NWS Marine Forecast


   GMZ005-060930-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  428 PM EST Thu Nov 5 2026      .SYNOPSIS...  A weak ridge will stretch southwestward across the Florida  Peninsula, keeping gentle northeast to easterly breezes tonight  and tomorrow. Breezes will slacken heading into the weekend as  the ridge weakens and shifts southward into South Florida and the  Keys. There is a potential for brief nocturnal surges each night  through the next several days. In addition, drier air filtering  through the lower levels will keep near normal rain chances. A  surface high will develop across the Gulf beginning Friday, which  may lead to brief nocturnal wind surges along the west coast of  Florida and into the outer Gulf waters.    The Approximate Shoreward Edge of the Gulf Stream as of November  03, 2026...    57 NM south of Dry Tortugas Light, on Loggerhead Key  34 NM south of Cosgrove Shoal Light, off the Marquesas Keys  25 NM south of Sand Key Light, off Key West  17 NM south of Looe Key, off Big Pine Key  17 NM southeast of Sombrero Key Light, off Marathon  28 NM south-southeast of Alligator Reef Light, off Islamorada  26 NM southeast of Molasses Reef Light, off Key Largo  12 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.    $$
   GMZ033-034-060930-  Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM  out and beyond 5 fathoms-  Gulf of America including Dry Tortugas and Rebecca Shoal Channel-  428 PM EST Thu Nov 5 2026    TONIGHT  Northeast to east winds 5 to 10 knots. Seas around  1 foot. Wave Detail: Northeast to east 1 foot at 3 seconds.  FRIDAY  Northeast winds 5 to 10 knots. Seas around 1 foot. Wave  Detail: Northeast to east 1 foot at 3 seconds.  FRIDAY NIGHT  North winds 5 to 10 knots. Seas around 1 foot.  Wave Detail: North to northeast 1 foot at 3 seconds.  SATURDAY  North to northeast winds near 10 knots. Seas around  1 foot.  SATURDAY NIGHT  North winds near 10 knots. Seas around 1 foot,  building to 1 to 2 feet.  SUNDAY  North to northeast winds near 10 knots. Seas around  2 feet.  SUNDAY NIGHT  Northeast winds near 10 knots, increasing to 10  to 15 knots. Seas around 2 feet.  MONDAY  Northeast to east winds 10 to 15 knots. Seas 2 to  3 feet.  MONDAY NIGHT  Northeast to east winds 10 to 15 knots. Seas 2 to  3 feet. A slight chance of showers.  TUESDAY  Northeast to east winds near 15 knots, decreasing to 10  to 15 knots. Seas 2 to 3 feet, subsiding to 1 to 2 feet. A slight  chance of showers and thunderstorms.  TUESDAY NIGHT  Northeast to east winds near 10 knots. Seas 1 to  2 feet. A slight chance of showers and thunderstorms.    $$