NWS Marine Forecast


   GMZ005-051415-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  914 PM EST Wed Nov 4 2026      .SYNOPSIS...  The flanks of a robust high pressure system offshore the Mid  Atlantic States will be will eroded by a low over the  northeastern United States and a deepening low well northeast of  the Bahamas. As a result, northeast to east breezes will gradually  slacken through Friday. With that said, there is a potential for  brief nocturnal surges each night through the next several days.  In addition, drier air will be filtering in this evening and  lasting through the end of the week, leading to diminishing 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.    $$
   GMZ033-034-051415-  Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM  out and beyond 5 fathoms-  Gulf of America including Dry Tortugas and Rebecca Shoal Channel-  914 PM EST Wed Nov 4 2026    OVERNIGHT  Northeast to east winds near 10 knots. Seas around  1 foot. Wave Detail: Northeast to east 1 foot at 3 seconds. A  slight chance of showers and thunderstorms.  THURSDAY  Northeast to east winds near 10 knots, decreasing to 5  to 10 knots. Seas around 1 foot. Wave Detail: Northeast to east 1  foot at 3 seconds. A slight chance of showers and thunderstorms.  THURSDAY NIGHT  Northeast to east winds increasing to near 10  knots. Seas around 1 foot. Wave Detail: Northeast to east 1 foot  at 3 seconds. A slight chance of showers and thunderstorms.  FRIDAY  Northeast winds 5 to 10 knots. Seas around 1 foot,  subsiding to 1 foot or less.  FRIDAY NIGHT  North winds near 10 knots. Seas around 1 foot.  SATURDAY  North to northeast winds 5 to 10 knots. Seas around  1 foot.  SATURDAY NIGHT  North to northeast winds near 10 knots. Seas  building to 1 to 2 feet.  SUNDAY  Northeast winds near 10 knots. Seas 1 to 2 feet.  SUNDAY NIGHT  Northeast winds 10 to 15 knots. Seas building to  2 to 3 feet. A slight chance of showers.  MONDAY  East winds 10 to 15 knots. Seas 2 to 3 feet. A slight  chance of showers.  MONDAY NIGHT  East winds near 15 knots. Seas 2 to 3 feet. A  slight chance of showers.    $$