NWS Marine Forecast



 Hazardous marine condition(s):
 Short Term Forecast
   GMZ005-150830-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  430 PM EDT Fri Aug 14 2026      .SYNOPSIS...High pressure in the central North Atlantic will  strengthen and build westward for the next several days. With the  associated ridge axis located north of the Florida Keys, this will  support gentle to moderate east to southeast breezes for the  marine zones through Sunday night. A weak frontal boundary will  stall over the Florida Peninsula for early next week. This will  disrupt the ridge's influence on the Keys coastal waters. Breezes  will respond, becoming light to gentle.    The Approximate Shoreward Edge of the Gulf Stream as of  August 13, 2026...    38 NM South of Dry Tortugas Light...on Loggerhead Key.  20 NM South of Cosgrove Shoal Light...off the Marquesas Keys.  17 NM South of Sand Key Light...off Key West.  21 NM South of Looe Key...off Big Pine Key.  18 NM Southeast of Sombrero Key Light...off Marathon.  7 NM Southeast of Alligator Reef Light...off Islamorada.  7 NM Southeast of Molasses Reef Light...off Key Largo.  2 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.    $$
   GMZ033-034-150830-  Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM  out and beyond 5 fathoms-  Gulf of America including Dry Tortugas and Rebecca Shoal Channel-  430 PM EDT Fri Aug 14 2026    TONIGHT  East winds 10 to 15 knots, becoming east to southeast.  Seas 1 to 2 feet, building to 2 to 3 feet. Wave Detail: East 2  feet at 4 seconds. Showers likely with a chance of thunderstorms.  Winds stronger and seas higher in and around showers and  thunderstorms.  SATURDAY  East to southeast winds 10 to 15 knots, decreasing to  near 10 knots. Seas 2 to 3 feet, subsiding to 1 to 2 feet. Wave  Detail: East to southeast 2 feet at 4 seconds. A chance of showers  and thunderstorms.  SATURDAY NIGHT  East to southeast winds 10 to 15 knots,  increasing to near 15 knots. Seas around 2 feet, building to 2 to  3 feet. Wave Detail: East to southeast 2 feet at 4 seconds. A  slight chance of showers and thunderstorms.  SUNDAY  East winds 10 to 15 knots, decreasing to near 10 knots.  Seas 2 to 3 feet, subsiding to 1 to 3 feet.  SUNDAY NIGHT  East winds near 10 knots. Seas 1 to 2 feet.  MONDAY  Northeast to east winds 5 to 10 knots, becoming variable  near 5 knots. Seas 1 to 2 feet.  MONDAY NIGHT  North to northeast winds near 5 knots. Seas  1 foot or less.  TUESDAY  North winds near 5 knots. Seas around 1 foot.  TUESDAY NIGHT  Northwest to north winds near 5 knots. Seas  around 1 foot.  WEDNESDAY  Northwest to north winds near 5 knots. Seas around  1 foot. A slight chance of showers.  WEDNESDAY NIGHT  North winds near 5 knots. Seas around 1 foot.  A slight chance of showers and thunderstorms.    $$