GMZ005-250930-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
428 PM EST Sat Jan 24 2026
.SYNOPSIS...Gentle to moderate breezes are expected to veer
through the weekend as a ridge becomes better established across
Florida. A strong cold front is expected to race southeastward
across the Gulf Sunday night and through Keys waters Monday and
Monday night. Winds will freshen considerably behind the front.
Near gale force winds are possible Monday Night into Tuesday.
Winds relax substantially on Tuesday as high pressure builds
southeastward through the southeast and across Florida.
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.
$$
GMZ032-035-250930- 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- 428 PM EST Sat Jan 24 2026 TONIGHT East winds 5 to 10 knots, increasing to near 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop, becoming a light chop. SUNDAY Southeast winds near 10 knots. Seas 1 foot or less. Nearshore waters a light chop. SUNDAY NIGHT Southeast winds 5 to 10 knots, becoming south to southwest. Seas 1 foot or less. Nearshore waters smooth to a light chop. MONDAY Southwest to west winds 5 to 10 knots, becoming west to northwest 15 to 20 knots. Seas 1 to 2 feet. Nearshore waters smooth to a light chop, becoming to choppy. Isolated showers. MONDAY NIGHT Northwest to north winds 20 to 25 knots, becoming 25 to 30 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 very rough, becoming extremely rough. Isolated showers early. TUESDAY North winds 20 to 25 knots, becoming north to northeast 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet, except 6 to 9 feet, occasionally to 11 feet west of the Marquesas Keys. Nearshore waters very rough, becoming choppy. TUESDAY NIGHT Northeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 4 to 6 feet, occasionally to 8 feet west of the Marquesas Keys. Nearshore waters choppy. WEDNESDAY North to northeast winds near 15 knots, decreasing to 10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a moderate chop, becoming a light to moderate chop. Isolated showers. WEDNESDAY NIGHT Northwest to north winds 10 to 15 knots, increasing to near 15 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate chop, becoming a moderate chop. Isolated showers. THURSDAY Northwest to north winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy. THURSDAY NIGHT Northwest to north winds near 20 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 5 to 6 feet, occasionally to 8 feet west of the Marquesas Keys. Nearshore waters rough. $$
GMZ032-035-250930- 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- 428 PM EST Sat Jan 24 2026 TONIGHT East winds 5 to 10 knots, increasing to near 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop, becoming a light chop. SUNDAY Southeast winds near 10 knots. Seas 1 foot or less. Nearshore waters a light chop. SUNDAY NIGHT Southeast winds 5 to 10 knots, becoming south to southwest. Seas 1 foot or less. Nearshore waters smooth to a light chop. MONDAY Southwest to west winds 5 to 10 knots, becoming west to northwest 15 to 20 knots. Seas 1 to 2 feet. Nearshore waters smooth to a light chop, becoming to choppy. Isolated showers. MONDAY NIGHT Northwest to north winds 20 to 25 knots, becoming 25 to 30 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 very rough, becoming extremely rough. Isolated showers early. TUESDAY North winds 20 to 25 knots, becoming north to northeast 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet, except 6 to 9 feet, occasionally to 11 feet west of the Marquesas Keys. Nearshore waters very rough, becoming choppy. TUESDAY NIGHT Northeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 4 to 6 feet, occasionally to 8 feet west of the Marquesas Keys. Nearshore waters choppy. WEDNESDAY North to northeast winds near 15 knots, decreasing to 10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a moderate chop, becoming a light to moderate chop. Isolated showers. WEDNESDAY NIGHT Northwest to north winds 10 to 15 knots, increasing to near 15 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate chop, becoming a moderate chop. Isolated showers. THURSDAY Northwest to north winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy. THURSDAY NIGHT Northwest to north winds near 20 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 5 to 6 feet, occasionally to 8 feet west of the Marquesas Keys. Nearshore waters rough. $$