NWS Marine Forecast

   GMZ005-041445-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  1038 PM EDT Fri Oct 3 2025      .SYNOPSIS...High pressure is slowly moving across the eastern  U.S., which will maintain a northeast wind across our waters.  This high will build into the western North Atlantic, leading to  freshening northeast to east breezes into Friday evening. Winds  will then briefly clock around towards the southeast for the  upcoming weekend and return from the east early next week. Another  period of moderate to fresh breezes is possible starting Monday  night. Expect an active weather pattern with winds and seas  expected to be higher in and around thunderstorms.    The Approximate Shoreward Edge of the Gulf Stream as of October  01...    42 NM South of Dry Tortugas Light...on Loggerhead Key.  33 NM South of Cosgrove Shoal Light...off the Marquesas Keys.  33 NM South of Sand Key Light...off Key West.  35 NM South of Looe Key...off Big Pine Key.  16 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.  5 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.    $$

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   GMZ031-041445-  Florida Bay including Barnes Sound, Blackwater Sound, and  Buttonwood Sound-  1038 PM EDT Fri Oct 3 2025    OVERNIGHT  Northeast winds near 15 knots, becoming north to  northeast 10 to 15 knots. Bay waters a moderate chop, becoming a  light to moderate chop. Scattered showers and isolated  thunderstorms.  SATURDAY  West to northwest winds near 10 knots, becoming south  to southwest in the afternoon. Bay waters a light chop. Scattered  showers and isolated thunderstorms.  SATURDAY NIGHT  South winds near 10 knots. Bay waters a light  chop. Scattered showers and isolated thunderstorms.  SUNDAY  South to southwest winds near 10 knots. Bay waters a  light chop. Scattered showers and isolated thunderstorms.  SUNDAY NIGHT  Southeast winds near 10 knots. Bay waters a light  chop. Scattered showers and isolated thunderstorms.  MONDAY  East to southeast winds near 10 knots. Bay waters a  light chop. Scattered showers and isolated thunderstorms.  MONDAY NIGHT  Northeast to east winds 10 to 15 knots. Bay  waters a light to moderate chop. Scattered showers and isolated  thunderstorms.  TUESDAY  Northeast to east winds near 15 knots. Bay waters a  moderate chop. Scattered showers and isolated thunderstorms.  TUESDAY NIGHT  Northeast to east winds 15 to 20 knots. Bay  waters choppy. Scattered showers and isolated thunderstorms.  WEDNESDAY  Northeast to east winds 15 to 20 knots. Bay waters  choppy. Scattered showers and isolated thunderstorms.  WEDNESDAY NIGHT  Northeast to east winds 15 to 20 knots. Bay  waters choppy. Scattered showers and isolated thunderstorms.    $$