Hazardous marine condition(s):
Short Term Forecast
GMZ005-250830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
423 PM EDT Mon Aug 24 2026
.SYNOPSIS...
A split ridge pattern remains in place across the Florida Keys
coastal waters. East to southeast breezes will prevail through
Thursday. Expect generally gentle breezes, which will peak to
moderate at times during the overnight hours, as North Atlantic
ridging builds westward. Shower chances will gradually increase as
the week progresses.
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.
$$
GMZ033-034-250830- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 423 PM EDT Mon Aug 24 2026 TONIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. TUESDAY East to southeast winds near 5 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 3 seconds. A chance of showers with a slight chance of thunderstorms. TUESDAY NIGHT East winds 5 to 10 knots, becoming east to southeast near 10 knots. Seas 1 to 2 feet. Wave Detail: East to southeast 2 feet at 3 seconds. A chance of showers and thunderstorms. WEDNESDAY East to southeast winds near 10 knots, briefly decreasing to 5 to 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. WEDNESDAY NIGHT East to southeast winds near 10 knots, increasing to 10 to 15 knots. Seas around 2 feet, building to 2 to 3 feet. Showers likely with a chance of thunderstorms. THURSDAY Southeast winds near 10 knots, decreasing to 5 to 10 knots. Seas around 2 feet, subsiding to 1 to 2 feet. Showers likely with a chance of thunderstorms. THURSDAY NIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. FRIDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. FRIDAY NIGHT East winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. SATURDAY East winds 5 to 10 knots. Seas around 1 to 2 feet. A chance of showers and thunderstorms. SATURDAY NIGHT East winds near 10 knots. Seas around 2 feet. Showers likely with a chance of thunderstorms. $$
GMZ033-034-250830- 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- 423 PM EDT Mon Aug 24 2026 TONIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. TUESDAY East to southeast winds near 5 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 3 seconds. A chance of showers with a slight chance of thunderstorms. TUESDAY NIGHT East winds 5 to 10 knots, becoming east to southeast near 10 knots. Seas 1 to 2 feet. Wave Detail: East to southeast 2 feet at 3 seconds. A chance of showers and thunderstorms. WEDNESDAY East to southeast winds near 10 knots, briefly decreasing to 5 to 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. WEDNESDAY NIGHT East to southeast winds near 10 knots, increasing to 10 to 15 knots. Seas around 2 feet, building to 2 to 3 feet. Showers likely with a chance of thunderstorms. THURSDAY Southeast winds near 10 knots, decreasing to 5 to 10 knots. Seas around 2 feet, subsiding to 1 to 2 feet. Showers likely with a chance of thunderstorms. THURSDAY NIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. FRIDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. FRIDAY NIGHT East winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. SATURDAY East winds 5 to 10 knots. Seas around 1 to 2 feet. A chance of showers and thunderstorms. SATURDAY NIGHT East winds near 10 knots. Seas around 2 feet. Showers likely with a chance of thunderstorms. $$