NWS Marine Forecast

   GMZ005-140230-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  1027 AM EDT Sun Sep 13 2026      .SYNOPSIS...  A weak pressure pattern today will result in light and varying  breezes. Breezes will gradually firm up out of the northeast to  east over the next few days, as a continental high builds  southward towards our area. Low level moisture will remain  abundant through at least today, and keep convective potential  above normal. Rain chances should fall to near normal early in the  week as drier lower levels filter in. The ridge will be  reinforced through the first half of the week, resulting in  freshening northeast to easterly breezes.    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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   GMZ033-034-140230-  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-  1027 AM EDT Sun Sep 13 2026    THIS AFTERNOON  Southeast to south winds near 10 knots,  becoming variable near 5 knots. Seas around 1 foot, subsiding to 1  foot or less. A chance of showers and thunderstorms.  TONIGHT  Northeast winds near 5 knots. Seas 1 foot or less. A  chance of showers and thunderstorms.  MONDAY  Northeast winds near 5 knots. Seas 1 foot or less. A  chance of showers and thunderstorms.  MONDAY NIGHT  Northeast to east winds 5 to 10 knots. Seas  1 foot or less. Showers likely with a chance of thunderstorms.  TUESDAY  East winds near 10 knots. Seas around 1 foot. Showers  likely with a chance of thunderstorms.  TUESDAY NIGHT  Northeast to east winds near 10 knots,  increasing to near 15 knots. Seas 1 to 2 feet, building to 2 to 3  feet. Showers likely with a chance of thunderstorms.  WEDNESDAY  Northeast to east winds 10 to 15 knots. Seas 2 to  3 feet. Showers likely with a chance of thunderstorms.  WEDNESDAY NIGHT  Northeast to east winds near 15 knots. Seas  building to 2 to 4 feet, occasionally to 5 feet. Showers and  thunderstorms likely.  THURSDAY  East winds 10 to 15 knots. Seas 2 to 3 feet. Showers  and thunderstorms likely.  THURSDAY NIGHT  East winds 10 to 15 knots. Seas around 2 feet.  Showers with a chance of thunderstorms.    $$