000 FZNT31 KNHC 190316 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1116 PM EDT Wed Aug 18 2021 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 Grace near 19.8N 85.6W 988 mb at 11 PM EDT moving W at 16 kt. Maximum sustained winds 70 kt gusts 85 kt. Grace will move inland to 20.3N 88.1W Thu morning, weaken to a tropical storm near 20.6N 91.4W Thu evening, strengthen to a hurricane near 20.7N 94.0W Fri morning, 20.5N 96.1W Fri evening, move inland and weaken to a tropical storm near 20.0N 98.8W Sat morning, and move inland and weaken to a tropical depression near 19.7N 101.6W Sat evening. Grace will dissipate late Sun. Elsewhere, fresh to strong trades will be over the central Caribbean through early Thu. NW Caribbean W of 85W ...HURRICANE WARNING... .OVERNIGHT...HURRICANE CONDITIONS. SE winds 55 to 65 kt. Seas 9 to 21 ft. .THU...TROPICAL STORM CONDITIONS EXPECTED. SE winds 55 to 65 kt, diminishing to 20 to 30 kt in the afternoon. Seas 9 to 14 ft. .THU NIGHT...SE winds 15 to 25 kt. Seas 6 to 8 ft. .FRI...SE winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 15 to 25 kt. Seas 4 to 6 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...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 15 to 25 kt. Seas 3 to 5 ft. .MON...E winds 10 to 20 kt. Seas 4 to 5 ft. Caribbean N of 15N between 72W and 85W ...TROPICAL STORM WARNING... .OVERNIGHT...TROPICAL STORM CONDITIONS. E winds 10 to 20 kt S of 18N, and SE 40 to 50 kt elsewhere. Seas 5 to 7 ft S of 18N, and 8 to 13 ft elsewhere. .THU...E winds 10 to 20 kt S of 18N, and E 20 to 30 kt elsewhere. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft S of 18N, and 3 to 4 ft elsewhere. .SAT...E winds 15 to 25 kt S of 18N, and E 10 to 20 kt elsewhere. Seas 4 to 6 ft S of 18N, and 3 ft elsewhere. .SAT NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 15 to 25 kt S of 18N, and E 10 to 20 kt elsewhere. Seas 4 to 6 ft. .MON...E winds 15 to 25 kt S of 18N, and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. Caribbean from 11N to 15N W of 72W .OVERNIGHT...E winds 15 to 25 kt within 90 nm of coast of Colombia, and E 10 to 20 kt elsewhere. Seas 6 to 7 ft within 90 nm of coast of Colombia, and 3 to 5 ft elsewhere. .THU...E winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 20 kt. Seas 3 to 5 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...E winds 10 to 20 kt. Seas 5 to 7 ft. SW Caribbean S of 11N .OVERNIGHT...Variable winds less than 10 kt. Seas 3 ft. .THU...Variable winds less than 10 kt, becoming SW less than 10 kt in the afternoon. Seas 3 to 5 ft. .THU NIGHT...W winds less than 10 kt. Seas 3 to 5 ft. .FRI...W winds less than 10 kt. Seas 3 to 5 ft. .FRI NIGHT...SW winds less than 10 kt. Seas 3 to 5 ft. .SAT...S winds less than 10 kt. Seas 3 to 4 ft. .SAT NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. .MON...N winds less than 10 kt. Seas 3 to 5 ft. Caribbean between 64W and 72W .OVERNIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .THU...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .FRI NIGHT...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .SAT...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .SAT NIGHT...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .SUN...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .SUN NIGHT...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. .MON...E winds 10 to 20 kt Gulf of Venezuela, and E 15 to 25 kt elsewhere. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .OVERNIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .THU...E winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SUN...E winds 10 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .MON...E winds 10 to 20 kt. Seas 6 to 8 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W .OVERNIGHT...