GMZ005-170930-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
421 PM EST Fri Jan 16 2026
.SYNOPSIS...High pressure centered near the Florida First Coast
will continue to slide eastward. This will support rapidly
slackening breezes through Saturday, with breezes continuing to
clock to the northeast to east. The next cold front is progged to
push through the Florida Keys coastal waters on Sunday or Sunday
night, with fresh to strong northerly breezes in its wake for
early to the middle part of next week.
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.
$$
GMZ033-034-170930- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 421 PM EST Fri Jan 16 2026 TONIGHT Northeast to east winds near 10 knots, increasing to 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: West to northwest 4 feet at 8 seconds and northeast to east 2 feet at 4 seconds. Isolated showers after midnight. SATURDAY Northeast winds 10 to 15 knots, decreasing to near 10 knots. Seas 3 to 4 feet, occasionally to 5 feet, subsiding to 2 to 3 feet. Wave Detail: West 3 feet at 7 seconds and northeast 2 feet at 4 seconds. SATURDAY NIGHT North to northeast winds near 10 knots. Seas around 2 feet. Isolated showers. SUNDAY North winds 10 to 15 knots, becoming northwest to north near 20 knots. Seas around 2 feet, building 3 to 4 feet, occasionally to 6 feet. Isolated showers. SUNDAY NIGHT North winds 20 to 25 knots, decreasing to near 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Isolated showers. MONDAY North winds near 20 knots, becoming north to northeast 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. MONDAY NIGHT North to northeast winds 15 to 20 knots, increasing to near 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. TUESDAY North to northeast winds near 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. TUESDAY NIGHT Northeast winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. WEDNESDAY AND WEDNESDAY NIGHT Northeast to east winds near 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Isolated showers. $$
GMZ033-034-170930- 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- 421 PM EST Fri Jan 16 2026 TONIGHT Northeast to east winds near 10 knots, increasing to 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: West to northwest 4 feet at 8 seconds and northeast to east 2 feet at 4 seconds. Isolated showers after midnight. SATURDAY Northeast winds 10 to 15 knots, decreasing to near 10 knots. Seas 3 to 4 feet, occasionally to 5 feet, subsiding to 2 to 3 feet. Wave Detail: West 3 feet at 7 seconds and northeast 2 feet at 4 seconds. SATURDAY NIGHT North to northeast winds near 10 knots. Seas around 2 feet. Isolated showers. SUNDAY North winds 10 to 15 knots, becoming northwest to north near 20 knots. Seas around 2 feet, building 3 to 4 feet, occasionally to 6 feet. Isolated showers. SUNDAY NIGHT North winds 20 to 25 knots, decreasing to near 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Isolated showers. MONDAY North winds near 20 knots, becoming north to northeast 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. MONDAY NIGHT North to northeast winds 15 to 20 knots, increasing to near 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. TUESDAY North to northeast winds near 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. TUESDAY NIGHT Northeast winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. WEDNESDAY AND WEDNESDAY NIGHT Northeast to east winds near 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Isolated showers. $$