GMZ005-110830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
422 PM EDT Tue Mar 10 2026
.SYNOPSIS...High pressure is centered near Bermuda with the
western periphery of this ridge extending west into Florida and
the Gulf. The high will retreat eastward into the Atlantic
through mid week, shifting breezes east to southeasterly. A cold front
will steadily push southeastward into South Florida through the
remainder of the week and the weekend. Breezes will shift to the
southeast to south and eventually become variable sometime
Thursday. 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.
$$
GMZ032-035-110830- Bayside and Gulfside from Craig Key to west end of Seven Mile Bridge- Gulf of America from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms- 422 PM EDT Tue Mar 10 2026 TONIGHT East winds 10 to 15 knots, becoming east to southeast. Seas around 1 foot, except 2 to 3 feet west of the Marquesas Keys. Nearshore waters a light to moderate chop. WEDNESDAY East to southeast winds near 15 knots. Seas 1 to 2 feet, except 2 to 3 feet west of the Marquesas Keys. Nearshore waters a moderate chop. WEDNESDAY NIGHT East to southeast winds 10 to 15 knots, becoming southeast. Seas around 1 foot, except 2 to 3 feet west of the Marquesas Keys. Nearshore waters a light to moderate chop. THURSDAY Southeast to south winds near 10 knots, becoming south and decreasing to 5 to 10 knots. Seas around 1 foot, except subsiding to 1 to 2 feet west of the Marquesas Keys. Nearshore waters a light chop, becoming smooth to a light chop. THURSDAY NIGHT Southeast winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. A slight chance of showers. FRIDAY Southeast winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. A chance of showers. FRIDAY NIGHT East winds near 5 knots. Seas 1 to 2 feet. Nearshore waters smooth. A chance of showers and a slight chance of showers. SATURDAY East to southeast winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. A chance of showers and a slight chance of showers. SATURDAY NIGHT East to southeast winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. A chance of showers. SUNDAY Southeast winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A chance of showers with a slight chance of thunderstorms. SUNDAY NIGHT Southeast winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A chance of showers and thunderstorms. $$
GMZ032-035-110830- 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- 422 PM EDT Tue Mar 10 2026 TONIGHT East winds 10 to 15 knots, becoming east to southeast. Seas around 1 foot, except 2 to 3 feet west of the Marquesas Keys. Nearshore waters a light to moderate chop. WEDNESDAY East to southeast winds near 15 knots. Seas 1 to 2 feet, except 2 to 3 feet west of the Marquesas Keys. Nearshore waters a moderate chop. WEDNESDAY NIGHT East to southeast winds 10 to 15 knots, becoming southeast. Seas around 1 foot, except 2 to 3 feet west of the Marquesas Keys. Nearshore waters a light to moderate chop. THURSDAY Southeast to south winds near 10 knots, becoming south and decreasing to 5 to 10 knots. Seas around 1 foot, except subsiding to 1 to 2 feet west of the Marquesas Keys. Nearshore waters a light chop, becoming smooth to a light chop. THURSDAY NIGHT Southeast winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. A slight chance of showers. FRIDAY Southeast winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. A chance of showers. FRIDAY NIGHT East winds near 5 knots. Seas 1 to 2 feet. Nearshore waters smooth. A chance of showers and a slight chance of showers. SATURDAY East to southeast winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. A chance of showers and a slight chance of showers. SATURDAY NIGHT East to southeast winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. A chance of showers. SUNDAY Southeast winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A chance of showers with a slight chance of thunderstorms. SUNDAY NIGHT Southeast winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A chance of showers and thunderstorms. $$