GMZ005-282030-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
429 AM EDT Sat Mar 28 2026
.SYNOPSIS...The axis of a decaying ridge lies across central
Florida and will slowly slide south through today. 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 today 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 28...
26 NM South of Dry Tortugas Light...on Loggerhead Key.
38 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
36 NM South of Sand Key Light...off Key West.
24 NM South of Looe Key...off Big Pine Key.
20 NM Southeast of Sombrero Key Light...off Marathon.
15 NM Southeast of Alligator Reef Light...off Islamorada.
7 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.
$$
GMZ032-035-282030- Bayside and Gulfside from Craig Key to west end of Seven Mile Bridge- Gulf of America from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms- 429 AM EDT Sat Mar 28 2026 TODAY Northeast winds near 10 knots, decreasing to 5 to 10 knots. Seas 1 foot or less, except 1 to 2 feet west of the Marquesas Keys. Nearshore waters a light chop, becoming smooth to a light chop. A slight chance of showers. TONIGHT Northeast to east winds near 10 knots, increasing to near 15 knots. Seas around 1 foot, building to 1 to 2 feet, except building to 2 to 3 feet west of the Marquesas Keys. Nearshore waters a light chop, becoming a moderate chop. A chance of showers with a slight chance of thunderstorms. SUNDAY Northeast to east winds 15 to 20 knots. Seas 2 to 3 feet, except 3 to 4 feet, occasionally to 5 feet west of the Marquesas Keys. Nearshore waters choppy. A slight chance of showers and thunderstorms. SUNDAY NIGHT East winds near 20 knots. Seas 2 to 3 feet, except around 4 feet, occasionally to 6 feet west of the Marquesas Keys. Nearshore waters rough. A chance of showers. MONDAY East winds near 20 knots. Seas 2 to 3 feet, except around 4 feet, occasionally to 6 feet west of the Marquesas Keys. Nearshore waters rough. A chance of showers with a slight chance of thunderstorms. MONDAY NIGHT AND TUESDAY East winds near 20 knots. Seas 2 to 3 feet, except around 4 feet, occasionally to 6 feet west of the Marquesas Keys. Nearshore waters rough. A chance of showers with a slight chance of thunderstorms. TUESDAY NIGHT East winds near 20 knots. Seas 2 to 3 feet, except around 4 feet, occasionally to 6 feet west of the Marquesas Keys. Nearshore waters rough. A slight chance of showers. WEDNESDAY East winds 15 to 20 knots. Seas 2 to 3 feet, except 3 to 4 feet, occasionally to 5 feet west of the Marquesas Keys. Nearshore waters choppy. WEDNESDAY NIGHT East winds 15 to 20 knots. Seas 2 to 3 feet, except 3 to 4 feet, occasionally to 5 feet west of the Marquesas Keys. Nearshore waters choppy. A slight chance of showers. $$
GMZ032-035-282030- Bayside and Gulfside from Craig Key to west end of Seven Mile Bridge- Gulf of America from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms- 429 AM EDT Sat Mar 28 2026 TODAY Northeast winds near 10 knots, decreasing to 5 to 10 knots. Seas 1 foot or less, except 1 to 2 feet west of the Marquesas Keys. Nearshore waters a light chop, becoming smooth to a light chop. A slight chance of showers. TONIGHT Northeast to east winds near 10 knots, increasing to near 15 knots. Seas around 1 foot, building to 1 to 2 feet, except building to 2 to 3 feet west of the Marquesas Keys. Nearshore waters a light chop, becoming a moderate chop. A chance of showers with a slight chance of thunderstorms. SUNDAY Northeast to east winds 15 to 20 knots. Seas 2 to 3 feet, except 3 to 4 feet, occasionally to 5 feet west of the Marquesas Keys. Nearshore waters choppy. A slight chance of showers and thunderstorms. SUNDAY NIGHT East winds near 20 knots. Seas 2 to 3 feet, except around 4 feet, occasionally to 6 feet west of the Marquesas Keys. Nearshore waters rough. A chance of showers. MONDAY East winds near 20 knots. Seas 2 to 3 feet, except around 4 feet, occasionally to 6 feet west of the Marquesas Keys. Nearshore waters rough. A chance of showers with a slight chance of thunderstorms. MONDAY NIGHT AND TUESDAY East winds near 20 knots. Seas 2 to 3 feet, except around 4 feet, occasionally to 6 feet west of the Marquesas Keys. Nearshore waters rough. A chance of showers with a slight chance of thunderstorms. TUESDAY NIGHT East winds near 20 knots. Seas 2 to 3 feet, except around 4 feet, occasionally to 6 feet west of the Marquesas Keys. Nearshore waters rough. A slight chance of showers. WEDNESDAY East winds 15 to 20 knots. Seas 2 to 3 feet, except 3 to 4 feet, occasionally to 5 feet west of the Marquesas Keys. Nearshore waters choppy. WEDNESDAY NIGHT East winds 15 to 20 knots. Seas 2 to 3 feet, except 3 to 4 feet, occasionally to 5 feet west of the Marquesas Keys. Nearshore waters choppy. A slight chance of showers. $$