NWS Marine Forecast


   GMZ005-032045-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  435 AM EDT Wed Jun 3 2026      .SYNOPSIS...  The combination of a robust eastern United States surface high and  and a deepening Gulf low will result in light breezes this  morning freshening to at least gentle to moderate. Uncertainty is  high, and periods of higher breezes will be possible. Additional  perturbations are likely due to an expected increase in  convective activity in association with an approaching weak  frontal boundary. Shower and thunderstorm chances will remain  quite elevated through much of the remainder of the week. The  threat of periods of higher breezes will remain. Rain chances  should trend downwards towards normal through the weekend as drier  air moves in and winds diminish.    The Approximate Shoreward Edge of the Gulf Stream as of May 30...    35 NM South of Dry Tortugas Light...on Loggerhead Key.  11 NM South of Cosgrove Shoal Light...off the Marquesas Keys.  10 NM South of Sand Key Light..modestly.off Key West.  7 NM South of Looe Key...off Big Pine Key.  7 NM Southeast of Sombrero Key Light...off Marathon.  6 NM Southeast of Alligator Reef Light...off Islamorada.  2 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 and RTOFS.    $$
   GMZ033-034-032045-  Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM  out and beyond 5 fathoms-  Gulf of America including Dry Tortugas and Rebecca Shoal Channel-  435 AM EDT Wed Jun 3 2026    TODAY  Northeast to east winds 5 to 10 knots, increasing to  10 to 15 knots this afternoon. Seas 1 to 2 feet. Wave Detail:  North 2 feet at 4 seconds. Showers likely with a chance of  thunderstorms.  TONIGHT  Northeast to east winds near 15 knots, decreasing to 10  to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast to east 2  feet at 4 seconds. Showers with a chance of thunderstorms.  THURSDAY  East winds 10 to 15 knots. Seas 2 to 3 feet. Wave  Detail: East 3 feet at 5 seconds. Showers with a chance of  thunderstorms.  THURSDAY NIGHT  Northeast to east winds increasing to near 15  knots after midnight. Seas 2 to 3 feet. Showers likely with a  chance of thunderstorms.  FRIDAY  East winds 10 to 15 knots. Seas 2 to 3 feet. Showers  likely with a chance of thunderstorms.  FRIDAY NIGHT  East winds 10 to 15 knots, increasing to near 15  knots. Seas 2 to 3 feet. A chance of showers and thunderstorms.  SATURDAY  East winds 10 to 15 knots, becoming northeast to east  5 to 10 knots. Seas 1 to 2 feet. A chance of showers with a  slight chance of thunderstorms.  SATURDAY NIGHT  East winds 5 to 10 knots, increasing to near 10  knots. Seas 1 to 2 feet. A chance of showers with a slight chance  of thunderstorms.  SUNDAY  East winds 5 to 10 knots. Seas around 1 foot. A slight  chance of showers and thunderstorms.  SUNDAY NIGHT  Southeast winds 5 to 10 knots. Seas 1 foot or  less. A slight chance of showers and thunderstorms.    $$