GMZ005-241600-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1059 PM EST Fri Jan 23 2026
.SYNOPSIS...Northeast to easterly light to gentle breezes will
persist through the overnight. Weak troughing off the eastern
coast of Florida continues to fuel light to moderate showers
across the Straits. Shower coverage will diminish over the weekend
ahead of a potent cold front on Monday. Winds behind the front
will rapidly freshen to strong breezes. Near gale force winds are
possible Monday Night to Tuesday, but exactly how strong breezes
get is uncertain. The period of peak breezes will not last too
long; by Tuesday evening, expect breezes to slacken to fresh to
strong.
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.
$$
GMZ032-035-241600- Bayside and Gulfside from Craig Key to west end of Seven Mile Bridge- Gulf of America from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms- 1059 PM EST Fri Jan 23 2026 OVERNIGHT Northeast to east winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. Isolated showers. SATURDAY East winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. SATURDAY NIGHT East winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. SUNDAY East to southeast winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. SUNDAY NIGHT Southeast to south winds 5 to 10 knots, becoming south to southwest. Seas subsiding to 1 foot or less. Nearshore waters smooth to a light chop. Isolated showers. MONDAY Southwest to west winds 5 to 10 knots, becoming northwest 15 to 20 knots. Seas 1 foot or less, building to 2 to 3 feet. Nearshore waters smooth to a light chop, becoming choppy. Isolated showers. MONDAY NIGHT Northwest to north winds near 20 knots, increasing to near 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. West of the Marquesas Keys, seas 5 to 7 feet, occasionally to 9 feet, building to 7 to 9 feet, occasionally to 11 feet. Nearshore waters rough, becoming extremely rough. TUESDAY North to northeast winds near 25 knots, decreasing to 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. West of the Marquesas Keys, seas 7 to 9 feet, occasionally to 11 feet, subsiding to 5 to 8 feet, occasionally to 10 feet. Nearshore waters extremely rough, becoming choppy. TUESDAY NIGHT North to northeast winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. West of the Marquesas Keys, seas 5 to 6 feet, occasionally to 8 feet, subsiding to 3 to 4 feet, occasionally to 5 feet. Nearshore waters choppy. WEDNESDAY AND WEDNESDAY NIGHT Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate chop. Isolated showers. $$
GMZ032-035-241600- 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- 1059 PM EST Fri Jan 23 2026 OVERNIGHT Northeast to east winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. Isolated showers. SATURDAY East winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. SATURDAY NIGHT East winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. SUNDAY East to southeast winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. SUNDAY NIGHT Southeast to south winds 5 to 10 knots, becoming south to southwest. Seas subsiding to 1 foot or less. Nearshore waters smooth to a light chop. Isolated showers. MONDAY Southwest to west winds 5 to 10 knots, becoming northwest 15 to 20 knots. Seas 1 foot or less, building to 2 to 3 feet. Nearshore waters smooth to a light chop, becoming choppy. Isolated showers. MONDAY NIGHT Northwest to north winds near 20 knots, increasing to near 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. West of the Marquesas Keys, seas 5 to 7 feet, occasionally to 9 feet, building to 7 to 9 feet, occasionally to 11 feet. Nearshore waters rough, becoming extremely rough. TUESDAY North to northeast winds near 25 knots, decreasing to 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. West of the Marquesas Keys, seas 7 to 9 feet, occasionally to 11 feet, subsiding to 5 to 8 feet, occasionally to 10 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. West of the Marquesas Keys, seas 5 to 6 feet, occasionally to 8 feet, subsiding to 3 to 4 feet, occasionally to 5 feet. Nearshore waters choppy. WEDNESDAY AND WEDNESDAY NIGHT Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate chop. Isolated showers. $$