GMZ005-102130-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
418 AM EST Tue Nov 10 2026
.SYNOPSIS...
A robust high pressure system over the Southeast United States
will begin shifting out across the Atlantic today and gradually
settle northeast of the Bahamas by Wednesday. This will allow for
east to southeast breezes to undergo a slow slackening process
through Wednesday night. Thereafter, a strong cold front will
steadily march towards the Keys and is expected push through the
Keys marine zones on Friday morning. As a result breezes will
gradually clock around the compass and freshen Thursday through
Friday morning. A period of fresh to strong breezes is possible
Friday night into Saturday morning before briefly slackening. A
reinforcing front on Sunday will bring back the potential for a
prolonged period of fresh to strong breezes.
The Approximate Shoreward Edge of the Gulf Stream as of November 8,
2026...
30 NM south of Dry Tortugas Light, on Loggerhead Key
38 NM south of Cosgrove Shoal Light, off the Marquesas Keys
46 NM south of Sand Key Light, off Key West
20 NM south of Looe Key, off Big Pine Key
15 NM southeast of Sombrero Key Light, off Marathon
10 NM south of Alligator Reef Light, off Islamorada
8 NM southeast of Molasses Reef Light, off Key Largo
5 NM east 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.
$$
GMZ033-034-102130- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 418 AM EST Tue Nov 10 2026 TODAY East to southeast winds near 10 knots. Seas 1 to 2 feet. Wave Detail: East 1 foot at 3 seconds and northwest 1 foot at 4 seconds. A slight chance of showers. TONIGHT East to southeast winds near 10 knots. Seas 1 to 2 feet. Wave Detail: East 1 foot at 3 seconds. A slight chance of showers. WEDNESDAY East to southeast winds 5 to 10 knots, decreasing to near 5 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 3 seconds. A chance of showers. WEDNESDAY NIGHT East to southeast winds near 5 knots, becoming south to southwest 5 to 10 knots. Seas 1 foot or less, building to around 1 foot. A chance of showers with a slight chance of thunderstorms. THURSDAY Southwest to west winds near 10 knots, becoming west to northwest 10 to 15 knots. Seas around 1 foot, building to 1 to 2 feet. A chance of showers with a slight chance of thunderstorms. THURSDAY NIGHT Northwest winds 10 to 15 knots, increasing to 15 to 20 knots late. Seas 1 to 2 feet, building to 2 to 4 feet, occasionally to 5 feet. A chance of showers with a slight chance of thunderstorms. FRIDAY Northwest to north winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A chance of showers. FRIDAY NIGHT North winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. SATURDAY North to northeast winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. SATURDAY NIGHT Northeast winds near 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. $$
GMZ033-034-102130- 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- 418 AM EST Tue Nov 10 2026 TODAY East to southeast winds near 10 knots. Seas 1 to 2 feet. Wave Detail: East 1 foot at 3 seconds and northwest 1 foot at 4 seconds. A slight chance of showers. TONIGHT East to southeast winds near 10 knots. Seas 1 to 2 feet. Wave Detail: East 1 foot at 3 seconds. A slight chance of showers. WEDNESDAY East to southeast winds 5 to 10 knots, decreasing to near 5 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 3 seconds. A chance of showers. WEDNESDAY NIGHT East to southeast winds near 5 knots, becoming south to southwest 5 to 10 knots. Seas 1 foot or less, building to around 1 foot. A chance of showers with a slight chance of thunderstorms. THURSDAY Southwest to west winds near 10 knots, becoming west to northwest 10 to 15 knots. Seas around 1 foot, building to 1 to 2 feet. A chance of showers with a slight chance of thunderstorms. THURSDAY NIGHT Northwest winds 10 to 15 knots, increasing to 15 to 20 knots late. Seas 1 to 2 feet, building to 2 to 4 feet, occasionally to 5 feet. A chance of showers with a slight chance of thunderstorms. FRIDAY Northwest to north winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A chance of showers. FRIDAY NIGHT North winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. SATURDAY North to northeast winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. SATURDAY NIGHT Northeast winds near 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. $$