NWS Marine Forecast


   GMZ005-090300-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  1055 AM EDT Fri May 8 2026      .SYNOPSIS...A series of weak high pressure systems in the west-  central North Atlantic will support light to gentle, mainly  southeasterly breezes over the next several days. Strong upper-  level ridging across the Gulf eastward to the Bahamas will also  yield near- nil rain and thunder chances through the weekend. As a  weak frontal boundary approaches the Florida Keys early next  week, there may be a brief slight uptick in rain and thunder  chances.    The Approximate Shoreward Edge of the Gulf Stream as of May 05...    23 NM South of Dry Tortugas Light...on Loggerhead Key.  13 NM South of Cosgrove Shoal Light...off the Marquesas Keys.  12 NM South of Sand Key Light...off Key West.  14 NM South of Looe Key...off Big Pine Key.  14 NM Southeast of Sombrero Key Light...off Marathon.  10 NM Southeast of Alligator Reef Light...off Islamorada.  8 NM Southeast of Molasses Reef Light...off Key Largo.  7 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.    $$
   GMZ052>055-072>075-090300-  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-  1055 AM EDT Fri May 8 2026    THIS AFTERNOON  East to southeast winds 5 to 10 knots, becoming  variable. Seas 1 to 2 feet. Wave Detail: East 1 foot at 3  seconds.  TONIGHT  East to southeast winds 5 to 10 knots, becoming  southeast and increasing to 10 to 15 knots. Seas 1 to 2 feet,  building to around 2 feet. Wave Detail: East 2 feet at 3 seconds.  SATURDAY  Southeast winds 10 to 15 knots. Seas around 2 feet.  Wave Detail: East to southeast 2 feet at 4 seconds. Wave Detail:  East to southeast 2 feet at 4 seconds.  SATURDAY NIGHT  East to southeast winds 10 to 15 knots. Seas  2 to 3 feet. A slight chance of showers.  SUNDAY  Southeast winds 10 to 15 knots, decreasing to near 10  knots. Seas 2 to 3 feet, subsiding to around 2 feet. A slight  chance of showers.  SUNDAY NIGHT  East to southeast winds near 10 knots, increasing  to 10 to 15 knots. Seas around 2 feet, building to 2 to 3 feet. A  slight chance of showers.  MONDAY  Southeast winds 10 to 15 knots, becoming variable and  decreasing to 5 to 10 knots. Seas 2 to 3 feet, subsiding to 1 to 2  feet. A slight chance of showers.  MONDAY NIGHT  Variable winds near 5 knots. Seas around 1 foot.  A slight chance of showers.  TUESDAY  Variable winds near 5 knots, becoming northwest to  north. Seas around 1 foot. A slight chance of showers and  thunderstorms.  TUESDAY NIGHT  North to northeast winds 5 to 10 knots. Seas  1 to 2 feet.    $$