NWS Marine Forecast



 Hazardous marine condition(s):
 Short Term Forecast
   GMZ005-301445-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  1042 PM EDT Sat Aug 29 2026      .SYNOPSIS...  The western periphery of an Atlantic high is expected to maintain  control of the Keys for the next several days. This will continue  to promote peaking and lulling breezes. The direction will also  shift over the coming days with east to southeasterly breezes  overnight and in the morning with northeast to east breezes late  afternoon and evening. In addition, the overall flow will keep  deep moisture in place across the region with daily chances of  showers and thunderstorms. Locally hazardous winds and seas are  expected in the vicinity of thunderstorm activity.    The Approximate Shoreward Edge of the Gulf Stream as of August 26,  2026...    32 NM south of Dry Tortugas Light, on Loggerhead Key  9 NM south-southeast of Cosgrove Shoal Light, off the Marquesas Keys  7 NM south-southeast of Sand Key Light, off Key West  6 NM south-southeast of Looe Key, off Big Pine Key  7 NM south-southeast of Sombrero Key Light, off Marathon  4 NM southeast of Alligator Reef Light, off Islamorada  1 NM west-northwest of Molasses Reef Light, off Key Largo  1 NM east-southeast of Carysfort Reef Light, off Ocean Reef    Gulf Stream Information Courtesy of the Naval Oceanographic  Office.    $$
   GMZ033-034-301445-  Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM  out and beyond 5 fathoms-  Gulf of America including Dry Tortugas and Rebecca Shoal Channel-  1042 PM EDT Sat Aug 29 2026    OVERNIGHT  Northeast to east winds near 10 knots, becoming east  to southeast and increasing to 10 to 15 knots. Seas 1 to 2 feet.  Wave Detail: East to southeast 2 feet at 4 seconds. Showers likely  with a chance of thunderstorms.  SUNDAY  East to southeast winds 5 to 10 knots. Seas 1 to  2 feet. Wave Detail: East to southeast 2 feet at 4 seconds.  Showers likely with a chance of thunderstorms.  SUNDAY NIGHT  East winds 10 to 15 knots. Seas 1 to 2 feet. Wave  Detail: East to southeast 2 feet at 3 seconds. A chance of  showers and thunderstorms.  MONDAY  East winds 5 to 10 knots. Seas around 1 foot. A chance  of showers and thunderstorms.  MONDAY NIGHT  East winds 10 to 15 knots. Seas 1 to 2 feet. A  chance of showers and thunderstorms.  TUESDAY  East winds 5 to 10 knots. Seas 1 to 2 feet. Showers  likely with a chance of thunderstorms.  TUESDAY NIGHT  East winds 5 to 10 knots. Seas around 1 foot.  Showers likely with a chance of thunderstorms.  WEDNESDAY  East winds 5 to 10 knots. Seas around 1 foot.  Showers and thunderstorms likely.  WEDNESDAY NIGHT  East winds 5 to 10 knots. Seas around 1 foot.  Showers and thunderstorms likely.  THURSDAY  East winds 5 to 10 knots. Seas around 1 foot.  Thunderstorms likely. Showers.  THURSDAY NIGHT  East winds 5 to 10 knots, becoming southeast.  Seas 1 to 2 feet. Showers likely with a chance of thunderstorms.    $$