000 FZNT31 KNHC 172132 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 532 PM EDT Thu Aug 17 2017 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 ATLC from 07N to 19N between 55W and 64W .SYNOPSIS...A strong and broad tropical wave along 70W-71W will reach along 80W Fri afternoon and move across the W Caribbean Fri night through early Sun. Newly formed Tropical Storm Harvey near 13.1N 55.8W moving W at 16 kt at 2100 UTC. Maximum sustained winds 35 kt G 45 kt. Harvey expected to continue westward and across the Windward Islands Fri then move more WNW through the full Caribbean Fri night through Mon while strengthening, then move across the Gulf of Honduras late Mon through Tue. NW Caribbean W of 85W .TONIGHT...NE winds 10 to 20 kt. Seas 3 ft. .FRI...E winds less than 10 kt. Seas 3 ft. .FRI NIGHT...NE winds less than 10 kt. Seas 3 ft. .SAT...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 ft. .SAT NIGHT...NE winds 10 to 15 kt. Seas 3 ft. .SUN...E winds less than 10 kt. Seas 3 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft after midnight. .MON... TROPICAL STORM CONDITIONS POSSIBLE. .MON NIGHT... TROPICAL STORM CONDITIONS POSSIBLE. .TUE...E winds 45 to 55 kt. Seas 8 to 13 ft. Caribbean N of 15N between 72W and 85W .TONIGHT...NE winds 10 to 20 kt S of 18N, and NE 15 to 25 kt elsewhere. 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 3 to 5 ft. .SAT...E winds 10 to 20 kt. Seas 4 to 6 ft S of 18N, and 3 to 4 ft elsewhere. .SAT NIGHT... TROPICAL STORM CONDITIONS POSSIBLE. S of 18N, NE winds 15 to 25 kt, increasing to 25 to 35 kt after midnight. Elsewhere, E winds 15 to 25 kt. Seas 3 to 5 ft. .SUN... TROPICAL STORM CONDITIONS POSSIBLE. .SUN NIGHT... TROPICAL STORM CONDITIONS POSSIBLE. .MON... TROPICAL STORM CONDITIONS POSSIBLE. .MON NIGHT... TROPICAL STORM CONDITIONS POSSIBLE. .TUE...S of 18N, E winds 25 to 35 kt, becoming SE 10 to 20 kt in the afternoon. Elsewhere, SE winds 15 to 25 kt. Seas 4 to 6 ft. Caribbean from 11N to 15N W of 72W .TONIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 4 to 5 ft. .SAT...E winds 10 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT... TROPICAL STORM CONDITIONS POSSIBLE. Within 90 nm of coast of Colombia, NE winds less than 10 kt. Elsewhere, NE winds 15 to 25 kt, increasing to 40 to 50 kt after midnight. Seas 4 to 6 ft. .SUN... TROPICAL STORM CONDITIONS POSSIBLE. .SUN NIGHT... TROPICAL STORM CONDITIONS POSSIBLE. .MON... TROPICAL STORM CONDITIONS POSSIBLE. .MON NIGHT... TROPICAL STORM CONDITIONS POSSIBLE. .TUE...E winds 10 to 20 kt. Seas 3 to 5 ft. SW Caribbean S of 11N .TONIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...NE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 5 ft. .FRI NIGHT...NW winds less than 10 kt, shifting to N after midnight. Seas 3 to 4 ft. .SAT...N winds 10 to 15 kt, shifting to NW in the afternoon. Seas 3 to 4 ft. .SAT NIGHT...NW winds less than 10 kt, shifting to W after midnight. Seas 3 to 4 ft. .SUN...SW winds 10 to 15 kt. Seas 3 to 4 ft. .SUN NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. .MON...W winds less than 10 kt. Seas 3 to 4 ft. .MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft. Caribbean between 64W and 72W ...TROPICAL STORM WARNING... .TONIGHT...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... TROPICAL STORM CONDITIONS EXPECTED. Gulf of Venezuela, NE winds 10 to 20 kt. Elsewhere, NE winds 20 to 30 kt, increasing to 30 to 40 kt after midnight. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .SAT... TROPICAL STORM CONDITIONS POSSIBLE. NE winds 10 to 15 kt Gulf of Venezuela, and E 30 to 40 kt elsewhere. Seas 3 ft Gulf of Venezuela, and 6 to 9 ft elsewhere. .SAT NIGHT... TROPICAL STORM CONDITIONS POSSIBLE. NE winds 10 kt Gulf of Venezuela, and E 40 to 50 kt elsewhere. Seas 3 ft Gulf of Venezuela, and 6 to 9 ft elsewhere. .SUN...NE winds less than 10 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. .SUN NIGHT...