000 FZNT32 KNHC 190215 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1015 PM EDT Thu Apr 18 2019 Marine Weather HF Voice Broadcast for the Gulf of Mexico 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 the Gulf of Mexico .SYNOPSIS...A significant cold front will move through the basin through Fri evening with a strong line of convection out ahead of it. The front will reach from SE Louisiana to near Tampico, Mexico late tonight, then from the Florida Big Bend to the eastern Bay of Campeche Fri afternoon, moving SE of the basin Fri evening. Strong to near gale force winds are expected on either side of the front, mainly in the northern, W central, and SW Gulf. High pres will build in from the W in the wake of the front this weekend with return flow expected by early next week. Gulf of Mexico N of 26N W of 87W ...GALE WARNING... .OVERNIGHT...E of front, SE to S winds 15 to 25 kt, except 25 to 35 kt within 90 nm E of front. W of front, W to NW winds 15 to 20 kt, becoming NW 20 to 30 kt with frequent gusts to gale force late. Seas 6 to 9 ft. .FRI...NW winds 20 to 30 kt. Frequent gusts to gale force in the morning. Seas 7 to 10 ft in SE swell. .FRI NIGHT...NW winds 20 to 25 kt. Seas 7 to 10 ft in SE swell. .SAT...NW to N winds 10 to 15 kt W of 90W, and W to NW 15 to 20 kt elsewhere. Seas 6 to 8 ft. .SAT NIGHT...NW to N winds 15 to 20 kt. Seas 2 to 4 ft. .SUN...E to SE winds 10 to 15 kt. Seas 3 ft or less. .SUN NIGHT...SE winds 15 to 20 kt. Seas 2 to 4 ft. .MON...SE winds 15 to 20 kt. Seas 2 to 4 ft. .MON NIGHT...E to SE winds 15 to 20 kt. Seas 3 to 5 ft. .TUE...E to SE winds 15 to 20 kt. Seas 3 to 5 ft. .TUE NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. Gulf of Mexico from 22N to 26N W of 87W ...GALE WARNING... .OVERNIGHT...NW to N winds 15 to 20 kt, increasing to 20 to 30 kt with frequent gusts to gale force late. Seas 6 to 9 ft. .FRI...W of 96W, N winds 20 to 25 kt, diminishing to 10 to 15 kt in the late morning and afternoon. Elsewhere, N winds 20 to 30 kt, diminishing to 15 to 20 kt in the afternoon. Seas 6 to 8 ft. .FRI NIGHT...E to SE winds 10 kt W of 96W, and N to NE 15 to 20 kt elsewhere. Seas 4 to 6 ft. .SAT...W of 96W, SE to S winds 10 to 15 kt. Elsewhere, NE winds 10 kt in the morning, becoming variable less than 5 kt, then, becoming E 10 kt late in the afternoon. Seas 3 to 5 ft. .SAT NIGHT...SE winds 15 to 20 kt. Seas 2 to 4 ft. .SUN...SE winds 15 to 20 kt. Seas 2 to 4 ft. .SUN NIGHT...SE winds 15 to 20 kt. Seas 3 to 5 ft. .MON...SE winds 15 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...SE winds 15 to 20 kt. Seas 4 to 6 ft. .TUE...E to SE winds 15 to 20 kt. Seas 4 to 6 ft. .TUE NIGHT...E to SE winds 15 to 20 kt. Seas 4 to 6 ft. SW Gulf of Mexico S of 22N W of 87W ...GALE WARNING... .OVERNIGHT...S of 21N W of 95W, NW to N winds 25 to 35 kt, shifting to NW 15 to 20 kt late. Elsewhere, N winds 15 to 20 kt. Seas 4 to 7 ft. .FRI...NW to N winds 15 to 20 kt. Seas 4 to 6 ft. .FRI NIGHT...NE to E winds 10 to 15 kt. Seas 4 to 6 ft. .SAT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...E to SE winds 15 to 20 kt. Seas 2 to 4 ft. .SUN...SE winds 15 to 20 kt. Seas 3 to 5 ft. .SUN NIGHT...E to SE winds 15 to 20 kt. Seas 3 to 5 ft. .MON...E to SE winds 15 to 20 kt. Seas 2 to 4 ft. .MON NIGHT...E to SE winds 15 to 20 kt. Seas 3 to 5 ft. .TUE...E to SE winds 15 to 20 kt. Seas 3 to 5 ft. .TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Gulf of Mexico E of 87W ...GALE WARNING... .OVERNIGHT...SE to S winds 15 to 20 kt, becoming S to SW 25 to 35 kt within 90 nm ahead of front late. Seas 4 to 7 ft, building to 6 to 9 ft late. .FRI...S to SW winds 25 to 35 kt, shifting to W to NW behind front. Seas 7 to 10 ft. .FRI NIGHT...W to NW winds 20 to 30 kt. Seas 7 to 11 ft. .SAT...W to NW winds 15 to 20 kt. Seas 6 to 9 ft. .SAT NIGHT...NW winds 15 to 20 kt. Seas 5 to 7 ft. .SUN...N to NE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft, subsiding to 3 ft or less late. .MON...E winds 10 to 15 kt. Seas 3 ft or less. .MON NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. .TUE...E winds 10 to 15 kt. Seas 2 to 4 ft. .TUE NIGHT...E winds 10 kt. Seas 2 to 4 ft.