Hazardous marine condition(s):
Small Craft Advisory
GMZ005-290330-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1017 AM EST Fri Nov 28 2025
.SYNOPSIS...A cold front across the area will maintain fresh to
strong north to northeasterly breezes, and Small Craft Advisories
will likely extend through Saturday night. As the front decays,
breezes will slacken over the beginning of the new week. Another
cold front may be on the horizon for the middle of the week,
reflected in the breezes turning around the clock ahead of it. Shower
activity will wax and wane throughout the marine forecast period.
The Approximate Shoreward Edge of the Gulf Stream as of November
28...
28 NM South of Dry Tortugas Light...on Loggerhead Key.
20 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
17 NM South of Sand Key Light...off Key West.
15 NM South of Looe Key...off Big Pine Key.
15 NM Southeast of Sombrero Key Light...off Marathon.
10 NM Southeast of Alligator Reef Light...off Islamorada.
9 NM Southeast of Molasses Reef Light...off Key Largo.
8 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>075-290330- 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- 1017 AM EST Fri Nov 28 2025 SMALL CRAFT ADVISORY IN EFFECT THIS AFTERNOON North to northeast winds near 25 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: Northeast 9 feet at 7 seconds and northwest 5 feet at 8 seconds. Isolated showers. TONIGHT Northeast winds 20 to 25 knots. Seas 8 to 10 feet, occasionally to 13 feet. Wave Detail: Northeast 9 feet at 8 seconds and west to northwest 4 feet at 9 seconds. Scattered showers. SATURDAY Northeast to east winds near 25 knots. Seas 8 to 10 feet, occasionally to 13 feet. Wave Detail: Northeast to east 9 feet at 8 seconds and west to northwest 3 feet at 8 seconds. Scattered showers. SATURDAY NIGHT East winds near 25 knots, decreasing to 20 to 25 knots. Seas 8 to 10 feet, occasionally to 13 feet, subsiding to 6 to 9 feet, occasionally to 11 feet. Numerous showers. SUNDAY East winds near 20 knots, decreasing to 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Scattered showers. SUNDAY NIGHT East winds near 15 knots, decreasing to 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet, subsiding to 2 to 3 feet. Isolated showers. MONDAY East winds 10 to 15 knots. Seas 2 to 3 feet. Isolated showers. MONDAY NIGHT East to southeast winds 10 to 15 knots, becoming south. Seas 2 to 3 feet. Isolated showers. TUESDAY South winds 10 to 15 knots, becoming southwest to west. Seas 2 to 3 feet. Isolated showers. TUESDAY NIGHT Northwest winds near 10 knots. Seas 1 to 2 feet. Isolated showers. $$
GMZ052>055-072>075-290330- 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- 1017 AM EST Fri Nov 28 2025 SMALL CRAFT ADVISORY IN EFFECT THIS AFTERNOON North to northeast winds near 25 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: Northeast 9 feet at 7 seconds and northwest 5 feet at 8 seconds. Isolated showers. TONIGHT Northeast winds 20 to 25 knots. Seas 8 to 10 feet, occasionally to 13 feet. Wave Detail: Northeast 9 feet at 8 seconds and west to northwest 4 feet at 9 seconds. Scattered showers. SATURDAY Northeast to east winds near 25 knots. Seas 8 to 10 feet, occasionally to 13 feet. Wave Detail: Northeast to east 9 feet at 8 seconds and west to northwest 3 feet at 8 seconds. Scattered showers. SATURDAY NIGHT East winds near 25 knots, decreasing to 20 to 25 knots. Seas 8 to 10 feet, occasionally to 13 feet, subsiding to 6 to 9 feet, occasionally to 11 feet. Numerous showers. SUNDAY East winds near 20 knots, decreasing to 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Scattered showers. SUNDAY NIGHT East winds near 15 knots, decreasing to 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet, subsiding to 2 to 3 feet. Isolated showers. MONDAY East winds 10 to 15 knots. Seas 2 to 3 feet. Isolated showers. MONDAY NIGHT East to southeast winds 10 to 15 knots, becoming south. Seas 2 to 3 feet. Isolated showers. TUESDAY South winds 10 to 15 knots, becoming southwest to west. Seas 2 to 3 feet. Isolated showers. TUESDAY NIGHT Northwest winds near 10 knots. Seas 1 to 2 feet. Isolated showers. $$