GMZ005-281430-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1017 PM EDT Fri Mar 27 2026
.SYNOPSIS...The axis of a decaying ridge lies across central
Florida and will slowly slide south through Saturday. This will
maintain mostly gentle to moderate breezes with the exception of
the extreme Southeast Gulf waters immediately off the mainland,
with light to gentle breezes at times. This axis is being pushed
southward in advance of an approaching frontal boundary from the
north and northeast. Expect this front to sweep across the
Florida Keys coastal waters late Saturday into early Sunday, with
a period of fresh to strong breezes expected in its wake, lasting
through early next week.
The Approximate Shoreward Edge of the Gulf Stream as of March 22...
44 NM South of Dry Tortugas Light...on Loggerhead Key.
44 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
39 NM South of Sand Key Light...off Key West.
24 NM South of Looe Key...off Big Pine Key.
15 NM Southeast of Sombrero Key Light...off Marathon.
15 NM Southeast of Alligator Reef Light...off Islamorada.
11 NM Southeast of Molasses Reef Light...off Key Largo.
12 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.
$$
GMZ052>055-072>075-281430- Straits of Florida from Ocean Reef to Craig Key out 20 NM- Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM- Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out- Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out- 1017 PM EDT Fri Mar 27 2026 OVERNIGHT Northeast to east winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast to east 3 feet at 5 seconds. A slight chance of showers. SATURDAY Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast to east 3 feet at 5 seconds. A slight chance of showers. SATURDAY NIGHT Northeast to east winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet, building to 4 to 6 feet, occasionally to 8 feet after midnight. Wave Detail: Northeast to east 4 feet at 5 seconds, becoming northeast to east 5 feet at 6 seconds. A slight chance of showers. SUNDAY Northeast to east winds 20 to 25 knots. Seas 5 to 8 feet, occasionally to 10 feet. A slight chance of showers. SUNDAY NIGHT East winds 20 to 25 knots. Seas 7 to 9 feet, occasionally to 11 feet. A slight chance of showers. MONDAY East winds 20 to 25 knots. Seas 6 to 9 feet, occasionally to 11 feet. A slight chance of showers. MONDAY NIGHT East winds 20 to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. A slight chance of showers and thunderstorms. TUESDAY East winds 20 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. A slight chance of showers. TUESDAY NIGHT East winds 20 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. A slight chance of showers. WEDNESDAY East winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A slight chance of showers. WEDNESDAY NIGHT East winds near 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A chance of showers. $$
GMZ052>055-072>075-281430- Straits of Florida from Ocean Reef to Craig Key out 20 NM- Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM- Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out- Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out- 1017 PM EDT Fri Mar 27 2026 OVERNIGHT Northeast to east winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast to east 3 feet at 5 seconds. A slight chance of showers. SATURDAY Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast to east 3 feet at 5 seconds. A slight chance of showers. SATURDAY NIGHT Northeast to east winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet, building to 4 to 6 feet, occasionally to 8 feet after midnight. Wave Detail: Northeast to east 4 feet at 5 seconds, becoming northeast to east 5 feet at 6 seconds. A slight chance of showers. SUNDAY Northeast to east winds 20 to 25 knots. Seas 5 to 8 feet, occasionally to 10 feet. A slight chance of showers. SUNDAY NIGHT East winds 20 to 25 knots. Seas 7 to 9 feet, occasionally to 11 feet. A slight chance of showers. MONDAY East winds 20 to 25 knots. Seas 6 to 9 feet, occasionally to 11 feet. A slight chance of showers. MONDAY NIGHT East winds 20 to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. A slight chance of showers and thunderstorms. TUESDAY East winds 20 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. A slight chance of showers. TUESDAY NIGHT East winds 20 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. A slight chance of showers. WEDNESDAY East winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A slight chance of showers. WEDNESDAY NIGHT East winds near 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A chance of showers. $$