Hazardous marine condition(s):
Gale Watch
GMZ005-310930-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
429 PM EST Fri Jan 30 2026
.SYNOPSIS...Gentle to moderate, breezes will continue this evening
and through the overnight, while backing towards the west to
northwest. A strong cold front will blast through the Florida Keys
marine zones on Saturday. Breezes will dramatically freshen in
the wake of the front. A period of gale-force winds is expected
Saturday afternoon through Sunday morning across the Keys coastal
waters, as high pressure building across the Gulf Coast interacts
with the front. 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.
$$
GMZ052>055-072>075-310930- Straits of Florida from Ocean Reef to Craig Key out 20 NM- Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM- Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out- Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out- 429 PM EST Fri Jan 30 2026 GALE WATCH IN EFFECT SMALL CRAFT ADVISORY CONDITIONS ARE EXPECTED SATURDAY MORNING TONIGHT Northwest to north winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: North to northeast 3 feet at 5 seconds. Isolated showers. SATURDAY West to northwest winds 15 to 20 knots, becoming northwest 30 to 35 knots in the afternoon. Seas 2 to 3 feet, building to 5 to 8 feet, occasionally to 10 feet. Wave Detail: West to northwest 3 feet at 4 seconds and northeast to east 2 feet at 5 seconds, becoming northwest 8 feet at 6 seconds and northeast to east 1 foot at 5 seconds. Numerous showers. SATURDAY NIGHT Northwest winds near 35 knots. Seas 8 to 11 feet, occasionally to 14 feet, building to 10 to 14 feet, occasionally to 18 feet. Wave Detail: West to northwest 11 feet at 8 seconds, becoming northwest 14 feet at 9 seconds. Isolated showers. SUNDAY Northwest to north winds 30 to 35 knots, decreasing to near 25 knots. Seas 10 to 14 feet, occasionally to 18 feet, subsiding to 8 to 11 feet, occasionally to 14 feet. Isolated showers. SUNDAY NIGHT Northwest to north winds 20 to 25 knots. Seas 6 to 9 feet, occasionally to 11 feet. MONDAY North winds 20 to 25 knots, decreasing to 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. MONDAY NIGHT North to northeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. TUESDAY Northeast winds near 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. TUESDAY NIGHT Northeast to east winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Isolated showers. WEDNESDAY Northeast to east winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Isolated showers. WEDNESDAY NIGHT Northeast winds 10 to 15 knots, becoming northwest to north near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers. $$
GMZ052>055-072>075-310930- Straits of Florida from Ocean Reef to Craig Key out 20 NM- Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM- Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out- Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out- 429 PM EST Fri Jan 30 2026 GALE WATCH IN EFFECT SMALL CRAFT ADVISORY CONDITIONS ARE EXPECTED SATURDAY MORNING TONIGHT Northwest to north winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: North to northeast 3 feet at 5 seconds. Isolated showers. SATURDAY West to northwest winds 15 to 20 knots, becoming northwest 30 to 35 knots in the afternoon. Seas 2 to 3 feet, building to 5 to 8 feet, occasionally to 10 feet. Wave Detail: West to northwest 3 feet at 4 seconds and northeast to east 2 feet at 5 seconds, becoming northwest 8 feet at 6 seconds and northeast to east 1 foot at 5 seconds. Numerous showers. SATURDAY NIGHT Northwest winds near 35 knots. Seas 8 to 11 feet, occasionally to 14 feet, building to 10 to 14 feet, occasionally to 18 feet. Wave Detail: West to northwest 11 feet at 8 seconds, becoming northwest 14 feet at 9 seconds. Isolated showers. SUNDAY Northwest to north winds 30 to 35 knots, decreasing to near 25 knots. Seas 10 to 14 feet, occasionally to 18 feet, subsiding to 8 to 11 feet, occasionally to 14 feet. Isolated showers. SUNDAY NIGHT Northwest to north winds 20 to 25 knots. Seas 6 to 9 feet, occasionally to 11 feet. MONDAY North winds 20 to 25 knots, decreasing to 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. MONDAY NIGHT North to northeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. TUESDAY Northeast winds near 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. TUESDAY NIGHT Northeast to east winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Isolated showers. WEDNESDAY Northeast to east winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Isolated showers. WEDNESDAY NIGHT Northeast winds 10 to 15 knots, becoming northwest to north near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers. $$