GMZ005-222030-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
426 AM EDT Sat Aug 22 2026
.SYNOPSIS...
A split ridge pattern remains in place across the Florida Keys
coastal waters. This will promote generally light to gentle
southeast to east breezes through Sunday, becoming variable at
times during the afternoon hours. While North Atlantic ridging
builds westward, southeasterly to easterly breezes will become
more established for Sunday night through the middle of next week,
becoming gentle and at times moderate during the overnight hours.
The Approximate Shoreward Edge of the Gulf Stream as of August
19, 2026...
37 NM south of Dry Tortugas Light, on Loggerhead Key
20 NM south-southeast of Cosgrove Shoal Light, off the Marquesas Keys
14 NM south-southeast of Sand Key Light, off Key West
10 NM south-southeast of Looe Key, off Big Pine Key
10 NM south-southeast of Sombrero Key Light, off Marathon
3 NM southeast of Alligator Reef Light, off Islamorada
1 NM west-northwest of Molasses Reef Light, off Key Largo
1 NM east-southeast of Carysfort Reef Light, off Ocean Reef
Gulf Stream Information Courtesy of the Naval Oceanographic
Office.
$$
GMZ033-034-222030- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 426 AM EDT Sat Aug 22 2026 TODAY South winds near 5 knots, becoming light and variable. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 4 seconds. TONIGHT Light and variable, becoming southeast near 5 knots. Seas 1 foot or less. SUNDAY Variable near 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms. SUNDAY NIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. MONDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. MONDAY NIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. TUESDAY East winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. TUESDAY NIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. WEDNESDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. WEDNESDAY NIGHT East to southeast winds near 10 knots. Seas 1 to 2 feet. Showers and thunderstorms likely. $$
GMZ033-034-222030- 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- 426 AM EDT Sat Aug 22 2026 TODAY South winds near 5 knots, becoming light and variable. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 4 seconds. TONIGHT Light and variable, becoming southeast near 5 knots. Seas 1 foot or less. SUNDAY Variable near 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms. SUNDAY NIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. MONDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. MONDAY NIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. TUESDAY East winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. TUESDAY NIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. WEDNESDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. WEDNESDAY NIGHT East to southeast winds near 10 knots. Seas 1 to 2 feet. Showers and thunderstorms likely. $$