GMZ005-240830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
418 PM EDT Sat May 23 2026
.SYNOPSIS...High pressure remains parked east of Bermuda. This
high will support gentle to moderate east to southeast breezes
this evening, becoming moderate to fresh overnight. A second high
pressure system will reinforce the first on Sunday, supporting
fresh east to southeast breezes through Tuesday night. Breezes
will noticeably slacken and veer to the southeast to south as the
high slides eastward and weakens by mid- week.
The Approximate Shoreward Edge of the Gulf Stream as of May 22...
22 NM South of Dry Tortugas Light...on Loggerhead Key.
9 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
8 NM South of Sand Key Light...off Key West.
8 NM South of Looe Key...off Big Pine Key.
6 NM Southeast of Sombrero Key Light...off Marathon.
4 NM Southeast of Alligator Reef Light...off Islamorada.
1 NM Southeast of Molasses Reef Light...off Key Largo.
1 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.
$$
GMZ033-034-240830- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 418 PM EDT Sat May 23 2026 TONIGHT East to southeast winds 10 to 15 knots, increasing to near 15 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 4 seconds. A chance of showers with a slight chance of thunderstorms. SUNDAY East to southeast winds near 15 knots. Seas 2 to 3 feet. Wave Detail: East to southeast 2 feet at 4 seconds. A chance of showers with a slight chance of thunderstorms. SUNDAY NIGHT East to southeast winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 4 seconds. A chance of showers with a slight chance of thunderstorms. MONDAY THROUGH TUESDAY East to southeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A slight chance of showers and thunderstorms. TUESDAY NIGHT East to southeast winds 15 to 20 knots, decreasing to near 15 knots. Seas 3 to 5 feet, occasionally to 6 feet, subsiding to 2 to 4 feet, occasionally to 5 feet. A chance of showers and thunderstorms. WEDNESDAY Southeast winds near 15 knots, decreasing to 10 to 15 knots. Seas subsiding to 2 to 3 feet. A chance of thunderstorms. A chance of showers. WEDNESDAY NIGHT Southeast winds near 10 knots. Seas around 2 feet, subsiding to 1 to 2 feet. A chance of showers and thunderstorms. THURSDAY Southeast to south winds 5 to 10 knots. Seas 1 to 2 feet, subsiding to around 1 foot. A chance of showers and thunderstorms. THURSDAY NIGHT Southeast to south winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. $$
GMZ033-034-240830- 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 PM EDT Sat May 23 2026 TONIGHT East to southeast winds 10 to 15 knots, increasing to near 15 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 4 seconds. A chance of showers with a slight chance of thunderstorms. SUNDAY East to southeast winds near 15 knots. Seas 2 to 3 feet. Wave Detail: East to southeast 2 feet at 4 seconds. A chance of showers with a slight chance of thunderstorms. SUNDAY NIGHT East to southeast winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 4 seconds. A chance of showers with a slight chance of thunderstorms. MONDAY THROUGH TUESDAY East to southeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A slight chance of showers and thunderstorms. TUESDAY NIGHT East to southeast winds 15 to 20 knots, decreasing to near 15 knots. Seas 3 to 5 feet, occasionally to 6 feet, subsiding to 2 to 4 feet, occasionally to 5 feet. A chance of showers and thunderstorms. WEDNESDAY Southeast winds near 15 knots, decreasing to 10 to 15 knots. Seas subsiding to 2 to 3 feet. A chance of thunderstorms. A chance of showers. WEDNESDAY NIGHT Southeast winds near 10 knots. Seas around 2 feet, subsiding to 1 to 2 feet. A chance of showers and thunderstorms. THURSDAY Southeast to south winds 5 to 10 knots. Seas 1 to 2 feet, subsiding to around 1 foot. A chance of showers and thunderstorms. THURSDAY NIGHT Southeast to south winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. $$