Hazardous marine condition(s):
Gale Warning
GMZ005-011600-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1051 PM EST Sat Jan 31 2026
.SYNOPSIS...Showers will gradually diminish from west to east
across the Florida Keys coastal waters overnight. An arctic cold
front will sweep through beginning shortly before sunset. In the
wake of this front, expect a period of gale-force winds (35 to 40
knots), tonight through Sunday morning. While breezes will slowly
slacken and seas subside Sunday through Monday, marine hazards
will continue. North to northeast breezes will slacken further on
Tuesday, becoming gentle to moderate.
The Approximate Shoreward Edge of the Gulf Stream as of January
28...
30 NM South of Dry Tortugas Light...on Loggerhead Key.
14 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
12 NM South of Sand Key Light...off Key West.
15 NM South of Looe Key...off Big Pine Key.
16 NM Southeast of Sombrero Key Light...off Marathon.
11 NM Southeast of Alligator Reef Light...off Islamorada.
7 NM Southeast of Molasses Reef Light...off Key Largo.
5 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.
$$
GMZ032-035-011600- Bayside and Gulf side from Craig Key to west end of Seven Mile Bridge- Gulf of Mexico from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms- 1051 PM EST Sat Jan 31 2026 GALE WARNING IN EFFECT OVERNIGHT Northwest winds near 35 knots, becoming northwest to north 25 to 30 knots. Seas 5 to 7 feet, occasionally to 9 feet, except 9 to 12 feet, occasionally to 15 feet west of the Marquesas Keys. Nearshore waters extremely rough. Isolated showers. SUNDAY Northwest to north winds 25 to 30 knots early, decreasing to 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. West of the Marquesas Keys, seas 9 to 12 feet, occasionally to 15 feet, subsiding to 8 to 10 feet, occasionally to 13 feet. Nearshore waters extremely rough, becoming very rough. Isolated showers. SUNDAY NIGHT Northwest to north winds 20 to 25 knots, decreasing to near 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 5 to 6 feet, occasionally to 8 feet. Nearshore waters very rough, becoming choppy. MONDAY North winds 15 to 20 knots, decreasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet, except 4 to 5 feet, occasionally to 6 feet west of the Marquesas Keys. Nearshore waters choppy, becoming a moderate chop. MONDAY NIGHT North to northeast winds near 15 knots. Seas 2 to 3 feet, except 3 to 4 feet, occasionally to 5 feet west of the Marquesas Keys. Nearshore waters a moderate chop. TUESDAY Northeast winds 10 to 15 knots. Seas 1 to 2 feet, except 2 to 3 feet west of the Marquesas Keys. Nearshore waters a light to moderate chop. TUESDAY NIGHT Northeast winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. WEDNESDAY North to northeast winds near 10 knots, becoming northwest 5 to 10 knots. Seas 1 to 2 feet, subsiding to around 1 foot. Nearshore waters a light chop, becoming smooth to a light chop. WEDNESDAY NIGHT Northwest winds 5 to 10 knots, becoming west 10 to 15 knots. Seas 1 foot or less, building to around 1 foot, except building to 1 to 2 feet west of the Marquesas Keys. Nearshore waters smooth to a light chop, becoming a light to moderate chop. Isolated showers. THURSDAY West to northwest winds 15 to 20 knots, becoming northwest near 25 knots. Seas 1 to 2 feet, building to 3 to 5 feet, occasionally to 6 feet. West of the Marquesas Keys, seas 2 to 3 feet, building to 5 to 6 feet, occasionally to 8 feet. Nearshore waters choppy, becoming extremely rough. Isolated showers. THURSDAY NIGHT Northwest to north winds 20 to 25 knots, decreasing to near 20 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, becoming rough. Isolated showers. $$
GMZ032-035-011600- Bayside and Gulf side from Craig Key to west end of Seven Mile Bridge- Gulf of Mexico from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms- 1051 PM EST Sat Jan 31 2026 GALE WARNING IN EFFECT OVERNIGHT Northwest winds near 35 knots, becoming northwest to north 25 to 30 knots. Seas 5 to 7 feet, occasionally to 9 feet, except 9 to 12 feet, occasionally to 15 feet west of the Marquesas Keys. Nearshore waters extremely rough. Isolated showers. SUNDAY Northwest to north winds 25 to 30 knots early, decreasing to 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. West of the Marquesas Keys, seas 9 to 12 feet, occasionally to 15 feet, subsiding to 8 to 10 feet, occasionally to 13 feet. Nearshore waters extremely rough, becoming very rough. Isolated showers. SUNDAY NIGHT Northwest to north winds 20 to 25 knots, decreasing to near 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 5 to 6 feet, occasionally to 8 feet. Nearshore waters very rough, becoming choppy. MONDAY North winds 15 to 20 knots, decreasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet, except 4 to 5 feet, occasionally to 6 feet west of the Marquesas Keys. Nearshore waters choppy, becoming a moderate chop. MONDAY NIGHT North to northeast winds near 15 knots. Seas 2 to 3 feet, except 3 to 4 feet, occasionally to 5 feet west of the Marquesas Keys. Nearshore waters a moderate chop. TUESDAY Northeast winds 10 to 15 knots. Seas 1 to 2 feet, except 2 to 3 feet west of the Marquesas Keys. Nearshore waters a light to moderate chop. TUESDAY NIGHT Northeast winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. WEDNESDAY North to northeast winds near 10 knots, becoming northwest 5 to 10 knots. Seas 1 to 2 feet, subsiding to around 1 foot. Nearshore waters a light chop, becoming smooth to a light chop. WEDNESDAY NIGHT Northwest winds 5 to 10 knots, becoming west 10 to 15 knots. Seas 1 foot or less, building to around 1 foot, except building to 1 to 2 feet west of the Marquesas Keys. Nearshore waters smooth to a light chop, becoming a light to moderate chop. Isolated showers. THURSDAY West to northwest winds 15 to 20 knots, becoming northwest near 25 knots. Seas 1 to 2 feet, building to 3 to 5 feet, occasionally to 6 feet. West of the Marquesas Keys, seas 2 to 3 feet, building to 5 to 6 feet, occasionally to 8 feet. Nearshore waters choppy, becoming extremely rough. Isolated showers. THURSDAY NIGHT Northwest to north winds 20 to 25 knots, decreasing to near 20 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, becoming rough. Isolated showers. $$