GMZ005-091430-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
919 PM EST Sun Nov 8 2026
.SYNOPSIS...
A robust high pressure system over the southeastern United States
will spread eastward over the next few days. As a result, light
to gentle northeasterly breezes will shift to the northeast to
east and modestly freshen early this week. As the high slides
further southeastward into the west-central North Atlantic,
breezes will clock around to the east and modestly slacken by mid
week. A strong cold front is expected push through the Keys marine
zones late Thursday night or Friday morning, with breezes backing
to the northwest and freshening in its wake.
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.
$$
GMZ033-034-091430- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 919 PM EST Sun Nov 8 2026 OVERNIGHT North to northeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Northwest to north 2 feet at 5 seconds. MONDAY Northeast winds 5 to 10 knots. Seas around 1 foot. Wave Detail: North to northeast 1 foot at 4 seconds. A slight chance of showers. MONDAY NIGHT Northeast to east winds 5 to 10 knots, increasing to 10 to 15 knots. Seas 1 to 2 feet, building to around 2 feet. Wave Detail: North 1 foot at 4 seconds. A slight chance of showers. TUESDAY East to southeast winds 10 to 15 knots, decreasing to near 10 knots. Seas around 2 feet, subsiding to 1 to 2 feet. A slight chance of showers. TUESDAY NIGHT East to southeast winds near 10 knots, decreasing to 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers. WEDNESDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers. WEDNESDAY NIGHT East to southeast winds near 5 knots, becoming south to southwest. Seas 1 foot or less. A slight chance of showers and thunderstorms. THURSDAY Southwest to west winds 5 to 10 knots, increasing to 10 to 15 knots. Seas around 1 foot, building to 1 to 2 feet. A chance of showers. THURSDAY NIGHT West winds near 10 to 15 knots, becoming west to northwest and increasing to 15 to 20 knots. Seas around 2 feet, building to 2 to 4 feet, occasionally to 5 feet. A chance of showers with a slight chance of thunderstorms. FRIDAY Northwest winds 15 to 20 knots. Seas building to 4 to 6 feet, occasionally to 8 feet in the afternoon. A slight chance of showers. FRIDAY NIGHT Northwest to north winds near 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. $$
GMZ033-034-091430- 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- 919 PM EST Sun Nov 8 2026 OVERNIGHT North to northeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Northwest to north 2 feet at 5 seconds. MONDAY Northeast winds 5 to 10 knots. Seas around 1 foot. Wave Detail: North to northeast 1 foot at 4 seconds. A slight chance of showers. MONDAY NIGHT Northeast to east winds 5 to 10 knots, increasing to 10 to 15 knots. Seas 1 to 2 feet, building to around 2 feet. Wave Detail: North 1 foot at 4 seconds. A slight chance of showers. TUESDAY East to southeast winds 10 to 15 knots, decreasing to near 10 knots. Seas around 2 feet, subsiding to 1 to 2 feet. A slight chance of showers. TUESDAY NIGHT East to southeast winds near 10 knots, decreasing to 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers. WEDNESDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers. WEDNESDAY NIGHT East to southeast winds near 5 knots, becoming south to southwest. Seas 1 foot or less. A slight chance of showers and thunderstorms. THURSDAY Southwest to west winds 5 to 10 knots, increasing to 10 to 15 knots. Seas around 1 foot, building to 1 to 2 feet. A chance of showers. THURSDAY NIGHT West winds near 10 to 15 knots, becoming west to northwest and increasing to 15 to 20 knots. Seas around 2 feet, building to 2 to 4 feet, occasionally to 5 feet. A chance of showers with a slight chance of thunderstorms. FRIDAY Northwest winds 15 to 20 knots. Seas building to 4 to 6 feet, occasionally to 8 feet in the afternoon. A slight chance of showers. FRIDAY NIGHT Northwest to north winds near 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. $$