000 FZNT31 KNHC 281559 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1159 AM EDT Tue Jul 28 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...Fresh to strong trade winds will prevail over Colombia adjacent waters and in the Gulf of Honduras through Wed night. Potential Tropical Cyclone Nine near 13.8N 53.7W 1007 mb at 1500 UTC moving W or 280 deg at 20 kt. Maximum sustained winds 35 kt gusts to 45 kt. Strong winds and building seas associated with this system are already affecting the tropical Atlantic waters and will begin to affect the Leeward and Virgin Islands tonight. These conditions will shift to Puerto Rico and the Mona Passage early on Wed and continue through Thu evening. Fresh to strong NE winds are expected Wed night through Thu night across the Windward Passage and Cuba adjacent waters. NW Caribbean W of 85W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 4 to 5 ft. .TONIGHT...E winds 15 to 25 kt. Seas 4 to 5 ft. .WED...E winds 10 to 20 kt. Seas 4 to 5 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 4 to 5 ft. .THU...E winds 10 to 20 kt. Seas 3 to 5 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...NE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Caribbean N of 15N between 72W and 85W .THIS AFTERNOON...E winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...E winds 15 to 25 kt S of 18N, and E 10 to 20 kt elsewhere. Seas 4 to 6 ft. .WED...E winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...E winds 10 to 20 kt S of 18N, and NE 15 to 25 kt elsewhere. Seas 4 to 6 ft. .THU...NE winds 10 to 20 kt S of 18N, and NE 15 to 25 kt elsewhere. Seas 4 to 6 ft. .THU NIGHT...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 4 to 6 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. Caribbean from 11N to 15N W of 72W .THIS AFTERNOON...E winds 15 to 25 kt. Seas 5 to 7 ft. .TONIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. .WED...E winds 15 to 25 kt. Seas 5 to 7 ft. .WED NIGHT...E winds 15 to 25 kt within 90 nm of coast of Colombia, and NE 15 to 25 kt elsewhere. Seas 5 to 7 ft. .THU...E winds 10 to 20 kt within 90 nm of coast of Colombia, and NE 15 to 25 kt elsewhere. Seas 5 to 7 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...NE winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 20 kt. Seas 4 to 6 ft. SW Caribbean S of 11N .THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 6 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .WED...NE winds 10 to 20 kt. Seas 4 to 6 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. .THU...NE winds 10 to 20 kt. Seas 4 to 6 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...N 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. Caribbean between 64W and 72W ...TROPICAL STORM WARNING... .THIS AFTERNOON...E winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 4 to 6 ft elsewhere. .TONIGHT...E winds 15 to 25 kt. Seas 3 to 4 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .WED...TROPICAL STORM CONDITIONS POSSIBLE. Gulf of Venezuela, NE winds 10 to 15 kt. Elsewhere, E winds 10 to 20 kt, becoming NE 25 to 35 kt in the afternoon. Seas 3 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .WED NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. Gulf of Venezuela, NE winds 10 to 20 kt. Elsewhere, NE winds 25 to 35 kt, becoming E 15 to 25 kt after midnight. Seas 3 to 4 ft Gulf of Venezuela, and 6 to 8 ft elsewhere. .THU...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 10 to 15 kt Gulf of Venezuela, and SE 15 to 25 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 6 to 8 ft elsewhere. .THU NIGHT...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .FRI...Gulf of Venezuela, SE winds less than 10 kt, shifting to NW in the afternoon. Elsewhere, SE winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 5 to 7 ft elsewhere. .FRI 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. .SAT...