Hazardous marine condition(s):
Small Craft Advisory
GMZ005-280945-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
441 PM EST Tue Jan 27 2026
.SYNOPSIS...Winds have slightly slackened this afternoon, as high
pressure built southeastward through the Southeast and across the
Florida Peninsula. However, sustained fresh to strong breezes and
elevated seas will last through the evening. Additional wind
surges are becoming increasingly likely into Wednesday night, as
a reinforcing cold front rolls southward across the area. Another
potent wind surge appears likely Saturday and Saturday night.
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.
$$
GMZ032-035-280945- 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- 441 PM EST Tue Jan 27 2026 SMALL CRAFT ADVISORY IN EFFECT TONIGHT North to northeast winds near 20 knots, decreasing to 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 rough, becoming 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, decreasing to 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. SUNDAY Northwest to north winds 20 to 25 knots, decreasing to 15 to 20 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 very rough, becoming choppy. SUNDAY NIGHT Northwest to north winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet, except 6 to 8 feet, occasionally to 10 feet west of the Marquesas Keys. Nearshore waters choppy. $$
GMZ032-035-280945- 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- 441 PM EST Tue Jan 27 2026 SMALL CRAFT ADVISORY IN EFFECT TONIGHT North to northeast winds near 20 knots, decreasing to 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 rough, becoming 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, decreasing to 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. SUNDAY Northwest to north winds 20 to 25 knots, decreasing to 15 to 20 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 very rough, becoming choppy. SUNDAY NIGHT Northwest to north winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet, except 6 to 8 feet, occasionally to 10 feet west of the Marquesas Keys. Nearshore waters choppy. $$