NWS Marine Forecast


   GMZ005-230930-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  428 PM EST Sat Nov 22 2025      .SYNOPSIS...Light, predominantly northeasterly breezes will  linger through the weekend. A new continental high will push in to  the eastern United States early next week, resulting in  freshening northeast to easterly breezes. This high will progress  eastward into the Atlantic, and after mid week, breezes should  collapse as the pressure field becomes nebulous.    The Approximate Shoreward Edge of the Gulf Stream as of November 14...    54 NM South of Dry Tortugas Light...on Loggerhead Key.  23 NM South of Cosgrove Shoal Light...off the Marquesas Keys.  19 NM South of Sand Key Light...off Key West.  17 NM South of Looe Key...off Big Pine Key.  15 NM Southeast of Sombrero Key Light...off Marathon.  4 NM Southeast of Alligator Reef Light...off Islamorada.  1 NM Southeast of Molasses Reef Light...off Key Largo.  1 NM Southeast of Carysfort Reef Light...off Ocean Reef.    Gulf Stream Information Courtesy of the National Weather Service  in Key West based on products from NASA SPoRT.    $$
   GMZ033-034-230930-  Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM  out and beyond 5 fathoms-  Gulf of America including Dry Tortugas and Rebecca Shoal Channel-  428 PM EST Sat Nov 22 2025    TONIGHT  North to northeast winds 5 to 10 knots. Seas 1 to  2 feet. Wave Detail: Northeast to east 1 foot at 3 seconds.  SUNDAY  North to northeast winds 5 to 10 knots. Seas around 1  foot. Wave Detail: North to northeast 1 foot at 3 seconds.  SUNDAY NIGHT  North to northeast winds 5 to 10 knots. Seas  around 1 foot. Wave Detail: North to northeast 1 foot at 3  seconds.  MONDAY  Northeast to east winds near 10 knots, decreasing to 5  to 10 knots. Seas 1 to 2 feet.  MONDAY NIGHT  East winds increasing to 10 to 15 knots. Seas  building to 1 to 3 feet.  TUESDAY  East winds 10 to 15 knots. Seas 2 to 3 feet. Isolated  showers.  TUESDAY NIGHT  East winds 10 to 15 knots. Seas 2 to 3 feet.  Isolated showers.  WEDNESDAY  East winds 10 to 15 knots, decreasing to near 10  knots. Seas 1 to 3 feet. Isolated showers.  WEDNESDAY NIGHT  East winds near 10 knots. Seas 1 to 2 feet.  Isolated showers.  THURSDAY  East winds near 10 knots. Seas 2 to 3 feet. Isolated  showers.  THURSDAY NIGHT  Northeast winds 10 to 15 knots, increasing to  near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet, building  to 5 to 7 feet, occasionally to 9 feet. Isolated showers.    $$