


Offshore Forecast
Issued by NWS
Issued by NWS
015 FZNT25 KNHC 220146 OFFN04 NAVTEX Marine Forecast NWS National Hurricane Center Miami, FL 946 PM EDT Thu Aug 21 2025 ...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...A weak pressure pattern will continue over the area through the period maintaining quiet marine conditions. Moderate to fresh northeast to southeast winds will be possible over the south-central Gulf each afternoon and evening through this weekend as a trough develops over the Yucatan Peninsula and moves westward. .OVERNIGHT...S to SW winds 5 to 10 kt late. Seas 2 ft or less. Chance of showers and isolated tstms. .FRI...SW winds 5 to 10 kt. Seas 2 ft or less. Chance of showers and isolated tstms. .FRI NIGHT...S to SW winds 5 to 10 kt. Seas 2 ft or less. Chance of tstms. .SAT...SW winds 5 to 10 kt. Seas 2 ft or less. Scattered showers and isolated tstms. .SAT NIGHT...W winds 5 to 10 kt, shifting to S late. Seas 2 ft or less. .SUN...SW winds 5 to 10 kt. Seas 2 ft or less. .SUN NIGHT...W to NW winds 5 to 10 kt, shifting to SW late. Seas 2 ft or less. .MON...SW to W winds 5 to 10 kt. Seas 2 ft or less. .MON NIGHT...NW to N winds 5 to 10 kt. Seas 2 ft or less. .TUE...NW to N winds 5 to 10 kt. Seas 2 ft or less. .TUE NIGHT...N to NE winds 5 to 10 kt. Seas 2 ft or less. Within 200 nm east of the coast of Florida .SYNOPSIS...Hurricane Erin is centered N of the area and continues to move NNE away from the region. Despite its distance, long period northerly swells generated by Erin will continue to affect the W Atlantic waters through the next few days. In the wake of Erin, central Atlantic high pressure will build WSW toward the central Bahamas and the Straits of Florida. An area of disorganized showers and thunderstorms associated with a tropical wave is located a few hundred nautical miles east of the Leeward Islands. Environmental conditions appear conducive for further development of this system, and a tropical depression is likely to form this weekend while it moves near or to the north of the northern Leeward Islands. Regardless of development, increasing winds and building seas will accompany the feature across portions of the zones east of 70W. .OVERNIGHT...SW winds 5 to 10 kt late. Seas 2 ft or less S of 27N, and 4 to 6 ft N of 27N. Scattered showers and isolated tstms. .FRI...SW to W winds 5 to 10 kt S of 27N, and W 5 to 10 kt N of 27N. Seas 2 ft or less S of 27N, and 3 to 5 ft N of 27N. Chance of showers and isolated tstms. .FRI NIGHT...S of 27N, NW to N winds less than 5 kt, shifting to SE to S late. N of 27N, SW to W winds 5 to 10 kt. Seas 2 ft or less S of 27N, and 4 to 6 ft N of 27N. Showers likely and chance of tstms. .SAT...S to SW winds less than 5 kt S of 27N, and SW to W 5 to 10 kt N of 27N. Seas 2 ft or less S of 27N, and 3 to 5 ft N of 27N. Showers likely and isolated tstms. .SAT NIGHT...S to SW winds 5 to 10 kt. Seas 2 ft or less S of 27N, and 3 to 5 ft N of 27N. .SUN...S to SW winds 10 to 15 kt. Seas 2 ft or less S of 27N, and 4 to 6 ft N of 27N. .SUN NIGHT...S to SW winds 10 to 15 kt. Seas 2 ft or less S of 27N, and 4 to 6 ft N of 27N. .MON...SW winds 10 to 15 kt. Seas 2 ft or less S of 27N, and 4 to 6 ft N of 27N. .MON NIGHT...S to SW winds 5 to 10 kt. Seas 2 ft or less S of 27N, and 3 to 5 ft N of 27N. .TUE...S winds 5 to 10 kt. Seas 2 ft or less S of 27N, and 3 to 5 ft N of 27N. .TUE NIGHT...SE to S winds 5 to 10 kt. Seas 2 ft or less S of 27N, and 3 ft N of 27N.