NWS Marine Forecast



 Hazardous marine condition(s):
 Short Term Forecast
   GMZ005-082030-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  419 AM EDT Tue Sep 8 2026      .SYNOPSIS...  Florida Keys coastal waters will be in a broad nebulous pressure  pattern. This will lead to light and at times variable breezes  through early Wednesday. During the day on Wednesday, the western  extent of the Atlantic Ridge will begin building in, allowing  breezes to become more easterly and freshen to gentle to moderate.  Waves of low-level moisture pushing across the Keys will support  elevated rain and thunder chances through Tuesday, possibly  returning to near normal by mid week.    The Approximate Shoreward Edge of the Gulf Stream as of September  2, 2026...    34 NM south-southwest of Dry Tortugas Light, on Loggerhead Key  34 NM south-southeast of Cosgrove Shoal Light, off the Marquesas Keys  26 NM south-southeast of Sand Key Light, off Key West  21 NM south-southeast of Looe Key, off Big Pine Key  17 NM southeast of Sombrero Key Light, off Marathon  10 NM southeast of Alligator Reef Light, off Islamorada  6 NM east-southeast of Molasses Reef Light, off Key Largo  1 NM east-southeast of Carysfort Reef Light, off Ocean Reef    This data courtesy of the Naval Oceanographic Office.    $$
   GMZ033-034-082030-  Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM  out and beyond 5 fathoms-  Gulf of America including Dry Tortugas and Rebecca Shoal Channel-  419 AM EDT Tue Sep 8 2026    TODAY  Variable winds near 5 knots. Seas 1 foot or less. A  chance of showers with a slight chance of thunderstorms.  TONIGHT  East to southeast winds 5 to 10 knots. Seas 1 foot or  less. A chance of showers with a slight chance of thunderstorms.  WEDNESDAY  East winds 5 to 10 knots. Seas around 1 foot. Wave  Detail: East to southeast 1 foot at 2 seconds. A chance of showers  with a slight chance of thunderstorms.  WEDNESDAY NIGHT  East winds near 10 knots. Seas around 1 foot.  A chance of showers with a slight chance of thunderstorms.  THURSDAY  East to southeast winds 5 to 10 knots. Seas around  1 foot. A chance of showers with a slight chance of  thunderstorms.  THURSDAY NIGHT  East to southeast winds increasing to around 10  knots. Seas around 1 foot. A chance of showers with a slight  chance of thunderstorms.  FRIDAY  East to southeast winds 5 to 10 knots. Seas around  1 foot. A chance of showers with a slight chance of  thunderstorms.  FRIDAY NIGHT  East to southeast winds near 10 knots. Seas  around 1 foot. A chance of showers and thunderstorms.  SATURDAY  East to southeast winds 5 to 10 knots. Seas around  1 foot. A chance of showers and thunderstorms.  SATURDAY NIGHT  East winds near 10 knots. Seas 1 to 2 feet. A  chance of showers and thunderstorms.    $$