NWS Marine Forecast

   GMZ005-162030-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  428 AM EDT Wed Sep 16 2026      .SYNOPSIS...  Gentle to moderate northeast to easterly breezes will prevail over  the next couple of days due to a ridge building southward through  the eastern United States. Winds will then slacken and shift east  to southeast through the remainder of the week as the high weakens  and slips into the Atlantic. A wet pattern will persist across  Keys waters through the duration of the forecast as high moisture  and broad troughing moves westward into the Keys.    The Approximate Shoreward Edge of the Gulf Stream as of September  11, 2026...    26 NM south of Dry Tortugas Light, on Loggerhead Key  15 NM south of Cosgrove Shoal Light, off the Marquesas Keys  15 NM south of Sand Key Light, off Key West  11 NM south-southeast of Looe Key, off Big Pine Key  8 NM southeast of Sombrero Key Light, off Marathon  6 NM southeast of Alligator Reef Light, off Islamorada  2 NM southeast of Molasses Reef Light, off Key Largo  1 NM east-southeast of Carysfort Reef Light, off Ocean Reef    Gulf Stream Information Courtesy of the National Weather Service in  Key West, using data from RTOFS and NASA SPoRT SST.    $$

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   GMZ033-034-162030-  Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM  out and beyond 5 fathoms-  Gulf of America including Dry Tortugas and Rebecca Shoal Channel-  428 AM EDT Wed Sep 16 2026    TODAY  Northeast to east winds 10 to 15 knots. Seas 2 to 3  feet. Wave Detail: Northeast to east 2 feet at 4 seconds. Showers  likely with a chance of thunderstorms.  TONIGHT  Northeast to east winds 10 to 15 knots, increasing to 15  to 20 knots. Seas 2 to 3 feet, building to 2 to 4 feet. Wave  Detail: Northeast to east 3 feet at 5 seconds. A chance of  showers and thunderstorms.  THURSDAY  Northeast to east winds near 15 knots, decreasing to  near 10 knots. Seas subsiding to 2 to 3 feet. Wave Detail:  Northeast to east 3 feet at 5 seconds. A chance of showers and  thunderstorms.  THURSDAY NIGHT  East winds 10 to 15 knots. Seas 2 to 3 feet.  Showers with a chance of thunderstorms.  FRIDAY  East winds 5 to 10 knots. Seas 1 to 2 feet. Showers  likely with a chance of thunderstorms.  FRIDAY NIGHT  East winds 5 to 10 knots. Seas subsiding to  around 1 foot. Showers likely with a chance of thunderstorms.  SATURDAY  East to southeast winds 5 to 10 knots. Seas 1 foot or  less. Showers likely with a chance of thunderstorms.  SATURDAY NIGHT  Southeast winds near 5 knots. Seas 1 foot or  less. Showers likely with a chance of thunderstorms.  SUNDAY  Southwest winds near 5 knots. Seas 1 foot or less. A  chance of showers and thunderstorms.  SUNDAY NIGHT  South winds 5 to 10 knots. Seas 1 foot or less.  Showers likely with a chance of thunderstorms.    $$