NWS Marine Forecast



 Hazardous marine condition(s):
 Hazardous Weather Outlook
   GMZ005-271430-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  1024 PM EDT Thu Jun 26 2025      .SYNOPSIS...An upper level low centered near the East Coast of  Florida will lift northward and weaken by Friday. Until it does,  enhanced rain and thunder chances are expected across the Keys  marine zones. Broad surface ridging will rebuild over the Atlantic  and support gentle to moderate east to southeasterly breezes  across Florida Keys waters. A Saharan Air Layer will limit shower  coverage over the weekend, but bursts of showers or thunderstorms  cannot be ruled out.    The Approximate Shoreward Edge of the Gulf Stream as of June 22...    16 NM Southwest of Dry Tortugas Light...on Loggerhead Key.  21 NM South of Cosgrove Shoal Light...off the Marquesas Keys.  28 NM South of Sand Key Light...off Key West.  36 NM South of Looe Key...off Big Pine Key.  22 NM South of Sombrero Key Light...off Marathon.  12 NM Southeast of Alligator Reef Light...off Islamorada.  6 NM Southeast of Molasses Reef Light...off Key Largo.  3 NM East 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.    $$
   GMZ031-271430-  Florida Bay including Barnes Sound, Blackwater Sound, and  Buttonwood Sound-  1024 PM EDT Thu Jun 26 2025    OVERNIGHT  East to southeast winds 10 to 15 knots, becoming  southeast near 10 knots. Bay waters a light to moderate chop,  becoming a light chop. Scattered showers and isolated  thunderstorms.  FRIDAY  East to southeast winds 5 to 10 knots. Bay waters  smooth to a light chop. Scattered showers and isolated  thunderstorms.  FRIDAY NIGHT  East to southeast winds 5 to 10 knots. Bay waters  smooth to a light chop. Isolated showers and thunderstorms.  SATURDAY  East to southeast winds 5 to 10 knots. Bay waters  smooth to a light chop. Scattered showers and isolated  thunderstorms.  SATURDAY NIGHT  East winds 5 to 10 knots. Bay waters smooth to  a light chop. Isolated showers and thunderstorms.  SUNDAY  East to southeast winds near 10 knots. Bay waters a  light chop. Scattered showers and isolated thunderstorms.  SUNDAY NIGHT  East to southeast winds 5 to 10 knots. Bay waters  smooth to a light chop. Scattered showers and isolated  thunderstorms.  MONDAY  East to southeast winds near 10 knots. Bay waters a  light chop. Scattered showers and isolated thunderstorms.  MONDAY NIGHT  East to southeast winds 5 to 10 knots. Bay waters  smooth to a light chop. Scattered showers and isolated  thunderstorms.  TUESDAY  Southeast winds near 10 knots. Bay waters a light  chop. Scattered showers and isolated thunderstorms.  TUESDAY NIGHT  Southeast winds 5 to 10 knots. Bay waters smooth  to a light chop. Scattered showers and isolated thunderstorms.    $$