Seas 6 to 7 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 6 to 7 ft. .SUN...E winds 15 to 25 kt. Seas 6 to 8 ft. .SUN NIGHT...SE winds 10 to 20 kt. Seas 6 to 8 ft. .MON...SE winds 10 to 20 kt. Seas 6 to 8 ft.