Offshore Forecast
Issued by NWS
Issued by NWS
763 FZNT31 KNHC 070320 OFFN20 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1115 PM EDT Thu Jun 6 2024 Marine Weather HF Voice Broadcast for the Tropical N Atlantic from 07N to 19N W of 55W, the N Atlantic from 19N to 31N W of 55W including the 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 W of 55W .SYNOPSIS...A deep layered upper-level trough from the W Atlantic to Puerto Rico will shift E-NE across the Atlantic, with associated showers and thunderstorms shifting from the north- central basin across the NE Caribbean and into the Atlantic through tonight. A second upper trough from Florida to the NW Caribbean will support active thunderstorms across the NW basin through the weekend. A center of high pressure located SE of Bermuda with associated ridge extending across the E Caribbean will continue to support fresh to locally strong trade winds over the SE basin through Fri. These winds will gradually shift across the south-central Caribbean through the weekend as high pressure continues to build across the western Atlantic. NW Caribbean W of 85W .OVERNIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...SE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. 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, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .MON...SE winds 10 to 15 kt. Seas 3 to 5 ft. .MON NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...SE winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. Caribbean N of 15N between 72W and 85W .OVERNIGHT...S of 18N, SE 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. .FRI...SE winds 10 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 15 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...SE winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...SE winds 10 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. Caribbean from 11N to 15N W of 72W .OVERNIGHT...E winds 10 to 15 kt within 90 nm of coast of Colombia, and SE less than 10 kt elsewhere. Seas 3 to 5 ft. .FRI...Within 90 nm of coast of Colombia, SE winds 10 to 15 kt. Elsewhere, E winds less than 10 kt, shifting to SE in the afternoon. Seas 3 to 5 ft. .FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...SE winds 10 to 15 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. .MON NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...SE winds 10 to 20 kt. Seas 5 to 7 ft. .TUE NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. SW Caribbean S of 11N .OVERNIGHT...S winds less than 10 kt. Seas 2 ft or less. .FRI...S winds less than 10 kt in the morning, becoming variable winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. .SAT...Variable winds less than 10 kt, becoming S less than 10 kt in the afternoon. Seas 2 ft or less. .SAT NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. .SUN...Variable winds less than 10 kt, becoming S less than 10 kt in the afternoon. Seas 3 ft. .SUN NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. .MON...Variable winds less than 10 kt. Seas 3 to 4 ft. .MON NIGHT...Variable winds less than 10 kt, becoming S less than 10 kt after midnight. Seas 3 to 4 ft. .TUE...SE winds less than 10 kt. Seas 3 ft. .TUE NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. Caribbean between 64W and 72W .OVERNIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela, and 4 to 6 ft elsewhere. .FRI...Gulf of Venezuela, E winds 10 to 20 kt, becoming NE less than 10 kt in the afternoon. Elsewhere, SE winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .FRI NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela, and 5 to 7 ft elsewhere. .SAT...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela, and 6 to 8 ft elsewhere. .SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. .SUN...E winds 10 to 20 kt. Seas 5 to 7 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. .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. .TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. Offshore Leeward Islands and adjacent ATLC waters from 15N to 19N W of 55W .OVERNIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. .FRI...SE winds 10 to 15 kt. Seas 3 to 5 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. .SAT NIGHT...E 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 4 to 6 ft. .MON...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...