Hazardous marine condition(s):
Marine Weather Statement
GMZ005-270330-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1022 AM EST Mon Jan 26 2026
.SYNOPSIS...A strong cold front will push through Keys coastal
waters this afternoon through tonight. Winds will start out light
to gentle out of the southwest, strengthening slightly through
the day, as the tail end of a prefrontal trough advances eastward
across South Florida and the Keys. Expect winds to freshen
substantially as the front blasts through the Keys marine zones,
clocking around to the northwest to north and becoming strong,
gusting up to near 30 knots. Winds will relax substantially on
Tuesday, as high pressure builds southeastward through the
Southeast and across the Florida Peninsula. 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.
$$
GMZ032-035-270330- 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- 1022 AM EST Mon Jan 26 2026 SMALL CRAFT ADVISORY CONDITIONS EXPECTED TONIGHT THIS AFTERNOON Southwest to west winds 5 to 10 knots, becoming west to northwest near 15 knots. Seas around 1 foot, building to 1 to 2 feet. Nearshore waters smooth to a light chop, becoming a moderate chop. Isolated showers. TONIGHT Northwest to north winds increasing to near 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. West of the Marquesas Keys, seas 3 to 5 feet, occasionally to 6 feet, building to 6 to 8 feet, occasionally to 10 feet. Nearshore waters becoming extremely rough. Isolated showers in the evening. TUESDAY North to northeast winds near 25 knots, becoming north 15 to 20 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. West of the Marquesas Keys, seas 7 to 9 feet, occasionally to 11 feet, subsiding to 6 to 7 feet, occasionally to 9 feet. Nearshore waters extremely rough, becoming choppy. TUESDAY NIGHT 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 winds near 15 knots. Seas 2 to 3 feet. Nearshore waters a moderate chop. Isolated showers. WEDNESDAY NIGHT Northwest to north winds near 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters rough. Isolated showers. THURSDAY North winds near 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 winds increasing to near 15 knots. Seas 2 to 3 feet. Nearshore waters becoming a moderate chop. FRIDAY North winds 10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate chop. FRIDAY NIGHT North winds near 15 knots. Seas 1 to 3 feet. Nearshore waters a moderate chop. Isolated showers. $$
GMZ032-035-270330- 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- 1022 AM EST Mon Jan 26 2026 SMALL CRAFT ADVISORY CONDITIONS EXPECTED TONIGHT THIS AFTERNOON Southwest to west winds 5 to 10 knots, becoming west to northwest near 15 knots. Seas around 1 foot, building to 1 to 2 feet. Nearshore waters smooth to a light chop, becoming a moderate chop. Isolated showers. TONIGHT Northwest to north winds increasing to near 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. West of the Marquesas Keys, seas 3 to 5 feet, occasionally to 6 feet, building to 6 to 8 feet, occasionally to 10 feet. Nearshore waters becoming extremely rough. Isolated showers in the evening. TUESDAY North to northeast winds near 25 knots, becoming north 15 to 20 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. West of the Marquesas Keys, seas 7 to 9 feet, occasionally to 11 feet, subsiding to 6 to 7 feet, occasionally to 9 feet. Nearshore waters extremely rough, becoming choppy. TUESDAY NIGHT 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 winds near 15 knots. Seas 2 to 3 feet. Nearshore waters a moderate chop. Isolated showers. WEDNESDAY NIGHT Northwest to north winds near 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters rough. Isolated showers. THURSDAY North winds near 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 winds increasing to near 15 knots. Seas 2 to 3 feet. Nearshore waters becoming a moderate chop. FRIDAY North winds 10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate chop. FRIDAY NIGHT North winds near 15 knots. Seas 1 to 3 feet. Nearshore waters a moderate chop. Isolated showers. $$