NWS Marine Forecast


   GMZ005-170845-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  431 PM EDT Wed Jul 16 2025      .SYNOPSIS...An area of low pressure will continue to slide  westward along the northern Gulf coast. Meanwhile, a strong area  of high pressure will build westward across the North Atlantic  towards the Florida Peninsula, supporting freshening east to  southeast breezes over the next several days. As a second, weak  area of high pressure builds over the eastern Gulf for the second  half of the weekend, easterly breezes will slacken, becoming  light to gentle.    The Approximate Shoreward Edge of the Gulf Stream as of July 15...    18 NM South of Dry Tortugas Light...on Loggerhead Key.  3 NM South of Cosgrove Shoal Light...off the Marquesas Keys.  1 NM South of Sand Key Light...off Key West.  4 NM South of Looe Key...off Big Pine Key.  4 NM Southeast of Sombrero Key Light...off Marathon.  10 NM Southeast of Alligator Reef Light...off Islamorada.  6 NM Southeast of Molasses Reef Light...off Key Largo.  3 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.    $$
   GMZ033-034-170845-  Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM  out and beyond 5 fathoms-  Gulf of America including Dry Tortugas and Rebecca Shoal Channel-  431 PM EDT Wed Jul 16 2025    TONIGHT  Southeast winds 10 to 15 knots. Seas around 2 feet.  Wave Detail: East to southeast 2 feet at 3 seconds. Scattered  showers and thunderstorms.  THURSDAY  East to southeast winds 10 to 15 knots. Seas around 2  feet. Wave Detail: East to southeast 2 feet at 4 seconds.  Scattered showers and isolated thunderstorms.  THURSDAY NIGHT  East to southeast winds 10 to 15 knots,  increasing to near 15 knots. Seas around 2 feet, building to 2 to  3 feet. Wave Detail: East to southeast 3 feet at 4 seconds.  Scattered showers and isolated thunderstorms.  FRIDAY  East to southeast winds near 15 knots, decreasing to 10  to 15 knots. Seas 2 to 3 feet. Scattered showers and isolated  thunderstorms.  FRIDAY NIGHT  East winds 10 to 15 knots, increasing to near 15  knots. Seas 2 to 3 feet. Scattered showers and isolated  thunderstorms.  SATURDAY  East winds near 15 knots, becoming east to southeast  and decreasing to near 10 knots. Seas around 2 feet, subsiding to  1 to 2 feet. Isolated showers and thunderstorms.  SATURDAY NIGHT  East winds near 10 knots. Seas 1 to 2 feet.  Isolated showers and thunderstorms.  SUNDAY  Northeast to east winds 5 to 10 knots. Seas 1 to  2 feet. Scattered showers and isolated thunderstorms.  SUNDAY NIGHT  East winds 5 to 10 knots. Seas around 1 foot.  Scattered showers and isolated thunderstorms.  MONDAY  Northeast to east winds near 5 knots. Seas 1 foot or  less. Scattered showers and isolated thunderstorms.  MONDAY NIGHT  Northeast to east winds 5 to 10 knots, becoming  east to southeast after midnight. Seas 1 foot or less. Scattered  showers and isolated thunderstorms.    $$