GMZ005-152130-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
413 AM EST Sun Nov 15 2026
.SYNOPSIS...
A high pressure across the Mississippi River Valley will begin
sliding east and southeast. This will initially result in a
lessing of the pressure gradient and breezes will slacken today.
As the high settle along the Eastern Seaboard towards Monday, it
will gradually strengthen. This will tighten the pressure gradient
once again and winds will slowly freshen, starting Sunday night.
Small Craft Exercise Caution and hazard headlines may be required
as early as tomorrow night. These fresh to strong winds will
prevail through most, if not all, of next week with peak rain
chances (50% to 70%) on Tuesday and Wednesday.
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.
$$
GMZ033-034-152130- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 413 AM EST Sun Nov 15 2026 TODAY North to northeast winds near 15 knots, decreasing to 10 to 15 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet, subsiding to 2 to 3 feet. Wave Detail: North 3 feet at 5 seconds. TONIGHT Northeast winds 10 to 15 knots, becoming northeast to east 15 to 20 knots after midnight. Seas 2 to 3 feet, building to 3 to 4 feet, occasionally to 5 feet. Wave Detail: North to northeast 3 feet at 5 seconds. MONDAY Northeast to east winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast to east 4 feet at 5 seconds and northwest 1 foot at 5 seconds. A slight chance of showers. MONDAY NIGHT Northeast to east winds 15 to 20 knots, sharply increasing to 20 to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet, building to 4 to 6 feet, occasionally to 8 feet. A slight chance of showers. TUESDAY Northeast to east winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of showers with a slight chance of thunderstorms. TUESDAY NIGHT Northeast to east winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of showers with a slight chance of thunderstorms. WEDNESDAY Northeast to east winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of showers. WEDNESDAY NIGHT Northeast winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. A slight chance of showers and thunderstorms. THURSDAY Northeast winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. A slight chance of showers. THURSDAY NIGHT Northeast winds 20 to 25 knots. Seas 4 to 7 feet, occasionally to 9 feet. A slight chance of showers. $$
GMZ033-034-152130- 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- 413 AM EST Sun Nov 15 2026 TODAY North to northeast winds near 15 knots, decreasing to 10 to 15 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet, subsiding to 2 to 3 feet. Wave Detail: North 3 feet at 5 seconds. TONIGHT Northeast winds 10 to 15 knots, becoming northeast to east 15 to 20 knots after midnight. Seas 2 to 3 feet, building to 3 to 4 feet, occasionally to 5 feet. Wave Detail: North to northeast 3 feet at 5 seconds. MONDAY Northeast to east winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast to east 4 feet at 5 seconds and northwest 1 foot at 5 seconds. A slight chance of showers. MONDAY NIGHT Northeast to east winds 15 to 20 knots, sharply increasing to 20 to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet, building to 4 to 6 feet, occasionally to 8 feet. A slight chance of showers. TUESDAY Northeast to east winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of showers with a slight chance of thunderstorms. TUESDAY NIGHT Northeast to east winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of showers with a slight chance of thunderstorms. WEDNESDAY Northeast to east winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of showers. WEDNESDAY NIGHT Northeast winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. A slight chance of showers and thunderstorms. THURSDAY Northeast winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. A slight chance of showers. THURSDAY NIGHT Northeast winds 20 to 25 knots. Seas 4 to 7 feet, occasionally to 9 feet. A slight chance of showers. $$