


Offshore Forecast
Issued by NWS
Issued by NWS
413 FZNT32 KNHC 121336 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 936 AM EDT Wed Mar 12 2025 Marine Weather HF Voice Broadcast for the Gulf of America 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 1019 mb high pressure centered over the NE Gulf of America will slide eastward across Florida and into the W Atlantic by Thu. Moderate to fresh southerly return flow will set up over the western basin today, then weaken Thu as a front approaches SE Texas. Southerly winds will then increase to fresh to strong speeds across most of the basin Fri, then to strong Fri night ahead of the front. The cold front will move into the NW portion early Sat, and quickly weaken, reaching from the Florida Panhandle to just S of Veracruz, Mexico by Sun morning. A reinforcing push may advance the front out of the basin late Sun night. Gulf of America N of 26N W of 87W .THIS AFTERNOON...S winds 10 to 15 kt. Seas 3 ft. .TONIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .THU...SW winds 10 to 15 kt. Seas 3 to 5 ft. .THU NIGHT...S winds less than 10 kt. Seas 3 ft. .FRI...S winds 10 to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...S winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...S winds 15 to 25 kt. Seas 7 to 10 ft. .SAT NIGHT...W winds 15 to 25 kt. Seas 7 to 10 ft. .SUN...NW winds less than 10 kt, shifting to N in the afternoon. Seas 6 to 9 ft. .SUN NIGHT...N winds 15 to 25 kt. Seas 5 to 7 ft. Gulf of America from 22N to 26N W of 87W .THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 to 4 ft. .TONIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. .THU...S winds 10 to 15 kt. Seas 3 to 4 ft. .THU NIGHT...SE winds less than 10 kt. Seas 3 ft. .FRI...SE winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. .SAT...S winds 15 to 25 kt. Seas 6 to 9 ft. .SAT NIGHT...SE winds 10 to 20 kt, shifting to NE after midnight. Seas 6 to 9 ft. .SUN...N winds 10 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...N winds 15 to 25 kt. Seas 5 to 7 ft. SW Gulf of America S of 22N W of 87W .THIS AFTERNOON...SE winds less than 10 kt within 60 nm of coast of Veracruz, and SE 10 to 15 kt elsewhere. Seas 3 to 4 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .THU...Within 60 nm of coast of Veracruz, SE winds less than 10 kt, shifting to N in the afternoon. Elsewhere, SE winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 3 to 4 ft. .THU NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 ft or less. .FRI...SE winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft in the afternoon. .FRI NIGHT...SE winds 10 to 20 kt. Seas 3 ft. .SAT...S winds 10 to 20 kt. Seas 3 to 5 ft. .SAT NIGHT...SE winds 10 to 15 kt, shifting to E after midnight. Seas 3 to 5 ft. .SUN...N winds 10 to 20 kt. Seas 3 to 4 ft. .SUN NIGHT...N winds 15 to 25 kt. Seas 4 to 6 ft. Gulf of America E of 87W .THIS AFTERNOON...SE winds less than 10 kt. Seas 3 to 4 ft. .TONIGHT...SE winds less than 10 kt. Seas 3 ft. .THU...S winds less than 10 kt. Seas 2 ft or less. .THU NIGHT...SE winds less than 10 kt. Seas 2 ft or less. .FRI...SE winds 10 to 15 kt. Seas 2 ft or less. .FRI NIGHT...SE winds 10 to 20 kt. Seas 3 to 4 ft. .SAT...SE winds 15 to 25 kt. Seas 4 to 6 ft. .SAT NIGHT...S winds 15 to 25 kt. Seas 6 to 8 ft. .SUN...S winds 10 to 20 kt. Seas 6 to 8 ft. .SUN NIGHT...W winds 10 to 20 kt. Seas 4 to 6 ft.