NWS Marine Forecast

   GMZ005-020230-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  1020 AM EDT Thu Oct 1 2026      .SYNOPSIS...  High pressure offshore of the Eastern Seaboard will merge with an  existing region of high pressure across the subtropical Atlantic,  and subsequently build through the end of the week. Moderate to  fresh breezes are expected to continue across the Florida Keys  waters through tonight. Widespread Small Craft Should Exercise  Caution headlines will be necessary through at least this evening  while a Small Craft Advisory is in effect for the southeastern  Gulf and Straits of Florida. In addition, a very wet pattern will  remain across the Keys over the next couple 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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   GMZ033-034-020230-  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-  1020 AM EDT Thu Oct 1 2026    SMALL CRAFT ADVISORY IN EFFECT    THIS AFTERNOON  East to southeast winds 15 to 20 knots. Seas 3  to 5 feet, occasionally to 6 feet. Wave Detail: East to southeast  5 feet at 5 seconds. Showers likely with a chance of  thunderstorms.  TONIGHT  East to southeast winds 15 to 20 knots. Seas 3 to  5 feet, occasionally to 6 feet. Wave Detail: East to southeast  5 feet at 5 seconds. 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. Wave Detail: East to southeast  5 feet at 5 seconds. Showers likely with a chance of  thunderstorms.  FRIDAY NIGHT  East to southeast winds near 15 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 3 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 3 feet. A chance of showers and thunderstorms.  SUNDAY  East to southeast winds 10 to 15 knots. Seas 1 to  2 feet. A chance of showers and thunderstorms.  SUNDAY NIGHT  East to southeast winds near 10 knots. Seas 1 to  2 feet. A slight chance of showers and thunderstorms.  MONDAY  Southeast winds 5 to 10 knots. Seas 1 foot or less. A  slight chance of showers and thunderstorms.  MONDAY NIGHT  East to southeast winds near 5 knots. Seas 1 foot  or less. A slight chance of showers and thunderstorms.    $$