Hazardous marine condition(s):
Short Term Forecast
GMZ005-050330-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1025 AM EST Wed Nov 4 2026
.SYNOPSIS...
The flanks of a robust high pressure system offshore the Mid
Atlantic States will be will eroded by a low over the
northeastern United States and a deepening low well northeast of
the Bahamas. As a result, northeast to east breezes will undergo a
cycle of peaks and lulls as breezes fluctuate between light to
gentle and gentle to moderate through the remainder of the week.
In addition, drier air will be filtering in through the afternoon
and evening, leading to diminishing rain chances. A surface high
will develop across the Gulf beginning Friday, which may lead to
brief nocturnal wind surges along the west coast of Florida and
into the outer Gulf waters.
The Approximate Shoreward Edge of the Gulf Stream as of November
03, 2026...
57 NM south of Dry Tortugas Light, on Loggerhead Key
34 NM south of Cosgrove Shoal Light, off the Marquesas Keys
25 NM south of Sand Key Light, off Key West
17 NM south of Looe Key, off Big Pine Key
17 NM southeast of Sombrero Key Light, off Marathon
28 NM south-southeast of Alligator Reef Light, off Islamorada
26 NM southeast of Molasses Reef Light, off Key Largo
12 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.
$$
GMZ052>055-072>075-050330- Straits of Florida from Ocean Reef to Craig Key out 20 NM- Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM- Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out- Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out- 1025 AM EST Wed Nov 4 2026 THIS AFTERNOON Northeast to east winds near 10 knots. Seas around 2 feet, subsiding to 1 to 2 feet. Wave Detail: Northeast to east 2 feet at 6 seconds. A slight chance of showers and thunderstorms. TONIGHT Northeast to east winds near 10 knots. Seas 1 to 2 feet. Wave Detail: Northeast to east 2 feet at 5 seconds. A slight chance of showers and thunderstorms. THURSDAY Northeast to east winds near 10 knots. Seas around 2 feet. Wave Detail: Northeast to east 2 feet at 5 seconds. A slight chance of showers and thunderstorms. THURSDAY NIGHT Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers and thunderstorms. FRIDAY Northeast winds near 10 knots, decreasing to 5 to 10 knots. Seas 1 to 2 feet. FRIDAY NIGHT AND SATURDAY Northeast winds 5 to 10 knots. Seas 1 to 2 feet. SATURDAY NIGHT Northeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers. SUNDAY Northeast winds 5 to 10 knots. Seas around 1 foot. SUNDAY NIGHT North to northeast winds near 10 knots. Seas 1 to 2 feet. A slight chance of showers. $$
GMZ052>055-072>075-050330- 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- 1025 AM EST Wed Nov 4 2026 THIS AFTERNOON Northeast to east winds near 10 knots. Seas around 2 feet, subsiding to 1 to 2 feet. Wave Detail: Northeast to east 2 feet at 6 seconds. A slight chance of showers and thunderstorms. TONIGHT Northeast to east winds near 10 knots. Seas 1 to 2 feet. Wave Detail: Northeast to east 2 feet at 5 seconds. A slight chance of showers and thunderstorms. THURSDAY Northeast to east winds near 10 knots. Seas around 2 feet. Wave Detail: Northeast to east 2 feet at 5 seconds. A slight chance of showers and thunderstorms. THURSDAY NIGHT Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers and thunderstorms. FRIDAY Northeast winds near 10 knots, decreasing to 5 to 10 knots. Seas 1 to 2 feet. FRIDAY NIGHT AND SATURDAY Northeast winds 5 to 10 knots. Seas 1 to 2 feet. SATURDAY NIGHT Northeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers. SUNDAY Northeast winds 5 to 10 knots. Seas around 1 foot. SUNDAY NIGHT North to northeast winds near 10 knots. Seas 1 to 2 feet. A slight chance of showers. $$