Offshore Forecast
Issued by NWS
Issued by NWS
716 FZNT32 KNHC 231551 OFFN21 Marine Weather HF Voice Broadcast NWS National Hurricane Center Miami, FL 1151 AM EDT Mon Sep 23 2024 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...Advisories for Potential Tropical Cyclone Nine in the western Caribbean have been initiated this morning. Nine is located near 17.6N 82.0W moving N at 5 kt. Maximum sustained winds are 25 kt with gusts to 35 kt. Minimum central pressure is 1004 mb. Nine is expected to move slowly N-NW today and gradually become better organized, reaching near 18.6N 82.4W this evening as a Tropical Depression, near 19.5N 83.7W Tue morning as a Tropical Storm, near 22.1N 96W Wed morning as a hurricane, near 27.1N 85.1W Thu morning as a major hurricane, then inland near 34N 83W by Fri morning. Nine is expected to become a large and powerful hurricane. Widespread showers and thunderstorms will continue across the W and NW Caribbean then shift into the SE Gulf Tue and Wed as Nine moves northward into the eastern Gulf. Gulf of Mexico N of 26N W of 87W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 ft. .TUE...E winds 10 kt. Seas 3 ft in the morning, subsiding to 2 ft or less. .TUE NIGHT...E winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft after midnight. .WED...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 15 to 25 kt. Seas 3 to 5 ft. .WED NIGHT...HURRICANE CONDITIONS POSSIBLE. .THU...HURRICANE CONDITIONS POSSIBLE. .THU NIGHT...NW winds 15 to 25 kt. Seas 8 to 13 ft. .FRI...NW winds 10 to 20 kt. Seas 6 to 9 ft. Gulf of Mexico from 22N to 26N W of 87W .THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 ft. .TONIGHT...E winds 10 to 15 kt. Seas 3 ft. .TUE...E winds 10 to 15 kt. Seas 3 ft. .TUE NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E winds 15 to 25 kt. Seas 3 to 5 ft. .WED...HURRICANE CONDITIONS POSSIBLE. NE winds 35 to 45 kt. Seas 5 to 7 ft. .WED NIGHT...HURRICANE CONDITIONS POSSIBLE. .THU...TROPICAL STORM CONDITIONS POSSIBLE. .THU NIGHT...NW winds 15 to 25 kt. Seas 6 to 9 ft. .FRI...NW winds 10 to 15 kt, diminishing to less than 10 kt in the afternoon. Seas 5 to 7 ft. SW Gulf of Mexico S of 22N W of 87W .THIS AFTERNOON...E winds less than 10 kt. Seas 2 ft or less. .TONIGHT...Variable winds less than 10 kt within 60 nm of coast of Veracruz, and NE 10 to 20 kt elsewhere. Seas 2 ft or less. .TUE...Variable winds less than 10 kt within 60 nm of coast of Veracruz, and E 10 to 15 kt elsewhere. Seas 2 ft or less. .TUE NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. Within 60 nm of coast of Veracruz, NE winds less than 10 kt in the evening, becoming variable winds less than 10 kt. Elsewhere, NE winds 15 to 25 kt. Seas 2 ft or less. .WED...TROPICAL STORM CONDITIONS POSSIBLE. NW winds 10 to 15 kt within 60 nm of coast of Veracruz, and N 30 to 40 kt elsewhere. Seas 2 ft or less, building to 3 ft in the afternoon. .WED NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. .THU...NW winds 10 to 15 kt within 60 nm of coast of Veracruz, and W 15 to 25 kt elsewhere. Seas 3 to 5 ft. .THU NIGHT...Within 60 nm of coast of Veracruz, NW winds 10 to 15 kt. Elsewhere, NW winds 10 to 15 kt, shifting to W after midnight. Seas 3 to 5 ft. .FRI...NW winds less than 10 kt within 60 nm of coast of Veracruz, and W 10 to 15 kt elsewhere. Seas 3 to 5 ft. Gulf of Mexico E of 87W .THIS AFTERNOON...E winds 10 kt. Seas 2 ft or less. .TONIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. .TUE...TROPICAL STORM CONDITIONS POSSIBLE. E winds 10 to 20 kt. Seas 3 to 5 ft. .TUE NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E winds 35 to 45 kt, increasing to 45 to 55 kt after midnight. Seas 5 to 7 ft. .WED...HURRICANE CONDITIONS POSSIBLE. E winds 55 to 65 kt, increasing to 65 to 75 kt in the afternoon. Seas 7 to 10 ft, building to 8 to 13 ft in the afternoon. .WED NIGHT...HURRICANE CONDITIONS POSSIBLE. .THU...HURRICANE CONDITIONS POSSIBLE. .THU NIGHT...HURRICANE CONDITIONS POSSIBLE. .FRI...SW winds 15 to 25 kt. Seas 7 to 10 ft.