NWS Marine Forecast

   GMZ005-041430-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  1017 PM EDT Fri Jul 3 2026      .SYNOPSIS...Generally light east to southeast breezes will become  variable at times across the Keys waters. Breezes will lull  during the afternoons and peak overnight. Any active weather over  the marine zones will largely be limited to possible afternoon  nearshore cloudlines interacting with any boundaries pushing off  the South Florida Mainland through the evening hours. High  pressure will gradually build back across the Florida Keys coastal  waters over the weekend. This will support generally light to  gentle east to southeast breezes resuming across the Keys marine  zones.    The Approximate Shoreward Edge of the Gulf Stream as of June 28,  2026...    33 NM South of Dry Tortugas Light...on Loggerhead Key.  8 NM South of Cosgrove Shoal Light...off the Marquesas Keys.  7 NM South of Sand Key Light...off Key West.  11 NM South of Looe Key...off Big Pine Key.  12 NM Southeast of Sombrero Key Light...off Marathon.  7 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.    $$

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   GMZ031-041430-  Florida Bay including Barnes Sound, Blackwater Sound, and  Buttonwood Sound-  1017 PM EDT Fri Jul 3 2026    OVERNIGHT  East to southeast winds 5 to 10 knots. Bay waters  smooth to a light chop. A chance of showers and thunderstorms.  SATURDAY  Southeast to south winds near 5 knots. Bay waters  smooth. A chance of showers and thunderstorms.  SATURDAY NIGHT  Southeast winds 5 to 10 knots. Bay waters  smooth to a light chop. A slight chance of showers and  thunderstorms.  SUNDAY  Southeast winds near 5 knots. Bay waters smooth. A  slight chance of showers and thunderstorms.  SUNDAY NIGHT  Southeast winds near 5 knots, increasing to 5 to  10 knots. Bay waters smooth, becoming smooth to a light chop. A  slight chance of showers and thunderstorms.  MONDAY  Southeast winds 5 to 10 knots. Bay waters smooth to a  light chop. A chance of showers and thunderstorms.  MONDAY NIGHT  Southeast winds 5 to 10 knots. Bay waters smooth  to a light chop.  TUESDAY  East to southeast winds 5 to 10 knots. Bay waters  smooth to a light chop. A chance of showers and thunderstorms.  TUESDAY NIGHT  East to southeast winds 5 to 10 knots. Bay  waters smooth to a light chop. A slight chance of showers.  WEDNESDAY  East to southeast winds 5 to 10 knots. Bay waters  smooth to a light chop. A slight chance of showers and  thunderstorms.  WEDNESDAY NIGHT  East to southeast winds 10 to 15 knots. Bay  waters a light to moderate chop. A slight chance of showers.    $$