GMZ005-111415-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
910 PM EST Tue Nov 10 2026
.SYNOPSIS...
High pressure will gradually track through the southeastern U.S.
and will move into the Bahamas and western North Atlantic over the
next couple of days. 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 to 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.
$$
GMZ033-034-111415- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 910 PM EST Tue Nov 10 2026 OVERNIGHT East to southeast winds near 10 knots, decreasing to 5 to 10 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 3 seconds. A slight chance of showers. WEDNESDAY East to southeast winds 5 to 10 knots, decreasing to near 5 knots. Seas around 1 foot. Wave Detail: East 1 foot at 3 seconds. A slight chance of showers. WEDNESDAY NIGHT Southeast winds near 5 knots, becoming south to southwest. Seas around 1 foot. A slight chance of showers. THURSDAY Southwest to west winds 5 to 10 knots, becoming west to northwest. Seas around 1 foot. A slight chance of showers. THURSDAY NIGHT Northwest winds near 10 knots, increasing to 10 to 15 knots. Seas around 1 foot, building to 1 to 2 feet. A slight chance of showers. FRIDAY Northwest to north winds near 15 knots, increasing to 15 to 20 knots. Seas around 2 feet, building to 2 to 4 feet, occasionally to 5 feet. A slight chance of showers. FRIDAY NIGHT North winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. SATURDAY North to northeast winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. SATURDAY NIGHT Northeast winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. SUNDAY Northeast to east winds near 15 knots. Seas 2 to 3 feet. A slight chance of showers. SUNDAY NIGHT East winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A slight chance of showers. $$
GMZ033-034-111415- 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- 910 PM EST Tue Nov 10 2026 OVERNIGHT East to southeast winds near 10 knots, decreasing to 5 to 10 knots. Seas around 1 foot. Wave Detail: East to southeast 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 1 foot at 3 seconds. A slight chance of showers. WEDNESDAY NIGHT Southeast winds near 5 knots, becoming south to southwest. Seas around 1 foot. A slight chance of showers. THURSDAY Southwest to west winds 5 to 10 knots, becoming west to northwest. Seas around 1 foot. A slight chance of showers. THURSDAY NIGHT Northwest winds near 10 knots, increasing to 10 to 15 knots. Seas around 1 foot, building to 1 to 2 feet. A slight chance of showers. FRIDAY Northwest to north winds near 15 knots, increasing to 15 to 20 knots. Seas around 2 feet, building to 2 to 4 feet, occasionally to 5 feet. A slight chance of showers. FRIDAY NIGHT North winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. SATURDAY North to northeast winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. SATURDAY NIGHT Northeast winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. SUNDAY Northeast to east winds near 15 knots. Seas 2 to 3 feet. A slight chance of showers. SUNDAY NIGHT East winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A slight chance of showers. $$