GMZ005-240230-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1022 AM EDT Sun Aug 23 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 tonight, becoming variable at
times during the afternoon hours. While North Atlantic ridging
builds westward, east to southeast breezes will become more
established from tonight through Thursday, 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.
$$
GMZ033-034-240230- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 1022 AM EDT Sun Aug 23 2026 THIS AFTERNOON Southeast to south winds near 5 knots, becoming variable. Seas 1 foot or less. A slight chance of showers and thunderstorms. TONIGHT Variable winds near 5 knots, becoming east to southeast. Seas 1 foot or less. Wave Detail: East to southeast 1 foot at 2 seconds. A slight chance of showers and thunderstorms. MONDAY East to southeast winds 5 to 10 knots, increasing to near 10 knots. Seas 1 foot or less, building to around 1 foot. Wave Detail: East to southeast 1 foot at 2 seconds. A slight chance of showers and thunderstorms. MONDAY NIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. TUESDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. TUESDAY NIGHT East to southeast winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. WEDNESDAY East to southeast winds near 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. WEDNESDAY NIGHT East to southeast winds near 10 knots. Seas around 1 foot. Showers and thunderstorms likely. THURSDAY Southeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. THURSDAY NIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. $$
GMZ033-034-240230- 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- 1022 AM EDT Sun Aug 23 2026 THIS AFTERNOON Southeast to south winds near 5 knots, becoming variable. Seas 1 foot or less. A slight chance of showers and thunderstorms. TONIGHT Variable winds near 5 knots, becoming east to southeast. Seas 1 foot or less. Wave Detail: East to southeast 1 foot at 2 seconds. A slight chance of showers and thunderstorms. MONDAY East to southeast winds 5 to 10 knots, increasing to near 10 knots. Seas 1 foot or less, building to around 1 foot. Wave Detail: East to southeast 1 foot at 2 seconds. A slight chance of showers and thunderstorms. MONDAY NIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. TUESDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. TUESDAY NIGHT East to southeast winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. WEDNESDAY East to southeast winds near 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. WEDNESDAY NIGHT East to southeast winds near 10 knots. Seas around 1 foot. Showers and thunderstorms likely. THURSDAY Southeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. THURSDAY NIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. $$