402 FZNT32 KNHC 190843 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 343 AM EST Sun Jan 19 2025 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...A cold front extends from near Apalachicola, Florida southwestward to 26N91W and to inland Mexico just south of Tampico while a reinforcing cold front extends from near Mobile, Alabama to the NW Gulf. Strong to near gale northerly are over the NW and west-central Gulf sections. In the wake of these fronts, strong high pressure over the central U.S. will continue to build across the basin today, with the resultant tight gradient bringing a brief period of gale force winds this afternoon in the western Gulf waters offshore of Tampico and Veracruz. The reinforcing front will quickly catch up with leading front this morning. The cold front will then reach from central Florida to 24N90W and to near Veracruz by early this afternoon from near western Cuba to the northeast Yucatan Peninsula by late tonight, then push a little more southward early Mon before it stalls. Low pressure is expected to form over the NW Gulf on Mon night, then track southeastward through Wed, dragging a strong cold front across the entire basin. Strong high pressure behind the front will induce gale force north to northeast winds expanding across much of the northern and western Gulf Tue and Tue night, with the potential for gusts to storm force across portions of the central Gulf. Mariners are urged to exercise extreme caution across the basin, due to the expansive area of gale force winds and a large area of very rough to high seas that is expected to accompany this next frontal system. Gulf of Mexico N of 26N W of 87W ...GALE CONDITIONS POSSIBLE TUE INTO TUE NIGHT... .TODAY...N winds 15 to 25 kt, except W of 94W N winds 20 to 30 kt diminsihing to 15 to 25 kt in the afternoon. Seas 8 to 12 ft. .TONIGHT...NE winds 15 to 25 kt. Seas 7 to 10 ft. .MON...NE winds 15 to 20 kt. Seas 6 to 8 ft. .MON NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft. .TUE...NE winds 25 to 35 kt. Seas 8 to 12 ft, building to 10 to 16 ft in the afternoon. .TUE NIGHT...N winds 25 to 35 kt between 87W and 94W, and N to NE winds 25 to 30 kt with frequent gusts to 35 kt W of 94W. Seas 12 to 19 ft. .WED...NE winds 15 to 25 kt. Seas 9 to 14 ft. .WED NIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft. .THU...N winds 10 to 15 kt. Seas 4 to 6 ft. .THU NIGHT...N winds 15 to 20 kt. Seas 3 to 5 ft. Gulf of Mexico from 22N to 26N W of 87W ...GALE WARNING W OF 96W... ...GALE CONDITIONS POSSIBLE TUE AND TUE NIGHT... .TODAY...N winds 20 to 30 kt, except W of 96W N winds 30 to 35 kt. Seas 7 to 10 ft between 87W and 94W, and 8 to 12 ft W of 94W. .TONIGHT...NE winds 15 to 25 kt. Seas 8 to 11 ft. .MON...NE winds 10 to 20 kt. Seas 7 to 10 ft. .MON NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft. .TUE...E winds 15 to 25 kt, increasing to 35 to 40 kt in the afternoon. Seas 7 to 10 ft, except between 91W and 94W building to 10 to 15 ft in the afternoon. .TUE NIGHT...N winds 25 to 35 kt. Seas 12 to 17 ft. .WED...N winds 15 to 25 kt. Seas 13 to 18 ft, subsiding to 10 to 15 ft in the afternoon. .WED NIGHT...NE winds 10 to 20 kt. Seas 8 to 11 ft. .THU...N winds 10 to 15 kt. Seas 6 to 8 ft. .THU NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. SW Gulf of Mexico S of 22N W of 87W ...GALE WARNING S OF 20N W OF 95W... ...GALE CONDITIONS POSSIBLE TUE NIGHT... .TODAY...S of 20N W of 95W, N winds 20 to 30 kt increasing to 30 to 35 kt in the afternoon. seas 4 to 6 ft building to 7 to 10 ft in the afternoon, except S of 20N W of 95W building 8 to 12 ft in the afternoon. Elsewhere, W winds 10 to 15 kt, becoming N 20 to 30 kt in the afternoon. Seas 5 to 7 ft, building to 7 to 10 ft in the afternoon. .TONIGHT...N winds 25 to 30 kt diminishing to 15 to 20 kt late, except S of 20N W of 95W except S of 20N W of 95W N 30 to 35 kt diminishing to 20 to 25 kt late. Seas 8 to 12 ft. .MON...NE winds 10 to 20 kt. Seas 7 to 10 ft. .MON NIGHT...Within 60 nm of coast of Veracruz, NW winds 10 to 15 kt. Elsewhere, E winds 10 to 20 kt. Seas 6 to 9 ft. .TUE...E winds 10 to 15 kt, becoming NW 15 to 25 kt in the afternoon. Seas 6 to 9 ft. .TUE NIGHT...N winds 25 to 35 kt, except W of 94W NW to N 30 to 40 kt. Seas 8 to 13 ft building to 11 to 16 ft late, except 12 to 19 ft S of 20N W of 95W and 14 to 22 ft elsewhere. .WED...N winds 20 to 30 kt. Seas 13 to 18 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 9 to 14 ft, subsiding to 7 to 10 ft late. .THU...N winds 10 to 15 kt. Seas 6 to 9 ft. .THU NIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. Gulf of Mexico E of 87W .TODAY...W winds 15 to 25 kt. Seas 5 to 7 ft. .TONIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. .MON...NE winds 15 to 25 kt. Seas 7 to 10 ft. .MON NIGHT...NE winds 15 to 25 kt. Seas 7 to 10 ft. .TUE...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUE NIGHT...E winds 15 to 25 kt, becoming N 20 to 30 kt late. Seas 6 to 8 ft, building to 8 to 11 ft late. .WED...NE winds 15 to 25 kt. Seas 9 to 14 ft. .WED NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. .THU...NE winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft.