000 FZNT32 KNHC 182124 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 424 PM EST Sat Jan 18 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 has moved into the NW Gulf today and extends from central Louisiana to along the Texas-Mexico border. Northerly winds behind the front will gradually increase tonight, becoming strong by early Sun as the front reaches from the Florida Big Bend to near Veracruz, Mexico. Strong high pressure over the central U.S. will build across the basin behind the progressing front on Sun to produce a brief period of gale force winds Sun afternoon in the western Gulf waters offshore of Tampico and Veracruz. The front is expected to stall across the Yucatan Channel and Straits of Florida on Mon and gradually dissipate through Tue. 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 N to NE winds expanding across much of the northern and western Gulf Tue and Tue night, with the potential for gusts to storm force across central portions. Mariners are urged to exercise extreme caution across the basin, due to the expansive area of gale force winds and large area of seas 15 to 20 ft expected to accompany this next frontal system. Gulf of Mexico N of 26N W of 87W ...GALE CONDITIONS POSSIBLE TUE AND TUE NIGHT... .TONIGHT...NW winds 15 to 25 kt. Seas 6 to 8 ft. .SUN...N winds 20 to 30 kt. Seas 8 to 11 ft. .SUN NIGHT...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 11 ft, building to 10 to 15 ft in the afternoon. .TUE NIGHT...N winds 25 to 35 kt. Seas 12 to 17 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 10 to 15 kt. Seas 4 to 6 ft. Gulf of Mexico from 22N to 26N W of 87W ...GALE WARNING SUN... ...GALE CONDITIONS POSSIBLE TUE AND TUE NIGHT... .TONIGHT...S winds 10 to 20 kt, shifting to NE after midnight. Seas 4 to 6 ft. .SUN...N winds 25 to 35 kt. Seas 7 to 10 ft. .SUN NIGHT...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 10 to 20 kt. Seas 6 to 9 ft. .TUE...E winds 15 to 25 kt, increasing to 25 to 35 kt in the afternoon. Seas 7 to 9 ft, building to 8 to 13 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 11 to 15 ft in the afternoon. .WED NIGHT...NE winds 10 to 15 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 6 to 8 ft. SW Gulf of Mexico S of 22N W of 87W ...GALE WARNING SUN... ...GALE CONDITIONS POSSIBLE TUE NIGHT... .TONIGHT...SE winds less than 10 kt, shifting to S after midnight. Seas 3 to 5 ft. .SUN...Within 60 nm of coast of Veracruz, N winds 25 to 35 kt, seas 4 to 6 ft, building to 7 to 11 ft in the afternoon. Elsewhere, W winds 10 to 15 kt, becoming N 20 to 30 kt in the afternoon,Seas 4 to 6 ft. .SUN NIGHT...Within 60 nm of coast of Veracruz, N winds 20 to 30 kt, diminishing to 10 to 20 kt after midnight. Elsewhere, NE winds 20 to 30 kt. Seas 7 to 10 ft. .MON...NE winds 10 to 20 kt. Seas 7 to 10 ft. .MON NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. .TUE...SE winds 10 to 15 kt, shifting to NW 15 to 25 kt in the afternoon. Seas 5 to 7 ft. .TUE NIGHT...N winds 25 to 35 kt. Seas 8 to 13 ft, building to 11 to 16 ft after midnight. .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 after midnight. .THU...N winds 10 to 15 kt. Seas 6 to 9 ft. .THU NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. Gulf of Mexico E of 87W .TONIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft. .SUN...W winds 15 to 25 kt. Seas 5 to 7 ft. .SUN NIGHT...N winds 15 to 25 kt. Seas 6 to 9 ft. .MON...NE winds 15 to 25 kt. Seas 7 to 10 ft. .MON NIGHT...NE winds 15 to 20 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, shifting to N 20 to 30 kt after midnight. Seas 7 to 10 ft. .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...N winds 10 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft.