GMZ005-272130-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
421 AM EST Fri Feb 27 2026
.SYNOPSIS...
Light to moderate east to southeasterly breezes across the Keys
coastal waters will persist through the end of the month. Over
the weekend, the Atlantic ridge will shift further eastward as a
couple of frontal systems stall over northern Florida. Expect a
period of light and variable winds as a col region forms near the
northern waters on Saturday. A Cuban Shadow will keep shower
coverage limited during this period. Next week, a broad high
pressure system is forecast to migrate into the eastern United
States, which would support rapidly freshening breezes across the
southern waters.
The Approximate Shoreward Edge of the Gulf Stream as of February
26...
14 NM South of Dry Tortugas Light...on Loggerhead Key.
4 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
2 NM South of Sand Key Light...off Key West.
9 NM South of Looe Key...off Big Pine Key.
14 NM Southeast of Sombrero Key Light...off Marathon.
12 NM Southeast of Alligator Reef Light...off Islamorada.
5 NM Southeast of Molasses Reef Light...off Key Largo.
3 NM Southeast of Carysfort Reef Light...off Ocean Reef.
Gulf Stream Information Courtesy of the National Weather Service in
Key West based on products from NASA SPoRT and RTOFS.
$$
GMZ033-034-272130- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 421 AM EST Fri Feb 27 2026 TODAY East to southeast winds near 10 knots, decreasing to 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: East to southeast 1 foot at 3 seconds. TONIGHT East to southeast winds 5 to 10 knots. Seas subsiding to around 1 foot. Wave Detail: East to southeast 1 foot at 3 seconds and west to northwest 1 foot at 8 seconds. Scattered showers. SATURDAY East to southeast winds near 5 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 2 seconds and west to northwest 1 foot at 7 seconds. Isolated showers. SATURDAY NIGHT AND SUNDAY North to northeast winds 5 to 10 knots. Seas around 1 foot. Isolated showers. SUNDAY NIGHT Northeast to east winds 5 to 10 knots, increasing to 10 to 15 knots. Seas building to 1 to 2 feet. MONDAY Northeast to east winds 10 to 15 knots. Seas building to 1 to 3 feet. MONDAY NIGHT Northeast to east winds 10 to 15 knots, increasing to 15 to 20 knots. Seas building to 2 to 4 feet, occasionally to 5 feet. TUESDAY Northeast to east winds 15 to 20 knots, decreasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. TUESDAY NIGHT Northeast to east winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers. $$
GMZ033-034-272130- 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- 421 AM EST Fri Feb 27 2026 TODAY East to southeast winds near 10 knots, decreasing to 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: East to southeast 1 foot at 3 seconds. TONIGHT East to southeast winds 5 to 10 knots. Seas subsiding to around 1 foot. Wave Detail: East to southeast 1 foot at 3 seconds and west to northwest 1 foot at 8 seconds. Scattered showers. SATURDAY East to southeast winds near 5 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 2 seconds and west to northwest 1 foot at 7 seconds. Isolated showers. SATURDAY NIGHT AND SUNDAY North to northeast winds 5 to 10 knots. Seas around 1 foot. Isolated showers. SUNDAY NIGHT Northeast to east winds 5 to 10 knots, increasing to 10 to 15 knots. Seas building to 1 to 2 feet. MONDAY Northeast to east winds 10 to 15 knots. Seas building to 1 to 3 feet. MONDAY NIGHT Northeast to east winds 10 to 15 knots, increasing to 15 to 20 knots. Seas building to 2 to 4 feet, occasionally to 5 feet. TUESDAY Northeast to east winds 15 to 20 knots, decreasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. TUESDAY NIGHT Northeast to east winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers. $$