NWS Marine Forecast

   GMZ005-050230-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  1024 AM EDT Sat Oct 4 2025      .SYNOPSIS...A weak area of low pressure located near the central  and northwestern Bahamas will act to weaken the pressure gradient  briefly across the Florida Keys. This will result in slackening  breezes veering from the northeast to the southeast through  Sunday. This system is expected to drift west- northwestward  across the northwestern Bahamas and toward southern Florida during  the next couple of days. As it lifts north and northwest of the  Keys, high pressure across the Atlantic will build back in  resulting in freshening northeast to east breezes.    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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   GMZ052>055-072>075-050230-  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-  1024 AM EDT Sat Oct 4 2025    THIS AFTERNOON  Northeast to east winds 10 to 15 knots. Seas 3  to 5 feet, occasionally to 6 feet, subsiding to 2 to 4 feet,  occasionally to 5 feet. Wave Detail: Northeast to east 4 feet at 6  seconds. Winds and seas higher in and around scattered showers  and isolated thunderstorms.  TONIGHT  Northeast to east winds 10 to 15 knots, becoming  southeast to south near 10 knots. Seas subsiding to 2 to 3 feet.  Wave Detail: Northeast to east 3 feet at 6 seconds. Winds and  seas higher in and around scattered showers and isolated  thunderstorms.  SUNDAY  South to southwest winds 5 to 10 knots, becoming east to  southeast and briefly decreasing to near 5 knots in the  afternoon. Seas 2 to 3 feet, subsiding to 1 to 2 feet. Wave  Detail: Northeast to east 2 feet at 6 seconds. Winds and seas  higher in and around scattered showers and isolated thunderstorms.  SUNDAY NIGHT  East to southeast winds increasing to near 10  knots. Seas 1 to 2 feet. Scattered showers and isolated  thunderstorms.  MONDAY  Northeast to east winds near 10 knots, increasing to 10  to 15 knots. Seas building to 2 to 3 feet. Scattered showers and  isolated thunderstorms.  MONDAY NIGHT  Northeast to east winds 10 to 15 knots. Seas 2 to  3 feet. Scattered showers and isolated thunderstorms.  TUESDAY  Northeast to east winds 10 to 15 knots, increasing to  15 to 20 knots. Seas building to 2 to 4 feet, occasionally to 5  feet. Scattered showers and isolated thunderstorms.  TUESDAY NIGHT  Northeast to east winds 15 to 20 knots. Seas 2  to 4 feet, occasionally to 5 feet. Scattered showers and isolated  thunderstorms.  WEDNESDAY  Northeast to east winds 15 to 20 knots. Seas 3 to  5 feet, occasionally to 6 feet. Scattered showers and isolated  thunderstorms.  WEDNESDAY NIGHT  Northeast to east winds decreasing to near 15  knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers  and isolated thunderstorms.    $$