Hazardous marine condition(s):
Small Craft Advisory
GMZ005-160330-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1028 AM EST Thu Jan 15 2026
.SYNOPSIS...A strong cold front will continue to push through the
Keys marine zones today. Breezes will become strong, with
frequent near gale gusts late this morning through early this
evening. High pressure will quickly slide eastward across the
Southeast behind the front, supporting rapidly slackening breezes
for Friday through Saturday clocking around to the northeast. The
next cold front is progged to push through the Florida Keys
coastal waters on Sunday or Sunday night.
The Approximate Shoreward Edge of the Gulf Stream as of January
12...
19 NM South of Dry Tortugas Light...on Loggerhead Key.
13 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
15 NM South of Sand Key Light...off Key West.
17 NM South of Looe Key...off Big Pine Key.
17 NM Southeast of Sombrero Key Light...off Marathon.
15 NM Southeast of Alligator Reef Light...off Islamorada.
10 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.
$$
GMZ033-034-160330- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 1028 AM EST Thu Jan 15 2026 SMALL CRAFT ADVISORY IN EFFECT THIS AFTERNOON West to northwest winds 20 to 25 knots, becoming northwest to north near 30 knots. Seas 5 to 7 feet, occasionally to 9 feet, building to 7 to 10 feet, occasionally to 13 feet. Wave Detail: West 7 feet at 6 seconds, becoming west to northwest 9 feet at 7 seconds. Widespread showers and isolated thunderstorms. TONIGHT Northwest to north winds near 25 knots, becoming north to northeast near 20 knots after midnight. Seas 8 to 10 feet, occasionally to 13 feet, subsiding to 6 to 9 feet, occasionally to 11 feet. Wave Detail: Northwest 9 feet at 8 seconds, becoming northwest 8 feet at 8 seconds. FRIDAY Northeast winds 15 to 20 knots, becoming northeast to east near 10 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 3 to 5 feet, occasionally to 7 feet. Wave Detail: Northwest 6 feet at 8 seconds. FRIDAY NIGHT Northeast winds near 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Isolated showers. SATURDAY North to northeast winds 10 to 15 knots. Seas around 3 feet. SATURDAY NIGHT North to northeast winds near 10 knots, becoming north 5 to 10 knots. Seas 2 to 3 feet, subsiding to 1 to 2 feet. Isolated showers. SUNDAY Northwest to north winds 5 to 10 knots, increasing to near 20 knots in the afternoon. Seas 1 to 2 feet, building to 3 to 5 feet, occasionally to 7 feet. Isolated showers. SUNDAY NIGHT North winds 20 to 25 knots, decreasing to 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. MONDAY North to northeast winds 15 to 20 knots, decreasing to near 15 knots. Seas 5 to 7 feet, occasionally to 9 feet. MONDAY NIGHT North to northeast winds near 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. $$
GMZ033-034-160330- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 1028 AM EST Thu Jan 15 2026 SMALL CRAFT ADVISORY IN EFFECT THIS AFTERNOON West to northwest winds 20 to 25 knots, becoming northwest to north near 30 knots. Seas 5 to 7 feet, occasionally to 9 feet, building to 7 to 10 feet, occasionally to 13 feet. Wave Detail: West 7 feet at 6 seconds, becoming west to northwest 9 feet at 7 seconds. Widespread showers and isolated thunderstorms. TONIGHT Northwest to north winds near 25 knots, becoming north to northeast near 20 knots after midnight. Seas 8 to 10 feet, occasionally to 13 feet, subsiding to 6 to 9 feet, occasionally to 11 feet. Wave Detail: Northwest 9 feet at 8 seconds, becoming northwest 8 feet at 8 seconds. FRIDAY Northeast winds 15 to 20 knots, becoming northeast to east near 10 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 3 to 5 feet, occasionally to 7 feet. Wave Detail: Northwest 6 feet at 8 seconds. FRIDAY NIGHT Northeast winds near 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Isolated showers. SATURDAY North to northeast winds 10 to 15 knots. Seas around 3 feet. SATURDAY NIGHT North to northeast winds near 10 knots, becoming north 5 to 10 knots. Seas 2 to 3 feet, subsiding to 1 to 2 feet. Isolated showers. SUNDAY Northwest to north winds 5 to 10 knots, increasing to near 20 knots in the afternoon. Seas 1 to 2 feet, building to 3 to 5 feet, occasionally to 7 feet. Isolated showers. SUNDAY NIGHT North winds 20 to 25 knots, decreasing to 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. MONDAY North to northeast winds 15 to 20 knots, decreasing to near 15 knots. Seas 5 to 7 feet, occasionally to 9 feet. MONDAY NIGHT North to northeast winds near 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. $$