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 15 kt. Seas 3 to 5 ft. .SAT...E winds 10 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...E winds 10 to 20 kt. Seas 5 to 7 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .MON...E winds 10 to 20 kt. Seas 5 to 7 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Tropical Storm Henri near 29.8N 68.5W 995 mb at 11 PM EDT moving W at 8 kt. Maximum sustained winds 60 kt gusts 75 kt. Henri will move to 29.8N 69.9W Thu morning, 30.0N 71.8W Thu evening, strengthen to a hurricane near 30.7N 72.7W Fri morning, 32.3N 72.8W Fri evening, 34.4N 71.8W Sat morning, and 36.9N 70.7W Sat evening. Henri will change little in intensity as it moves near 40.4N 69.4W late Sun. Elsewhere, high pressure will persist across the forecast waters through the period. Fresh east to southeast winds over the far southwest part of the area will shift W to the Straits of Florida tonight. ATLC waters from 27N to 31N W of 77W .OVERNIGHT...SE winds less than 10 kt. Seas 3 ft. .THU...E winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 3 to 4 ft. .THU NIGHT...NW winds less than 10 kt. Seas 3 to 4 ft. .FRI...W winds less than 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft. .FRI NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...SW winds 10 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...S winds 10 to 20 kt. Seas 3 to 4 ft. .SUN...S winds 10 to 20 kt. Seas 3 to 4 ft. .SUN NIGHT...S winds 10 to 20 kt. Seas 3 to 4 ft. .MON...S winds 15 to 25 kt. Seas 3 to 4 ft. ATLC waters from 27N to 31N between 65W and 77W ...TROPICAL STORM WARNING... .OVERNIGHT...TROPICAL STORM CONDITIONS. N winds 20 to 30 kt W of 70W, and S 45 to 55 kt elsewhere. Seas 4 to 6 ft W of 70W, and 8 to 11 ft elsewhere. .THU...TROPICAL STORM CONDITIONS EXPECTED. N winds 45 to 55 kt, shifting to SW in the afternoon. Seas 5 to 7 ft W of 70W, and 7 to 10 ft elsewhere. .THU NIGHT...TROPICAL STORM CONDITIONS EXPECTED. NW winds 45 to 60 kt W of 70W, and S 20 to 30 kt elsewhere. Seas 7 to 10 ft W of 70W, and 5 to 7 ft elsewhere. .FRI...TROPICAL STORM CONDITIONS EXPECTED. SW winds 50 to 65 kt W of 70W, and S 15 to 25 kt elsewhere. Seas 6 to 9 ft W of 70W, and 4 to 6 ft elsewhere. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. SW winds 25 to 35 kt W of 70W, and S 15 to 25 kt elsewhere. Seas 5 to 7 ft. .SAT...S winds 15 to 25 kt W of 70W, and S 10 to 20 kt elsewhere. Seas 4 to 6 ft. .SAT NIGHT...S winds 10 to 20 kt. Seas 3 to 5 ft. .SUN...S winds 10 to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...S winds 10 to 20 kt. Seas 4 to 5 ft. .MON...S winds 15 to 25 kt W of 70W, and SE 10 to 15 kt elsewhere. Seas 4 to 5 ft. Bahamas N of 22N .OVERNIGHT...E winds 10 to 15 kt. Seas 2 ft or less. .THU...E winds 10 to 15 kt. Seas 2 ft or less. .THU NIGHT...E winds 10 to 15 kt. Seas 2 ft or less. .FRI...E winds 10 to 15 kt. Seas 2 ft or less. .FRI NIGHT...SE winds 10 to 20 kt. Seas 2 ft or less. .SAT...SE winds 10 to 20 kt. Seas 2 ft or less, building to 3 ft in the afternoon. .SAT NIGHT...E winds 10 to 20 kt. Seas 2 ft or less. .SUN...SE winds 10 to 20 kt. Seas 3 to 4 ft. .SUN NIGHT...SE winds 10 to 20 kt. Seas 3 to 4 ft. .MON...E winds 10 to 20 kt. Seas 3 to 5 ft. ATLC waters from 22N to 27N between 65W and the Bahamas .OVERNIGHT...W of 70W, NE winds 10 to 15 kt. Elsewhere, SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .THU...SE winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...SE winds 10 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...SE winds 10 to 20 kt. Seas 4 to 5 ft. .SAT...SE winds 10 to 20 kt. Seas 4 to 5 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 5 ft. .SUN...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SUN NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. .MON...E winds 10 to 20 kt. Seas 5 to 7 ft. ATLC waters S of 22N W of 65W .OVERNIGHT...E winds 10 to 20 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 15 to 25 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft. .SUN...E winds 15 to 25 kt. Seas 5 to 7 ft. .SUN NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. .MON...E winds 15 to 25 kt. Seas 6 to 8 ft. ATLC waters from 19N to 22N between 55W and 65W .OVERNIGHT...E winds 10 to 20 kt. Seas 4 to 5 ft. .THU...E winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 5 to 6 ft. .FRI...E winds 15 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 15 to 20 kt. Seas 6 to 7 ft. .SAT...E winds 15 to 20 kt. Seas 5 to 7 ft. .SAT NIGHT...E winds 15 to 20 kt. Seas 6 to 7 ft. .SUN...E winds 15 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft. .MON...E winds 10 to 20 kt. Seas 6 to 8 ft.