GMZ005-212145-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
432 AM EST Fri Nov 21 2025
.SYNOPSIS...High pressure spanning the Atlantic Coast and Florida
will maintain gentle to moderate breezes, tending stronger over
the Florida Straits. This high will weaken as it pivots out into
the Atlantic tonight. This will result in slackening breezes
heading into the weekend. Breezes are expected to freshen
modestly early next week as a continental high driving into the
eastern United States reinforces the old ridge.
The Approximate Shoreward Edge of the Gulf Stream as of November 14...
54 NM South of Dry Tortugas Light...on Loggerhead Key.
23 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
19 NM South of Sand Key Light...off Key West.
17 NM South of Looe Key...off Big Pine Key.
15 NM Southeast of Sombrero Key Light...off Marathon.
4 NM Southeast of Alligator Reef Light...off Islamorada.
1 NM Southeast of Molasses Reef Light...off Key Largo.
1 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.
$$
GMZ052>055-072>075-212145- Straits of Florida from Ocean Reef to Craig Key out 20 NM- Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM- Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out- Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out- 432 AM EST Fri Nov 21 2025 TODAY Northeast to east winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds. TONIGHT Northeast to east winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast to east 3 feet at 5 seconds. SATURDAY Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast to east 3 feet at 5 seconds. SATURDAY NIGHT Northeast winds decreasing to near 10 knots. Seas subsiding to 1 to 2 feet. SUNDAY Northeast winds 10 to 15 knots. Seas 1 to 2 feet. SUNDAY NIGHT Northeast winds 10 to 15 knots. Seas 1 to 2 feet. MONDAY Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. MONDAY NIGHT East winds increasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. TUESDAY East winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Isolated showers. TUESDAY NIGHT East winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Isolated showers. $$
GMZ052>055-072>075-212145- Straits of Florida from Ocean Reef to Craig Key out 20 NM- Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM- Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out- Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out- 432 AM EST Fri Nov 21 2025 TODAY Northeast to east winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds. TONIGHT Northeast to east winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast to east 3 feet at 5 seconds. SATURDAY Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast to east 3 feet at 5 seconds. SATURDAY NIGHT Northeast winds decreasing to near 10 knots. Seas subsiding to 1 to 2 feet. SUNDAY Northeast winds 10 to 15 knots. Seas 1 to 2 feet. SUNDAY NIGHT Northeast winds 10 to 15 knots. Seas 1 to 2 feet. MONDAY Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. MONDAY NIGHT East winds increasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. TUESDAY East winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Isolated showers. TUESDAY NIGHT East winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Isolated showers. $$