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 .OVERNIGHT...E winds 10 to 15 kt. Seas 3 to 5 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...E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .SUN...E winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON...E winds 10 to 15 kt. Seas 4 to 6 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...E winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Synopsis for the the SW N Atlantic including the Bahamas .SYNOPSIS...A deep-layered upper trough across the W Atlantic extending from near Bermuda to Puerto Rico will shift E-NE across the region through Fri, maintaining active thunderstorms E of the upper trough. A second upper trough from Florida to the NW Caribbean will support active thunderstorms from central Cuba northeastward across the Bahamas and adjacent Atlantic S of 25N through Fri, then shift slowly eastward over the weekend. Weak high pressure will begin to build across the basin tonight, then shift slowly E-NE through the weekend. A weak front will move into the far NW waters Sat and stall there then lift north of the area Sun. ATLC waters from 27N to 31N W of 77W .OVERNIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .FRI...SW winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...SW winds less than 10 kt, shifting to S after midnight. Seas 3 to 4 ft. .SAT...SW winds less than 10 kt. Seas 3 ft. .SAT NIGHT...S winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 ft. .SUN...SW winds less than 10 kt. Seas 3 ft. .SUN NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. .MON...SW winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...SW winds 10 to 20 kt. Seas 3 to 5 ft. .TUE...SW winds 10 to 20 kt. Seas 3 to 5 ft. .TUE NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. ATLC waters from 27N to 31N between 65W and 77W .OVERNIGHT...S winds 10 kt. Seas 3 to 4 ft. .FRI...S winds 10 kt. Seas 3 to 4 ft. .FRI NIGHT...S winds less than 10 kt. Seas 3 to 4 ft. .SAT...SW winds 10 kt. Seas 3 to 4 ft. .SAT NIGHT...SW winds 10 kt. Seas 3 to 4 ft. .SUN...SW winds 10 kt. Seas 3 to 4 ft. .SUN NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. .MON...SW winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...SW winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT...SW winds 10 to 15 kt, diminishing to less than 10 kt after midnight. Seas 3 to 5 ft. Bahamas N of 22N .OVERNIGHT...S winds less than 10 kt. Seas 2 ft or less. .FRI...SW winds less than 10 kt. Seas 2 ft or less. .FRI NIGHT...Variable winds less than 10 kt, becoming S less than 10 kt after midnight. Seas 2 ft or less. .SAT...SW winds less than 10 kt. Seas 2 ft or less. .SAT NIGHT...S winds less than 10 kt. Seas 2 ft or less. .SUN...S winds less than 10 kt. Seas 2 ft or less. .SUN NIGHT...S winds less than 10 kt. Seas 2 ft or less. .MON...S winds less than 10 kt. Seas 2 ft or less. .MON NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 ft or less. .TUE...SE winds 10 to 15 kt. Seas 2 ft or less. .TUE NIGHT...SE winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft after midnight. ATLC waters from 22N to 27N between 65W and the Bahamas .OVERNIGHT...SE winds 10 kt. Seas 3 to 4 ft. .FRI...S winds less than 10 kt. Seas 3 to 4 ft. .FRI NIGHT...S winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .SAT...S winds less than 10 kt. Seas 3 to 4 ft. .SAT NIGHT...S winds less than 10 kt. Seas 3 to 4 ft. .SUN...S winds less than 10 kt. Seas 3 to 4 ft. .SUN NIGHT...S winds less than 10 kt. Seas 3 to 4 ft. .MON...S winds less than 10 kt. Seas 3 to 4 ft. .MON NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .TUE...SE winds less than 10 kt. Seas 3 to 4 ft. .TUE NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. ATLC waters S of 22N W of 65W .OVERNIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 ft. .FRI...S winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...SE winds less than 10 kt. Seas 3 ft. .SAT...SE winds 10 to 15 kt. Seas 3 ft. .SAT NIGHT...E winds less than 10 kt. Seas 3 ft. .SUN...SE winds less than 10 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .MON...SE winds 10 to 15 kt. Seas 3 to 4 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .TUE...E winds 10 to 15 kt. Seas 3 to 4 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. ATLC waters from 19N to 22N between 55W and 65W .OVERNIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .FRI...SE winds 10 to 15 kt. Seas 4 ft. .FRI NIGHT...SE winds less than 10 kt. Seas 3 to 4 ft. .SAT...SE winds 10 kt. Seas 3 to 4 ft. .SAT NIGHT...E winds 10 kt. Seas 3 to 4 ft. .SUN...E winds 10 kt. Seas 3 to 4 ft. .SUN NIGHT...E winds 10 kt. Seas 3 to 4 ft. .MON...E winds 10 kt. Seas 3 to 4 ft. .MON NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. .TUE...E winds 10 to 15 kt. Seas 4 to 5 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.