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W ...TROPICAL STORM WARNING... .THIS AFTERNOON...TROPICAL STORM CONDITIONS EXPECTED. NE winds 25 to 35 kt. Seas 7 to 10 ft. .TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. NE winds 25 to 35 kt. Seas 8 to 13 ft. .WED...TROPICAL STORM CONDITIONS EXPECTED. E winds 30 to 40 kt. Seas 9 to 14 ft. .WED NIGHT...TROPICAL STORM CONDITIONS EXPECTED. SE winds 35 to 45 kt. Seas 9 to 14 ft. .THU...E winds 15 to 25 kt. Seas 7 to 10 ft. .THU NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI...E winds 10 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 5 ft. Offshore Windward Islands and adjacent ATLC waters from 07N to 15N W of 55W ...TROPICAL STORM WARNING... .THIS AFTERNOON...TROPICAL STORM CONDITIONS POSSIBLE. E winds 10 to 20 kt, becoming NE 25 to 35 kt in the afternoon. Seas 5 to 7 ft. .TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E winds 25 to 35 kt, becoming SE 15 to 25 kt after midnight. Seas 6 to 9 ft. .WED...SE winds 15 to 25 kt. Seas 6 to 9 ft. .WED NIGHT...SE winds 10 to 20 kt. Seas 6 to 9 ft. .THU...E winds 10 to 20 kt. Seas 5 to 7 ft. .THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...E winds 10 to 15 kt. Seas 3 to 5 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...Fresh winds are expected south of 25N trough tonight, increasing to strong north of Hispaniola. Potential Tropical Cyclone Nine near 13.8N 53.7W 1007 mb at 1500 UTC moving W or 280 deg at 20 kt. Maximum sustained winds 35 kt gusts to 45 kt. Strong winds and building seas associated with this system will begin to affect the Leeward and adjacent Atlantic waters tonight. These conditions will shift westward across the Virgin Isands, Puerto Rico and the Mona Passage early on Wed and continue through Thu evening. Heavy showers and tstms are expected the affect the Bahamas, Turk and Caicos, and the Greater Antilles adjacent waters during that period. ATLC waters from 27N to 31N W of 77W .THIS AFTERNOON...SW winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. .WED...SW winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .THU...S winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...S winds 10 to 20 kt. Seas 3 to 4 ft. .FRI...S winds 10 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 10 to 15 kt. Seas 6 to 8 ft. ATLC waters from 27N to 31N between 65W and 77W .THIS AFTERNOON...S winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .WED...SE winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .THU...SE winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. .FRI...SE winds 10 to 15 kt. Seas 6 to 9 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 6 to 9 ft. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. S winds 10 to 15 kt. Seas 6 to 9 ft W of 70W, and 5 to 6 ft elsewhere. Bahamas N of 22N .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 ft. .TONIGHT...E winds 10 to 20 kt. Seas 3 ft. .WED...E winds 10 to 20 kt. Seas 3 ft. .WED NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. .THU...TROPICAL STORM CONDITIONS POSSIBLE. E winds 15 to 25 kt. Seas 3 to 4 ft. .THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .FRI...TROPICAL STORM CONDITIONS POSSIBLE. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. ATLC waters from 22N to 27N between 65W and the Bahamas ...TROPICAL STORM WARNING... .THIS AFTERNOON...E winds 10 to 15 kt. Seas 4 to 5 ft. .TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .WED...E winds 10 to 20 kt W of 70W, and E 15 to 25 kt elsewhere. Seas 5 to 7 ft. .WED NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft W of 70W, and 7 to 10 ft elsewhere. .THU...TROPICAL STORM CONDITIONS POSSIBLE. E winds 20 to 30 kt W of 70W, and E 25 to 35 kt elsewhere. W of 70W, seas 6 to 9 ft. Elsewhere, seas 8 to 11 ft, building to 9 to 14 ft in the afternoon. .THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .FRI...TROPICAL STORM CONDITIONS POSSIBLE. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. ATLC waters S of 22N W of 65W ...TROPICAL STORM WARNING... .THIS AFTERNOON...E winds 10 to 20 kt. Seas 4 to 6 ft. .TONIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. .WED...E winds 20 to 30 kt. Seas 6 to 8 ft. .WED NIGHT...TROPICAL STORM CONDITIONS EXPECTED. E winds 30 to 40 kt. Seas 7 to 10 ft, building to 8 to 13 ft after midnight. .THU...TROPICAL STORM CONDITIONS POSSIBLE. E winds 40 to 50 kt. Seas 9 to 14 ft. .THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .FRI...TROPICAL STORM CONDITIONS POSSIBLE. .FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .SAT...TROPICAL STORM CONDITIONS POSSIBLE. ATLC waters from 19N to 22N between 55W and 65W ...TROPICAL STORM WARNING... .THIS AFTERNOON...E winds 15 to 25 kt. Seas 6 to 9 ft. .TONIGHT...E winds 20 to 30 kt. Seas 7 to 10 ft, building to 8 to 13 ft after midnight. .WED...TROPICAL STORM CONDITIONS EXPECTED. E winds 25 to 35 kt. Seas 10 to 15 ft. .WED NIGHT...TROPICAL STORM CONDITIONS EXPECTED. E winds 25 to 35 kt. Seas 10 to 15 ft. .THU...TROPICAL STORM CONDITIONS POSSIBLE. E winds 20 to 30 kt. Seas 9 to 14 ft. .THU NIGHT...E winds 15 to 20 kt. Seas 7 to 10 ft. .FRI...E winds 10 to 20 kt. Seas 6 to 8 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. .SAT...E winds 10 to 15 kt. Seas 5 to 6 ft.