GMZ005-120230-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1027 AM EDT Wed Mar 11 2026
.SYNOPSIS...High pressure is centered to the east of Bermuda with
the western periphery of this ridge extending west into Florida
and the Gulf. The high will retreat farther out into the Atlantic
through early Thursday shifting breezes to the southeast to south.
A cold front will steadily push southeastward into South Florida
through the remainder of the week and the weekend. Breezes will
shift to the south to southwest and eventually become variable
sometime late Thursday/Thursday night. Since the front isn't
expected to reach the Keys, high pressure regains control and thus
returns breezes back to the east to southeast.
The Approximate Shoreward Edge of the Gulf Stream as of March 7...
55 NM South of Dry Tortugas Light...on Loggerhead Key.
15 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
7 NM South of Sand Key Light...off Key West.
8 NM South of Looe Key...off Big Pine Key.
10 NM Southeast of Sombrero Key Light...off Marathon.
8 NM Southeast of Alligator Reef Light...off Islamorada.
5 NM Southeast of Molasses Reef Light...off Key Largo.
3 NM Southeast of Carysfort Reef Light...off Ocean Reef.
Gulf Stream Information Courtesy of the National Weather Service in
Key West based on products from NASA SPoRT and RTOFS.
$$
GMZ033-034-120230- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 1027 AM EDT Wed Mar 11 2026 THIS AFTERNOON East to southeast winds near 15 knots. Seas 2 to 3 feet. Wave Detail: East to southeast 3 feet at 3 seconds. TONIGHT East to southeast winds near 15 knots, becoming southeast and decreasing to 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East to southeast 2 feet at 3 seconds. THURSDAY Southeast to south winds near 10 knots, becoming southwest in the afternoon. Seas 2 to 3 feet, subsiding to 1 to 2 feet. Wave Detail: Southeast 2 feet at 3 seconds. A slight chance of showers. THURSDAY NIGHT West to northwest winds 5 to 10 knots, becoming north to northeast after midnight. Seas around 1 foot. A chance of showers. FRIDAY Northeast to east winds near 10 knots, becoming east to southeast and decreasing to near 5 knots in the afternoon. Seas around 1 foot, building to 2 to 4 feet, occasionally to 5 feet due to northwest swell. A chance of showers. FRIDAY NIGHT East to southeast winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet due to northwest swell, subsiding to 1 to 3 feet. A chance of showers with a slight chance of thunderstorms. SATURDAY East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers with a slight chance of thunderstorms. SATURDAY NIGHT East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. SUNDAY Southeast to south winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. SUNDAY NIGHT Southeast to south winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. $$
GMZ033-034-120230- 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- 1027 AM EDT Wed Mar 11 2026 THIS AFTERNOON East to southeast winds near 15 knots. Seas 2 to 3 feet. Wave Detail: East to southeast 3 feet at 3 seconds. TONIGHT East to southeast winds near 15 knots, becoming southeast and decreasing to 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East to southeast 2 feet at 3 seconds. THURSDAY Southeast to south winds near 10 knots, becoming southwest in the afternoon. Seas 2 to 3 feet, subsiding to 1 to 2 feet. Wave Detail: Southeast 2 feet at 3 seconds. A slight chance of showers. THURSDAY NIGHT West to northwest winds 5 to 10 knots, becoming north to northeast after midnight. Seas around 1 foot. A chance of showers. FRIDAY Northeast to east winds near 10 knots, becoming east to southeast and decreasing to near 5 knots in the afternoon. Seas around 1 foot, building to 2 to 4 feet, occasionally to 5 feet due to northwest swell. A chance of showers. FRIDAY NIGHT East to southeast winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet due to northwest swell, subsiding to 1 to 3 feet. A chance of showers with a slight chance of thunderstorms. SATURDAY East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers with a slight chance of thunderstorms. SATURDAY NIGHT East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. SUNDAY Southeast to south winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. SUNDAY NIGHT Southeast to south winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. $$