NWS Marine Forecast


   GMZ005-200900-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  454 PM EDT Sun Jul 19 2026      .SYNOPSIS...At 5:00 p.m. EDT, Tropical Depression Two was  centered over the northeastern Gulf of America, and is expected to  move slowly northwestward or north-northwestward during the next  day or two, followed by a turn toward the west. On the forecast  track, the depression will move near or along the northern Gulf  coast during the next several days. An Atlantic ridge of high  pressure will extend to the Florida Peninsula for the next several  days. Gentle to moderate south to southeasterly breezes are  expected to prevail across Florida Keys coastal waters from this  afternoon through Thursday.    The Approximate Shoreward Edge of the Gulf Stream as of July 17,  2026...    49 NM South of Dry Tortugas Light...on Loggerhead Key.  51 NM South of Cosgrove Shoal Light...off the Marquesas Keys.  38 NM South of Sand Key Light...off Key West.  22 NM South of Looe Key...off Big Pine Key.  13 NM South of Sombrero Key Light...off Marathon.  6 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.    $$
   GMZ033-034-200900-  Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM  out and beyond 5 fathoms-  Gulf of America including Dry Tortugas and Rebecca Shoal Channel-  454 PM EDT Sun Jul 19 2026    TONIGHT  South to southwest winds 10 to 15 knots. Seas 2 to  3 feet. Wave Detail: South 2 feet at 4 seconds. A chance of  showers with a slight chance of thunderstorms.  MONDAY  South to southwest winds 10 to 15 knots. Seas 2 to  3 feet. Wave Detail: South to southwest 2 feet at 4 seconds. A  slight chance of showers and thunderstorms.  MONDAY NIGHT  South winds 10 to 15 knots. Seas 1 to 2 feet.  Wave Detail: South to southwest 2 feet at 3 seconds. A slight  chance of showers and thunderstorms.  TUESDAY  Southeast to south winds 10 to 15 knots, becoming 5 to  10 knots in the afternoon. Seas 1 to 2 feet.  TUESDAY NIGHT  Southeast winds 5 to 10 knots. Seas 1 to 2 feet.  WEDNESDAY  East to southeast winds 5 to 10 knots. Seas 1 to  2 feet. A slight chance of showers and thunderstorms.  WEDNESDAY NIGHT  East to southeast winds 5 to 10 knots. Seas  around 1 foot.  THURSDAY  East winds 5 to 10 knots. Seas around 1 foot. A  slight chance of showers.  THURSDAY NIGHT  East winds 5 to 10 knots. Seas around 1 foot. A  slight chance of showers and thunderstorms.  FRIDAY  East winds 5 to 10 knots. Seas around 1 foot.  FRIDAY NIGHT  East to southeast winds 5 to 10 knots. Seas  around 1 foot. A slight chance of showers and thunderstorms.    $$