NWS Marine Forecast


   GMZ005-162030-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  418 AM EDT Tue Jun 16 2026      .SYNOPSIS...Light to gentle breezes will persist through the  middle of the week across the Florida Keys coastal waters.  Starting Tuesday night and Wednesday, the Mid-Atlantic high will  begin to strengthen and support slightly fresher breezes through  the end of the week. Shower and thunder chances are expected to  remain very low through the forecast period.    The Approximate Shoreward Edge of the Gulf Stream as of June 15...    28 NM South of Dry Tortugas Light...on Loggerhead Key.  12 NM South of Cosgrove Shoal Light...off the Marquesas Keys.  11 NM South of Sand Key Light...off Key West.  14 NM South of Looe Key...off Big Pine Key.  13 NM Southeast of Sombrero Key Light...off Marathon.  8 NM Southeast of Alligator Reef Light...off Islamorada.  4 NM Southeast of Molasses Reef Light...off Key Largo.  3 NM East 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.    $$
   GMZ052>055-072>075-162030-  Straits of Florida from Ocean Reef to Craig Key out 20 NM-  Straits of Florida from Craig Key to west end of Seven Mile  Bridge out 20 NM-  Straits of Florida from west end of Seven Mile Bridge to south of  Halfmoon Shoal out 20 NM-  Straits of Florida from Halfmoon Shoal to 20 NM west of Dry  Tortugas out 20 NM-  Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out-  Straits of Florida from Craig Key to west end of Seven Mile  Bridge 20 to 60 NM out-  Straits of Florida from west end of Seven Mile Bridge to south of  Halfmoon Shoal 20 to 60 NM out-  Straits of Florida from Halfmoon Shoal to 20 NM west of Dry  Tortugas 20 to 60 NM out-  418 AM EDT Tue Jun 16 2026    TODAY  Southeast to south winds near 10 knots, becoming east to  southeast 5 to 10 knots. Seas 1 to 2 feet. Wave Detail:  Southeast 2 feet at 4 seconds. A slight chance of showers.  TONIGHT  Southeast winds 5 to 10 knots, increasing to near 10  knots. Seas 1 to 2 feet. Wave Detail: East to southeast 2 feet at  4 seconds. A slight chance of showers and thunderstorms.  WEDNESDAY  Southeast to south winds near 10 knots. Seas 1 to 2  feet. Wave Detail: Southeast 1 foot at 4 seconds. A slight chance  of showers and thunderstorms in the morning.  WEDNESDAY NIGHT  Southeast winds near 10 knots. Seas 1 to  2 feet. A slight chance of showers and thunderstorms.  THURSDAY  East to southeast winds near 10 knots. Seas 1 to 2  feet. A slight chance of showers and thunderstorms.  THURSDAY NIGHT  East to southeast winds 10 to 15 knots. Seas  2 to 3 feet. A slight chance of showers and thunderstorms.  FRIDAY  Southeast winds near 10 knots. Seas around 2 feet. A  slight chance of showers and thunderstorms.  FRIDAY NIGHT  East to southeast winds 10 to 15 knots. Seas 2 to  3 feet.  SATURDAY  East to southeast winds near 10 knots, decreasing to  5 to 10 knots. Seas 1 to 2 feet.  SATURDAY NIGHT  Northeast to east winds 5 to 10 knots, becoming  southeast. Seas around 1 foot.    $$