NWS Marine Forecast



 Hazardous marine condition(s):
 Short Term Forecast
   GMZ005-060845-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  445 PM EDT Wed Aug 5 2026      .SYNOPSIS...Gentle easterlies will become moderate by this  evening, continuing through early next week, as nearby Atlantic  ridging strengthens and lifts northward towards North Florida. In  addition, rain chances will remain elevated through the end of the  work week, as pockets of deep moisture and slightly cyclonic  upper- level curvature push through the region at times. Higher  winds and seas should be expected in the vicinity of thunderstorm  activity. As the upper-level support wanes over the weekend, rain  and thunder chances will decrease.    The Approximate Shoreward Edge of the Gulf Stream as of  July 31, 2026...    31 NM South of Dry Tortugas Light...on Loggerhead Key.  24 NM South of Cosgrove Shoal Light...off the Marquesas Keys.  25 NM South of Sand Key Light...off Key West.  2 NM South of Looe Key...off Big Pine Key.  1 NM South of Sombrero Key Light...off Marathon.  5 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, using data from RTOFS and NASA SPoRT SST.    $$
   GMZ033-034-060845-  Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM  out and beyond 5 fathoms-  Gulf of America including Dry Tortugas and Rebecca Shoal Channel-  445 PM EDT Wed Aug 5 2026    TONIGHT  East winds near 10 knots, increasing to 10 to 15  knots. Seas 1 to 2 feet, building to around 2 feet. Wave Detail:  East 2 feet at 3 seconds and west to northwest 1 foot at 5  seconds. Showers likely with a chance of thunderstorms.  THURSDAY  East winds 10 to 15 knots. Seas around 2 feet. Wave  Detail: East 2 feet at 4 seconds. A chance of showers and  thunderstorms.  THURSDAY NIGHT  Northeast to east winds 10 to 15 knots,  increasing to near 15 knots. Seas 2 to 3 feet. Wave Detail:  Northeast to east 3 feet at 5 seconds. Showers likely with a  chance of thunderstorms.  FRIDAY  East winds 10 to 15 knots. Seas 2 to 3 feet. Showers  likely with a chance of thunderstorms.  FRIDAY NIGHT  East to southeast winds 10 to 15 knots. Seas  around 2 feet. A chance of showers and thunderstorms.  SATURDAY  Southeast winds 10 to 15 knots, decreasing to near 10  knots. Seas 1 to 2 feet. A chance of showers and thunderstorms.  SATURDAY NIGHT  East to southeast winds near 10 knots. Seas  1 to 2 feet. A chance of showers and thunderstorms.  SUNDAY  East to southeast winds near 10 knots. Seas 1 to 2  feet. A chance of showers and thunderstorms.  SUNDAY NIGHT  East to southeast winds 10 to 15 knots. Seas  around 2 feet. A chance of showers and thunderstorms.  MONDAY  East to southeast winds 10 to 15 knots. Seas around 2  feet. A chance of showers and thunderstorms.  MONDAY NIGHT  East to southeast winds 10 to 15 knots. Seas  around 2 feet. A slight chance of showers.    $$