GMZ005-110830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
424 PM EDT Thu Sep 10 2026
.SYNOPSIS...
Ridging across the southeastern United States and Florida will
maintain gentle to moderate east to southeasterly breezes. Expect
breezes to peak in the evening and overnight while lulling during
the day during the day. A series of lower level moisture swathes
will support periods of elevated rain and thunder chances through
the remainder of the 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.
$$
GMZ033-034-110830- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 424 PM EDT Thu Sep 10 2026 TONIGHT East to southeast winds near 10 knots. Seas 1 to 2 feet. Wave Detail: East 1 foot at 3 seconds. A chance of showers and thunderstorms. FRIDAY East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Southeast 1 foot at 3 seconds. A chance of showers and thunderstorms. FRIDAY NIGHT East to southeast winds near 10 knots, increasing to 10 to 15 knots. Seas 1 to 2 feet. Wave Detail: East 1 foot at 3 seconds. A chance of showers and thunderstorms. SATURDAY East to southeast winds near 10 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. SATURDAY NIGHT East to southeast winds 10 to 15 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. SUNDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. Showers likely with a chance of thunderstorms. SUNDAY NIGHT East winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. MONDAY East winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. MONDAY NIGHT Northeast to east winds 5 to 10 knots, becoming east 10 to 15 knots. Seas building to 1 to 2 feet. A chance of showers and thunderstorms. TUESDAY East winds near 10 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. TUESDAY NIGHT East winds 10 to 15 knots. Seas around 2 feet. Showers likely with a chance of thunderstorms. $$
GMZ033-034-110830- 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- 424 PM EDT Thu Sep 10 2026 TONIGHT East to southeast winds near 10 knots. Seas 1 to 2 feet. Wave Detail: East 1 foot at 3 seconds. A chance of showers and thunderstorms. FRIDAY East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Southeast 1 foot at 3 seconds. A chance of showers and thunderstorms. FRIDAY NIGHT East to southeast winds near 10 knots, increasing to 10 to 15 knots. Seas 1 to 2 feet. Wave Detail: East 1 foot at 3 seconds. A chance of showers and thunderstorms. SATURDAY East to southeast winds near 10 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. SATURDAY NIGHT East to southeast winds 10 to 15 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. SUNDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. Showers likely with a chance of thunderstorms. SUNDAY NIGHT East winds 5 to 10 knots. Seas around 1 foot. 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 Northeast to east winds 5 to 10 knots, becoming east 10 to 15 knots. Seas building to 1 to 2 feet. A chance of showers and thunderstorms. TUESDAY East winds near 10 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. TUESDAY NIGHT East winds 10 to 15 knots. Seas around 2 feet. Showers likely with a chance of thunderstorms. $$