Offshore Forecast
Issued by NWS
Issued by NWS
403 FZNT25 KNHC 181500 OFFN04 NAVTEX Marine Forecast NWS National Hurricane Center Miami, FL 1100 AM EDT Fri Sep 18 2026 ...Please refer to Coastal Waters Forecasts (CWF) available through NOAA Weather Radio and other means for detailed Coastal Waters Forecasts... Southeast Gulf of America .SYNOPSIS...The pressure gradient between high pressure over the southeastern U.S. and a weakening frontal trough over the SE Gulf supports fresh NE to E winds and moderate seas over the northern Gulf. These conditions will gradually improve later today into Sat. Meanwhile, a rather broad upper-level low will move towards Florida from the western Atlantic today, and into the NE Gulf on Sat. This feature will lead to increasing shower and thunderstorm activity over Florida, and then over the eastern and central Gulf waters. Fairly tranquil marine conditions are forecast by the end of the weekend into early next week. .THIS AFTERNOON...E winds 10 to 15 kt in the afternoon. Seas 3 to 4 ft. Scattered showers and isolated tstms. .TONIGHT...NE to E winds 5 to 10 kt. Seas 3 ft in the evening, subsiding to 2 ft or less. Scattered showers and isolated tstms. .SAT...E winds 5 to 10 kt. Seas 2 ft or less. Scattered showers and isolated tstms. .SAT NIGHT...E winds 5 to 10 kt. Seas 2 ft or less. Scattered showers and isolated tstms. .SUN...SE winds less than 5 kt. Seas 2 ft or less. .SUN NIGHT...NE to E winds less than 5 kt, shifting to SE after midnight. Seas 2 ft or less. .MON...S winds less than 5 kt. Seas 2 ft or less. .MON NIGHT...SE winds 5 to 10 kt. Seas 2 ft or less. .TUE...E to SE winds less than 5 kt. Seas 2 ft or less. .TUE NIGHT...E to SE winds 10 to 15 kt. Seas 2 ft or less. Within 200 nm east of the coast of Florida .SYNOPSIS...A weakening stationary front that extends from near Bermuda to central Florida will gradually wash out today. Conditions will improve early on Fri as high pressure becomes the dominant feature across the basin during the weekend into early next week. Meanwhile, abundant tropical moisture, combined with an upper-level low located east of Florida, will continue to support scattered to numerous showers and thunderstorms, mainly W of 70W, through at least Sun. .THIS AFTERNOON...E winds 5 to 10 kt in the afternoon. Seas 3 ft late in the morning, subsiding to 2 ft or less. .TONIGHT...E winds 5 to 10 kt. Seas 2 ft or less. Scattered showers and isolated tstms. .SAT...SE winds less than 5 kt S of 27N, and E 5 to 10 kt N of 27N. Seas 2 ft or less. Scattered showers and isolated tstms. .SAT NIGHT...E to SE winds 5 to 10 kt. Seas 2 ft or less. Scattered showers and isolated tstms. .SUN...SE to S winds 5 to 10 kt. Seas 2 ft or less. .SUN NIGHT...SE winds 5 to 10 kt. Seas 2 ft or less. .MON...SE to S winds 5 to 10 kt. Seas 2 ft or less. .MON NIGHT...SE to S winds 5 to 10 kt. Seas 2 ft or less. .TUE...SE to S winds 5 to 10 kt. Seas 2 ft or less. .TUE NIGHT...SE to S winds less than 5 kt. Seas 2 ft or less.