Hazardous marine condition(s):
Small Craft Advisory
GMZ005-102145-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
432 AM EST Mon Nov 10 2025
.SYNOPSIS...A potent cold front will push through the Florida Keys
marine zones today, bringing fresh to strong northerly winds by
the afternoon. While the next high builds in behind the front,
winds will shift out of the northeast and gradually slacken.
Moderate to occasionally fresh breezes will remain possible
through the end of the work week.
The Approximate Shoreward Edge of the Gulf Stream as of November
4...
42 NM South of Dry Tortugas Light...on Loggerhead Key.
42 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
30 NM South of Sand Key Light...off Key West.
29 NM South of Looe Key...off Big Pine Key.
27 NM Southeast of Sombrero Key Light...off Marathon.
14 NM Southeast of Alligator Reef Light...off Islamorada.
4 NM Southeast of Molasses Reef Light...off Key Largo.
3 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.
$$
GMZ033-034-102145- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 432 AM EST Mon Nov 10 2025 SMALL CRAFT ADVISORY IN EFFECT TODAY Northwest winds 10 to 15 knots, becoming northwest to north and increasing to near 30 knots. Seas 3 to 5 feet, occasionally to 6 feet, building to 6 to 9 feet, occasionally to 11 feet this afternoon. Wave Detail: Northwest 5 feet at 4 seconds, becoming northwest to north 9 feet at 7 seconds. Isolated showers this morning. TONIGHT North winds near 30 knots. Seas 7 to 10 feet, occasionally to 13 feet. Wave Detail: Northwest to north 10 feet at 8 seconds. TUESDAY North to northeast winds 25 to 30 knots, decreasing to 20 to 25 knots. Seas 7 to 10 feet, occasionally to 13 feet. Wave Detail: North 8 feet at 7 seconds. TUESDAY NIGHT Northeast winds near 20 knots, decreasing to 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. WEDNESDAY Northeast winds 15 to 20 knots, decreasing to near 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. WEDNESDAY NIGHT Northeast winds near 15 knots. Seas 2 to 3 feet. THURSDAY AND THURSDAY NIGHT Northeast winds near 15 knots. Seas 2 to 3 feet. FRIDAY AND FRIDAY NIGHT Northeast to east winds near 15 knots. Seas 2 to 3 feet. $$
GMZ033-034-102145- 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- 432 AM EST Mon Nov 10 2025 SMALL CRAFT ADVISORY IN EFFECT TODAY Northwest winds 10 to 15 knots, becoming northwest to north and increasing to near 30 knots. Seas 3 to 5 feet, occasionally to 6 feet, building to 6 to 9 feet, occasionally to 11 feet this afternoon. Wave Detail: Northwest 5 feet at 4 seconds, becoming northwest to north 9 feet at 7 seconds. Isolated showers this morning. TONIGHT North winds near 30 knots. Seas 7 to 10 feet, occasionally to 13 feet. Wave Detail: Northwest to north 10 feet at 8 seconds. TUESDAY North to northeast winds 25 to 30 knots, decreasing to 20 to 25 knots. Seas 7 to 10 feet, occasionally to 13 feet. Wave Detail: North 8 feet at 7 seconds. TUESDAY NIGHT Northeast winds near 20 knots, decreasing to 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. WEDNESDAY Northeast winds 15 to 20 knots, decreasing to near 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. WEDNESDAY NIGHT Northeast winds near 15 knots. Seas 2 to 3 feet. THURSDAY AND THURSDAY NIGHT Northeast winds near 15 knots. Seas 2 to 3 feet. FRIDAY AND FRIDAY NIGHT Northeast to east winds near 15 knots. Seas 2 to 3 feet. $$