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .MON...E winds 10 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 4 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .TONIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft. .FRI...E winds 20 to 30 kt. Seas 7 to 10 ft. .FRI NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft. .SAT...E winds 15 to 25 kt. Seas 6 to 8 ft. .SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 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. .MON NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...SE winds 10 to 15 kt. Seas 4 to 6 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W ...TROPICAL STORM WARNING... .TONIGHT... TROPICAL STORM CONDITIONS POSSIBLE. E winds 25 to 35 kt. Seas 5 to 7 ft. .FRI... TROPICAL STORM CONDITIONS POSSIBLE. SE winds 30 to 40 kt. Seas 5 to 7 ft. .FRI NIGHT... TROPICAL STORM CONDITIONS POSSIBLE. SE winds 30 to 40 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...E winds 10 to 20 kt. Seas 4 to 5 ft. .SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. .MON...SE winds 10 to 20 kt. Seas 3 to 5 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. SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS .SYNOPSIS...The N part of a strong tropical wave along 70W will continue W and reach the Straits of Florida early Sat, accompanied by fresh to locally strong winds and very active weather. Low pressure in the tropical Atlc will pass N of the Leeward Islands late Sat, possibly as a tropical cyclone, and reach the southern Bahamas by early Mon bringing strong winds and building seas to the waters S of 25N. A ridge along 28N will move N of the area early next week. ATLC waters from 27N to 31N W of 77W .TONIGHT...S winds 10 to 15 kt. Seas 3 ft. .FRI...S winds 10 to 15 kt. Seas 3 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...S winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 4 ft. .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. .MON NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...SE winds 10 to 15 kt. Seas 4 to 6 ft. ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W .TONIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...S winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...S winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .MON...W of 70W, SE winds 10 to 15 kt. Elsewhere, E winds 10 to 15 kt, shifting to NE in the afternoon. Seas 4 to 6 ft. .MON NIGHT...E winds 10 to 15 kt W of 70W, and NE less than 10 kt elsewhere. Seas 4 to 6 ft. .TUE...E winds 10 to 15 kt W of 70W, and N less than 10 kt elsewhere. Seas 4 to 6 ft. Bahamas N of 22N .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 4 ft. .SAT...SE winds 10 to 20 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 4 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. .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. ATLC waters from 22N to 27N between 65W and the Bahamas .TONIGHT...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 20 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 15 to 25 kt. Seas 6 to 9 ft. .SUN NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft. .MON...E winds 15 to 25 kt. Seas 6 to 9 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 8 ft. ATLC waters S of 22N W of 65W .TONIGHT...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 5 to 7 ft. .SAT NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. .SUN...E winds 15 to 25 kt. Seas 6 to 8 ft. .SUN NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft. .MON...E winds 15 to 25 kt. Seas 5 to 7 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .TUE...E winds 10 to 20 kt. Seas 5 to 7 ft. ATLC waters from 19N to 22N between 55W and 65W .TONIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft. .FRI...E winds 15 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft. .SAT...E winds 15 to 25 kt. Seas 7 to 10 ft. .SAT NIGHT...E winds 15 to 25 kt. Seas 7 to 9 ft. .SUN...E winds 15 to 25 kt. Seas 7 to 9 ft. .SUN NIGHT...E winds 15 to 25 kt. Seas 7 to 8 ft. .MON...E winds 15 to 25 kt. Seas 6 to 8 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUE...SE winds 10 to 20 kt. Seas 5 to 7 ft.