GMZ005-072130-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
421 AM EST Wed Jan 7 2026
.SYNOPSIS...A ridge axis extending from the Central Atlantic and
across the Gulf Basin will sit parked across the Florida Keys
today. As a result, light and variable winds this morning, will
gradually clock around from the northeast to east while remaining
light to gentle. The ridge is expected to become reinforced by a
new ridge shifting in from the west, allow breezes to freshen to
gentle to moderate through the end of the week and becoming more
easterly. The exception will be out across the Straits of Florida,
where moderate to occasionally fresh breezes will be possible. The
next cold front passage is looking to be late Sunday into early
Monday with freshening northerly breezes in the wake.
The Approximate Shoreward Edge of the Gulf Stream as of January
06...
17 NM South of Dry Tortugas Light...on Loggerhead Key.
11 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
11 NM South of Sand Key Light...off Key West.
16 NM South of Looe Key...off Big Pine Key.
15 NM Southeast of Sombrero Key Light...off Marathon.
12 NM Southeast of Alligator Reef Light...off Islamorada.
7 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.
$$
GMZ052>055-072>075-072130- 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- 421 AM EST Wed Jan 7 2026 TODAY Northeast to east winds 5 to 10 knots, increasing to near 10 knots in the afternoon. Seas 1 to 2 feet, building to around 2 feet. Wave Detail: East 2 feet at 4 seconds. Isolated showers. TONIGHT Northeast to east winds 10 to 15 knots. Seas building to to 2 to 3 feet. Wave Detail: East 3 feet at 4 seconds. Isolated showers. THURSDAY East to southeast winds increasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East to southeast 4 feet at 5 seconds. Isolated showers. THURSDAY NIGHT East to southeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Isolated showers. FRIDAY East to southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. FRIDAY NIGHT East to southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Isolated showers. SATURDAY East to southeast winds near 15 knots, decreasing to 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Isolated showers. SATURDAY NIGHT East to southeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers. SUNDAY Northeast to east winds near 10 knots. Seas 2 to 3 feet. Isolated showers. SUNDAY NIGHT Northeast winds 10 to 15 knots, becoming north to northeast near 20 knots. Seas 2 to 3 feet, building to 3 to 5 feet, occasionally to 6 feet. Isolated showers. $$
GMZ052>055-072>075-072130- 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- 421 AM EST Wed Jan 7 2026 TODAY Northeast to east winds 5 to 10 knots, increasing to near 10 knots in the afternoon. Seas 1 to 2 feet, building to around 2 feet. Wave Detail: East 2 feet at 4 seconds. Isolated showers. TONIGHT Northeast to east winds 10 to 15 knots. Seas building to to 2 to 3 feet. Wave Detail: East 3 feet at 4 seconds. Isolated showers. THURSDAY East to southeast winds increasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East to southeast 4 feet at 5 seconds. Isolated showers. THURSDAY NIGHT East to southeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Isolated showers. FRIDAY East to southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. FRIDAY NIGHT East to southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Isolated showers. SATURDAY East to southeast winds near 15 knots, decreasing to 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Isolated showers. SATURDAY NIGHT East to southeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers. SUNDAY Northeast to east winds near 10 knots. Seas 2 to 3 feet. Isolated showers. SUNDAY NIGHT Northeast winds 10 to 15 knots, becoming north to northeast near 20 knots. Seas 2 to 3 feet, building to 3 to 5 feet, occasionally to 6 feet. Isolated showers. $$