Hazardous marine condition(s):
Short Term Forecast
GMZ005-112045-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
438 AM EDT Fri Sep 11 2026
.SYNOPSIS...
Ridging across the southeastern United States and Florida will
maintain mostly gentle east to southeasterly breezes over the next
few days. Expect breezes to peak in the evening and overnight
while lulling during the day. Low level moisture will remain
abundant and keep convective potential slightly above normal. The
ridge will be reinforced late in the forecast and may drive
freshening northeast to easterly breezes.
The Approximate Shoreward Edge of the Gulf Stream as of September
11, 2026...
26 NM south of Dry Tortugas Light, on Loggerhead Key
15 NM south of Cosgrove Shoal Light, off the Marquesas Keys
15 NM south of Sand Key Light, off Key West
11 NM south-southeast of Looe Key, off Big Pine Key
8 NM southeast of Sombrero Key Light, off Marathon
6 NM southeast of Alligator Reef Light, off Islamorada
2 NM southeast of Molasses Reef Light, off Key Largo
1 NM east-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.
$$
GMZ033-034-112045- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 438 AM EDT Fri Sep 11 2026 TODAY East to southeast winds 5 to 10 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 3 seconds. A chance of showers and thunderstorms. TONIGHT East to southeast winds near 10 knots. Seas around 1 foot. Wave Detail: East 1 foot at 3 seconds. A chance of showers and thunderstorms. SATURDAY Southeast winds near 5 knots. Seas around 1 foot. Wave Detail: Southeast 1 foot at 4 seconds. A chance of showers and thunderstorms. SATURDAY NIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. SUNDAY Southeast winds near 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms. SUNDAY NIGHT East winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms. MONDAY East winds near 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms. MONDAY NIGHT East winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. TUESDAY Northeast to east winds 10 to 15 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. TUESDAY NIGHT East winds near 15 knots. Seas 2 to 3 feet. Showers likely with a chance of thunderstorms. $$
GMZ033-034-112045- 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- 438 AM EDT Fri Sep 11 2026 TODAY East to southeast winds 5 to 10 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 3 seconds. A chance of showers and thunderstorms. TONIGHT East to southeast winds near 10 knots. Seas around 1 foot. Wave Detail: East 1 foot at 3 seconds. A chance of showers and thunderstorms. SATURDAY Southeast winds near 5 knots. Seas around 1 foot. Wave Detail: Southeast 1 foot at 4 seconds. A chance of showers and thunderstorms. SATURDAY NIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. SUNDAY Southeast winds near 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms. SUNDAY NIGHT East winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms. MONDAY East winds near 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms. MONDAY NIGHT East winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. TUESDAY Northeast to east winds 10 to 15 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. TUESDAY NIGHT East winds near 15 knots. Seas 2 to 3 feet. Showers likely with a chance of thunderstorms. $$