GMZ005-200330-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1030 AM EST Wed Nov 19 2025
.SYNOPSIS...A high pressure system stretching from the western
Atlantic to the Florida panhandle will sustain northeast to east
breezes across the Florida Keys coastal waters. Expect the high to
gradually weaken during the second half of the week, which will
allow breezes to slacken from moderate or fresh to gentle by the
weekend. Expect slightly fresher breezes south of the island
chain.
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.
$$
GMZ052>055-072>075-200330- Straits of Florida from Ocean Reef to Craig Key out 20 NM- Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM- Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out- Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out- 1030 AM EST Wed Nov 19 2025 THIS AFTERNOON Northeast to east winds near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 5 seconds. Scattered showers, mainly in the western Straits. TONIGHT Northeast to east winds near 15 knots, briefly increasing to 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast to east 4 feet at 5 seconds. THURSDAY Northeast to east winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast to east 4 feet at 5 seconds. THURSDAY NIGHT Northeast to east winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. FRIDAY Northeast to east winds near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. FRIDAY NIGHT Northeast to east winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers. SATURDAY THROUGH SUNDAY NIGHT Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. $$
GMZ052>055-072>075-200330- 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- 1030 AM EST Wed Nov 19 2025 THIS AFTERNOON Northeast to east winds near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 5 seconds. Scattered showers, mainly in the western Straits. TONIGHT Northeast to east winds near 15 knots, briefly increasing to 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast to east 4 feet at 5 seconds. THURSDAY Northeast to east winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast to east 4 feet at 5 seconds. THURSDAY NIGHT Northeast to east winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. FRIDAY Northeast to east winds near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. FRIDAY NIGHT Northeast to east winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers. SATURDAY THROUGH SUNDAY NIGHT Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. $$