Offshore Forecast
Issued by NWS

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979
FZNT26 KNHC 181528
OFFN05

NAVTEX Marine Forecast
NWS National Hurricane Center Miami, FL
1128 AM EDT Sat Oct 18 2025

...Please refer to Coastal Waters Forecasts (CWF) available
through NOAA Weather Radio and other means for detailed
Coastal Waters Forecasts...

.SYNOPSIS...A long-period N swell will support rough seas over
the Atlantic waters and through the passages late tonight into
early next week. Looking ahead, a tropical wave located in the
central Atlantic will move westward this weekend, entering the
eastern Caribbean Sun night. Fresh to strong winds and rough seas
will accompany this wave as it moves over the Caribbean waters
early next week. This system has a low chance of tropical
development within the next 7 days.

San Juan Atlantic Waters

.THIS AFTERNOON...SE winds less than 5 kt. Seas 4 to 6 ft in N
swell. Scattered showers and isolated tstms.
.TONIGHT...E winds 5 to 10 kt. Seas 6 to 8 ft in N swell.
Scattered showers and isolated tstms.
.SUN...E to SE winds 5 to 10 kt. Seas 6 to 9 ft in N swell.
Scattered showers and isolated tstms.
.SUN NIGHT...E winds 10 to 15 kt. Seas 8 to 9 ft in N swell.
Isolated tstms.
.MON...E winds 10 to 15 kt. Seas 7 to 8 ft in N swell.
.MON NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft in N swell.
.TUE...E to SE winds 15 kt. Seas 6 to 7 ft.
.TUE NIGHT...E to SE winds 15 kt. Seas 6 to 7 ft.
.WED...E to SE winds 10 to 15 kt. Seas 6 ft.
.WED NIGHT...E to SE winds 10 to 15 kt. Seas 5 to 6 ft.

San Juan Caribbean Waters

.THIS AFTERNOON...SE winds 5 to 10 kt. Seas 3 to 4 ft.
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SUN NIGHT...NE to E winds 15 to 20 kt. Seas 6 to 8 ft.
.MON...E winds 15 to 25 kt. Seas 6 to 8 ft.
.MON NIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft.
.TUE...E winds 15 to 20 kt. Seas 5 to 7 ft.
.TUE NIGHT...E winds 15 to 20 kt. Seas 5 to 7 ft.
.WED...E winds 10 to 15 kt. Seas 5 to 6 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.