Hazardous marine condition(s):
Small Craft Advisory
GMZ005-280330-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1018 AM EST Tue Jan 27 2026
.SYNOPSIS...Winds relaxed substantially on early this morning, as
high pressure built southeastward through the Southeast and
across the Florida Peninsula. However, sustained moderate to fresh
breezes and elevated seas will last through the evening.
Additional wind surges are becoming increasingly likely Tuesday
night into Wednesday night, as a reinforcing cold front rolls
southward across the area.
The Approximate Shoreward Edge of the Gulf Stream as of January
18...
18 NM South of Dry Tortugas Light...on Loggerhead Key.
16 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
15 NM South of Sand Key Light...off Key West.
13 NM South of Looe Key...off Big Pine Key.
13 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.
4 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.
$$
GMZ032-035-280330- 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- 1018 AM EST Tue Jan 27 2026 SMALL CRAFT ADVISORY IN EFFECT THIS AFTERNOON North to northeast winds 20 to 25 knots, decreasing to 15 to 20 knots. Seas 3 to 6 feet, occasionally to 8 feet. West of the Marquesas Keys, seas 6 to 8 feet, occasionally to 10 feet, subsiding to 6 to 7 feet, occasionally to 9 feet. Nearshore waters very rough, becoming choppy. TONIGHT North to northeast winds 15 to 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 choppy. WEDNESDAY North to northeast winds 15 to 20 knots, briefly becoming north near 15 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy, briefly becoming a moderate chop. WEDNESDAY NIGHT North winds 15 to 20 knots, increasing to near 20 knots. Seas 2 to 4 feet, occasionally to 5 feet, except around 4 feet, occasionally to 5 feet west of the Marquesas Keys. Nearshore waters choppy, becoming rough. THURSDAY North to northeast winds 15 to 20 knots, becoming 10 to 15 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy, becoming light to moderate chop. THURSDAY NIGHT North to northeast winds 10 to 15 knots, increasing to near 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop, becoming a moderate chop. Isolated showers. FRIDAY North winds near 15 knots, becoming northwest to north 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a moderate chop, becoming a light to moderate chop. Isolated showers. FRIDAY NIGHT Northwest winds near 15 knots. Seas 1 to 2 feet, except building to 2 to 3 feet west of the Marquesas Keys. Nearshore waters a moderate chop. Isolated showers. SATURDAY West to northwest winds 15 to 20 knots, becoming northwest 20 to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy, becoming very rough. Isolated showers. SATURDAY NIGHT Northwest to north winds near 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 extremely rough. Isolated showers. $$
GMZ032-035-280330- 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- 1018 AM EST Tue Jan 27 2026 SMALL CRAFT ADVISORY IN EFFECT THIS AFTERNOON North to northeast winds 20 to 25 knots, decreasing to 15 to 20 knots. Seas 3 to 6 feet, occasionally to 8 feet. West of the Marquesas Keys, seas 6 to 8 feet, occasionally to 10 feet, subsiding to 6 to 7 feet, occasionally to 9 feet. Nearshore waters very rough, becoming choppy. TONIGHT North to northeast winds 15 to 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 choppy. WEDNESDAY North to northeast winds 15 to 20 knots, briefly becoming north near 15 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy, briefly becoming a moderate chop. WEDNESDAY NIGHT North winds 15 to 20 knots, increasing to near 20 knots. Seas 2 to 4 feet, occasionally to 5 feet, except around 4 feet, occasionally to 5 feet west of the Marquesas Keys. Nearshore waters choppy, becoming rough. THURSDAY North to northeast winds 15 to 20 knots, becoming 10 to 15 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy, becoming light to moderate chop. THURSDAY NIGHT North to northeast winds 10 to 15 knots, increasing to near 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop, becoming a moderate chop. Isolated showers. FRIDAY North winds near 15 knots, becoming northwest to north 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a moderate chop, becoming a light to moderate chop. Isolated showers. FRIDAY NIGHT Northwest winds near 15 knots. Seas 1 to 2 feet, except building to 2 to 3 feet west of the Marquesas Keys. Nearshore waters a moderate chop. Isolated showers. SATURDAY West to northwest winds 15 to 20 knots, becoming northwest 20 to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy, becoming very rough. Isolated showers. SATURDAY NIGHT Northwest to north winds near 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 extremely rough. Isolated showers. $$