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.
$$
GMZ032-035-290330- Bayside and Gulfside from Craig Key to west end of Seven Mile Bridge- Gulf of America from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms- 1017 AM EST Fri Nov 28 2025 SMALL CRAFT ADVISORY IN EFFECT THIS AFTERNOON North to northeast winds near 25 knots. Seas 4 to 6 feet, occasionally to 8 feet, except 7 to 9 feet, occasionally to 11 feet west of the Marquesas Keys. Nearshore waters extremely rough. TONIGHT Northeast winds 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 6 to 7 feet, occasionally to 9 feet west of the Marquesas Keys. Nearshore waters very rough. SATURDAY Northeast to east winds 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 5 to 7 feet, occasionally to 9 feet west of the Marquesas Keys. Nearshore waters very rough. Scattered showers. SATURDAY NIGHT East winds 20 to 25 knots, decreasing to near 20 knots. Seas 2 to 4 feet, occasionally to 5 feet, except 4 to 6 feet, occasionally to 8 feet west of the Marquesas Keys. Nearshore waters very rough, becoming rough. Scattered showers. SUNDAY East winds near 20 knots, decreasing to 15 to 20 knots. Seas 2 to 3 feet, except 3 to 4 feet, occasionally to 5 feet west of the Marquesas Keys. Nearshore waters rough, becoming choppy. Scattered showers. SUNDAY NIGHT Northeast to east winds near 15 knots, decreasing to 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a moderate chop, becoming a light to moderate chop. Isolated showers. MONDAY East winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. Isolated showers. MONDAY NIGHT East to southeast winds 10 to 15 knots, decreasing to near 10 knots. Seas 1 to 2 feet, subsiding to around 1 foot. Nearshore waters a light to moderate chop, becoming a light chop. Isolated showers. TUESDAY South winds near 10 knots, becoming southwest to west. Seas around 1 foot. Nearshore waters a light chop. Isolated showers. TUESDAY NIGHT Northwest winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. Isolated showers. $$
GMZ032-035-290330- Bayside and Gulfside from Craig Key to west end of Seven Mile Bridge- Gulf of America from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms- 1017 AM EST Fri Nov 28 2025 SMALL CRAFT ADVISORY IN EFFECT THIS AFTERNOON North to northeast winds near 25 knots. Seas 4 to 6 feet, occasionally to 8 feet, except 7 to 9 feet, occasionally to 11 feet west of the Marquesas Keys. Nearshore waters extremely rough. TONIGHT Northeast winds 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 6 to 7 feet, occasionally to 9 feet west of the Marquesas Keys. Nearshore waters very rough. SATURDAY Northeast to east winds 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 5 to 7 feet, occasionally to 9 feet west of the Marquesas Keys. Nearshore waters very rough. Scattered showers. SATURDAY NIGHT East winds 20 to 25 knots, decreasing to near 20 knots. Seas 2 to 4 feet, occasionally to 5 feet, except 4 to 6 feet, occasionally to 8 feet west of the Marquesas Keys. Nearshore waters very rough, becoming rough. Scattered showers. SUNDAY East winds near 20 knots, decreasing to 15 to 20 knots. Seas 2 to 3 feet, except 3 to 4 feet, occasionally to 5 feet west of the Marquesas Keys. Nearshore waters rough, becoming choppy. Scattered showers. SUNDAY NIGHT Northeast to east winds near 15 knots, decreasing to 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a moderate chop, becoming a light to moderate chop. Isolated showers. MONDAY East winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. Isolated showers. MONDAY NIGHT East to southeast winds 10 to 15 knots, decreasing to near 10 knots. Seas 1 to 2 feet, subsiding to around 1 foot. Nearshore waters a light to moderate chop, becoming a light chop. Isolated showers. TUESDAY South winds near 10 knots, becoming southwest to west. Seas around 1 foot. Nearshore waters a light chop. Isolated showers. TUESDAY NIGHT Northwest winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. Isolated showers. $$