GMZ005-150230-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1009 AM EDT Mon Sep 14 2026
.SYNOPSIS...
A weak pressure pattern will result in light and varying breezes
though the afternoon. Breezes will gradually freshen up out of
the northeast to east over the next few days, as a continental
high builds southward towards our area. Expect breezes to peak in
the moderate range late Tuesday and late Wednesday. Near normal
rain chances will trend considerably upwards through mid week as
broad troughing and increasing moisture moves in from the east.
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.
$$
GMZ033-034-150230- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 1009 AM EDT Mon Sep 14 2026 THIS AFTERNOON Variable winds near 5 knots. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms. TONIGHT Winds becoming east 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northeast to east 1 foot at 2 seconds. A chance of showers and thunderstorms. TUESDAY East winds near 10 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 3 seconds. A chance of showers and thunderstorms. TUESDAY NIGHT East winds near 10 knots, increasing to near 15 knots. Seas building to 2 to 3 feet. Showers likely with a chance of thunderstorms. WEDNESDAY Northeast to east winds near 15 knots, decreasing to 10 to 15 knots. Seas 1 to 3 feet. Showers likely with a chance of thunderstorms. WEDNESDAY NIGHT Northeast to east winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Showers likely with a chance of thunderstorms. THURSDAY East winds 10 to 15 knots. Seas 2 to 3 feet. Showers likely with a chance of thunderstorms. THURSDAY NIGHT East winds 10 to 15 knots. Seas 1 to 3 feet. Showers with a chance of thunderstorms. FRIDAY East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. FRIDAY NIGHT East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. $$
GMZ033-034-150230- 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- 1009 AM EDT Mon Sep 14 2026 THIS AFTERNOON Variable winds near 5 knots. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms. TONIGHT Winds becoming east 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northeast to east 1 foot at 2 seconds. A chance of showers and thunderstorms. TUESDAY East winds near 10 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 3 seconds. A chance of showers and thunderstorms. TUESDAY NIGHT East winds near 10 knots, increasing to near 15 knots. Seas building to 2 to 3 feet. Showers likely with a chance of thunderstorms. WEDNESDAY Northeast to east winds near 15 knots, decreasing to 10 to 15 knots. Seas 1 to 3 feet. Showers likely with a chance of thunderstorms. WEDNESDAY NIGHT Northeast to east winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Showers likely with a chance of thunderstorms. THURSDAY East winds 10 to 15 knots. Seas 2 to 3 feet. Showers likely with a chance of thunderstorms. THURSDAY NIGHT East winds 10 to 15 knots. Seas 1 to 3 feet. Showers with a chance of thunderstorms. FRIDAY East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. FRIDAY NIGHT East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. $$