NWS Marine Forecast

   GMZ005-291445-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  1037 PM EDT Mon Sep 28 2026      .SYNOPSIS...  A weak ridge axis will remain off to our south over the next  couple of days, resulting in gentle broadly southerly breezes. Winds  then become more easterly by Tuesday as a high pressure moves  into the eastern U.S. Thereafter, this high will merge with an  existing high pressure across the Atlantic and subsequently will  build. This will promote freshening breezes, with an increasing  likelihood of moderate to fresh breezes for the latter half of the  week. A very wet pattern will remain across the Keys over the  next few days, resulting in periods of scattered to numerous  showers and thunderstorms.    The Approximate Shoreward Edge of the Gulf Stream as of  September 25, 2026...    43 NM south of Dry Tortugas Light, on Loggerhead Key  20 NM south of Cosgrove Shoal Light, off the Marquesas Keys  14 NM south of Sand Key Light, off Key West  7 NM south-southeast of Looe Key, off Big Pine Key  4 NM south-southeast of Sombrero Key Light, off Marathon  4 NM south-southeast of Alligator Reef Light, off Islamorada  0 NM southeast of Molasses Reef Light, off Key Largo  1 NM west-northwest of Carysfort Reef Light, off Ocean Reef    Gulf Stream Information Courtesy of the Naval Oceanographic Office.    $$

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   GMZ033-034-291445-  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-  1037 PM EDT Mon Sep 28 2026    OVERNIGHT  South to southwest winds 10 to 15 knots, becoming  southeast to south 5 to 10 knots. Seas 1 to 2 feet. Wave Detail:  Southwest 1 to 2 feet at 2 seconds. A chance of showers and  thunderstorms.  TUESDAY  Southeast winds 5 to 10 knots, becoming southeast to  south 10 to 15 knots. Seas 1 to 2 feet. Wave Detail:  South 1 foot at 2 seconds. Showers likely with a chance of  thunderstorms.  TUESDAY NIGHT  East to southeast winds 10 to 15 knots. Seas  1 to 2 feet. Wave Detail: Southeast 2 feet at 3 seconds and  southwest 1 foot at 5 seconds. Showers likely with a chance of  thunderstorms.  WEDNESDAY  East winds 10 to 15 knots, increasing to 15 to  20 knots. Seas 2 to 3 feet. Showers likely with a chance of  thunderstorms.  WEDNESDAY NIGHT  East winds 15 to 20 knots. Seas 3 to 5 feet,  occasionally to 6 feet. Showers likely with a chance of  thunderstorms.  THURSDAY  East to southeast winds near 20 knots. Seas 3 to 5  feet, occasionally to 6 feet. Showers likely with a chance of  thunderstorms.  THURSDAY NIGHT  East to southeast winds 15 to 20 knots. Seas  4 to 5 feet, occasionally to 6 feet. Showers likely with a chance  of thunderstorms.  FRIDAY  East to southeast winds 15 to 20 knots. Seas 3 to  5 feet, occasionally to 6 feet. Showers likely with a chance of  thunderstorms.  FRIDAY NIGHT  East to southeast winds 15 to 20 knots. Seas 3 to  4 feet, occasionally to 5 feet. A chance of showers and  thunderstorms.  SATURDAY  East to southeast winds 10 to 15 knots. Seas 2 to  4 feet, occasionally to 5 feet. A chance of showers and  thunderstorms.  SATURDAY NIGHT  East to southeast winds near 15 knots. Seas  2 to 4 feet, occasionally to 5 feet. A chance of showers and  thunderstorms.    $$