GMZ005-050830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
419 PM EDT Fri Sep 4 2026
.SYNOPSIS...
The western periphery of a weak North Atlantic high will remain
in loose control of the Keys coastal waters for the next few
days. Light to gentle east to southeast breezes overnight through
morning will become light and at times variable during the
afternoon and evenings. Waves of low-level moisture pushing
across the Keys will support somewhat elevated rain and thunder
chances through Sunday, possibly returning to near normal for
early next week.
The Approximate Shoreward Edge of the Gulf Stream as of September 2, 2026...
34 NM south-southwest of Dry Tortugas Light, on Loggerhead Key
34 NM south-southeast of Cosgrove Shoal Light, off the Marquesas Keys
26 NM south-southeast of Sand Key Light, off Key West
21 NM south-southeast of Looe Key, off Big Pine Key
17 NM southeast of Sombrero Key Light, off Marathon
10 NM southeast of Alligator Reef Light, off Islamorada
6 NM east-southeast of Molasses Reef Light, off Key Largo
1 NM east-southeast of Carysfort Reef Light, off Ocean Reef
This data courtesy of the Naval Oceanographic Office.
$$
GMZ033-034-050830- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 419 PM EDT Fri Sep 4 2026 TONIGHT East winds near 5 knots, becoming southeast and increasing to 5 to 10 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 2 seconds. A chance of showers and thunderstorms. SATURDAY Southeast winds 5 to 10 knots, becoming variable near 5 knots. Seas 1 foot or less. Wave Detail: East to southeast 1 foot at 3 seconds. A chance of showers and thunderstorms. SATURDAY NIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 3 seconds. A chance of showers and thunderstorms. SUNDAY Southeast winds near 5 knots, becoming variable. Seas 1 foot or less. A chance of showers and thunderstorms. SUNDAY NIGHT Variable winds near 5 knots, becoming southeast to south. Seas 1 foot or less. A chance of showers and thunderstorms. MONDAY South to southwest winds near 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms. MONDAY NIGHT Variable winds near 5 knots, becoming southeast to south. Seas 1 foot or less. A chance of showers and thunderstorms. TUESDAY Southeast to south winds near 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms. TUESDAY NIGHT East winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. WEDNESDAY East winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. WEDNESDAY NIGHT East winds near 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. $$
GMZ033-034-050830- 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- 419 PM EDT Fri Sep 4 2026 TONIGHT East winds near 5 knots, becoming southeast and increasing to 5 to 10 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 2 seconds. A chance of showers and thunderstorms. SATURDAY Southeast winds 5 to 10 knots, becoming variable near 5 knots. Seas 1 foot or less. Wave Detail: East to southeast 1 foot at 3 seconds. A chance of showers and thunderstorms. SATURDAY NIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 3 seconds. A chance of showers and thunderstorms. SUNDAY Southeast winds near 5 knots, becoming variable. Seas 1 foot or less. A chance of showers and thunderstorms. SUNDAY NIGHT Variable winds near 5 knots, becoming southeast to south. Seas 1 foot or less. A chance of showers and thunderstorms. MONDAY South to southwest winds near 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms. MONDAY NIGHT Variable winds near 5 knots, becoming southeast to south. Seas 1 foot or less. A chance of showers and thunderstorms. TUESDAY Southeast to south winds near 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms. TUESDAY NIGHT East winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. WEDNESDAY East winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. WEDNESDAY NIGHT East winds near 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. $$