GMZ005-110830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
425 PM EDT Mon Aug 10 2026
.SYNOPSIS...Ridging across northern Florida will steadily shift
southwards into Central and South Florida over the next few days.
Gentle to moderate breezes will gradually trend downwards to a
light to gentle breeze through this period. Winds are expected to
freshen late in the week and over the start of the weekend as the
ridge lifts back into northern Florida and a broad lower level
trough moves westward across our area.
The Approximate Shoreward Edge of the Gulf Stream as of
August 7, 2026...
25 NM South of Dry Tortugas Light...on Loggerhead Key.
15 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
19 NM South of Sand Key Light...off Key West.
29 NM South of Looe Key...off Big Pine Key.
16 NM Southeast of Sombrero Key Light...off Marathon.
4 NM Southeast of Alligator Reef Light...off Islamorada.
2 NM Southeast of Molasses Reef Light...off Key Largo.
1 NM Southeast of Carysfort Reef Light...off Ocean Reef.
Gulf Stream Information Courtesy of the National Weather Service in
Key West, using data from RTOFS and NASA SPoRT SST.
$$
GMZ033-034-110830- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 425 PM EDT Mon Aug 10 2026 TONIGHT East winds 10 to 15 knots. Seas 1 to 3 feet. Wave Detail: East 2 feet at 4 seconds. A slight chance of showers and thunderstorms. TUESDAY East winds 10 to 15 knots early, decreasing to 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: East 2 feet at 4 seconds. A slight chance of showers and thunderstorms. TUESDAY NIGHT East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: East 1 foot at 3 seconds. A slight chance of showers and thunderstorms. WEDNESDAY East winds 5 to 10 knots. Seas 1 foot or less. WEDNESDAY NIGHT Northeast winds 5 to 10 knots, becoming east. Seas 1 foot or less. A slight chance of showers and thunderstorms. THURSDAY East winds near 5 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. THURSDAY NIGHT East winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. FRIDAY East winds 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers and thunderstorms. FRIDAY NIGHT East winds near 10 knots, increasing to 10 to 15 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. SATURDAY East to southeast winds near 10 knots, increasing to 10 to 15 knots. Seas 1 to 2 feet, building to around 2 feet. A slight chance of showers and thunderstorms. SATURDAY NIGHT East to southeast winds increasing to near 15 knots. Seas building to 2 to 4 feet, occasionally to 5 feet. A slight chance of showers and thunderstorms. $$
GMZ033-034-110830- 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- 425 PM EDT Mon Aug 10 2026 TONIGHT East winds 10 to 15 knots. Seas 1 to 3 feet. Wave Detail: East 2 feet at 4 seconds. A slight chance of showers and thunderstorms. TUESDAY East winds 10 to 15 knots early, decreasing to 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: East 2 feet at 4 seconds. A slight chance of showers and thunderstorms. TUESDAY NIGHT East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: East 1 foot at 3 seconds. A slight chance of showers and thunderstorms. WEDNESDAY East winds 5 to 10 knots. Seas 1 foot or less. WEDNESDAY NIGHT Northeast winds 5 to 10 knots, becoming east. Seas 1 foot or less. A slight chance of showers and thunderstorms. THURSDAY East winds near 5 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. THURSDAY NIGHT East winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. FRIDAY East winds 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers and thunderstorms. FRIDAY NIGHT East winds near 10 knots, increasing to 10 to 15 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. SATURDAY East to southeast winds near 10 knots, increasing to 10 to 15 knots. Seas 1 to 2 feet, building to around 2 feet. A slight chance of showers and thunderstorms. SATURDAY NIGHT East to southeast winds increasing to near 15 knots. Seas building to 2 to 4 feet, occasionally to 5 feet. A slight chance of showers and thunderstorms. $$