GMZ005-091430-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1020 PM EDT Tue Sep 8 2026
.SYNOPSIS...
Florida Keys coastal waters will initially remain under a broad
nebulous pressure pattern tonight, leading to light and variable
winds. By early Wednesday, the western extent of the Atlantic
Ridge will begin building in and allow breezes to become more
easterly while freshening to gentle to moderate. Waves of low-
level moisture pushing across the Keys will support elevated rain
and thunder chances through Sunday.
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.
$$
GMZ033-034-091430- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 1020 PM EDT Tue Sep 8 2026 OVERNIGHT East to southeast winds 5 to 10 knots. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms. WEDNESDAY East winds 5 to 10 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 2 seconds. A chance of showers with a slight chance of thunderstorms. WEDNESDAY NIGHT East winds near 10 knots. Seas around 1 foot. Wave Detail: Northeast to east 1 foot at 3 seconds. A chance of showers with a slight chance of thunderstorms. THURSDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers with a slight chance of thunderstorms. THURSDAY NIGHT East to southeast winds increasing to around 10 knots. Seas around 1 foot. A chance of showers with a slight chance of thunderstorms. FRIDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers with a slight chance of thunderstorms. FRIDAY NIGHT East to southeast winds near 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. SATURDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. SATURDAY NIGHT East winds near 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. SUNDAY East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. A chance of thunderstorms. A chance of showers. SUNDAY NIGHT East to southeast winds near 10 knots. Seas around 2 feet. A chance of showers and thunderstorms. $$
GMZ033-034-091430- 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- 1020 PM EDT Tue Sep 8 2026 OVERNIGHT East to southeast winds 5 to 10 knots. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms. WEDNESDAY East winds 5 to 10 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 2 seconds. A chance of showers with a slight chance of thunderstorms. WEDNESDAY NIGHT East winds near 10 knots. Seas around 1 foot. Wave Detail: Northeast to east 1 foot at 3 seconds. A chance of showers with a slight chance of thunderstorms. THURSDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers with a slight chance of thunderstorms. THURSDAY NIGHT East to southeast winds increasing to around 10 knots. Seas around 1 foot. A chance of showers with a slight chance of thunderstorms. FRIDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers with a slight chance of thunderstorms. FRIDAY NIGHT East to southeast winds near 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. SATURDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. SATURDAY NIGHT East winds near 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. SUNDAY East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. A chance of thunderstorms. A chance of showers. SUNDAY NIGHT East to southeast winds near 10 knots. Seas around 2 feet. A chance of showers and thunderstorms. $$