Hazardous marine condition(s):
Small Craft Advisory
GMZ005-301530-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1023 PM EST Sat Nov 29 2025
.SYNOPSIS...A frontal boundary south of the area, paired with a
dominant surface high over the eastern CONUS, will maintain fresh
to strong northeasterly breezes late tonight. As the front decays
and the high shifts northeastward, breezes will begin to slacken
by Sunday morning. Another cold front may be on the horizon for
the middle of the week, reflected in the breezes turning around
the clock ahead of it. Shower activity will wax and wane
throughout the marine forecast period.
The Approximate Shoreward Edge of the Gulf Stream as of November
28...
28 NM South of Dry Tortugas Light...on Loggerhead Key.
20 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
17 NM South of Sand Key Light...off Key West.
15 NM South of Looe Key...off Big Pine Key.
15 NM Southeast of Sombrero Key Light...off Marathon.
10 NM Southeast of Alligator Reef Light...off Islamorada.
9 NM Southeast of Molasses Reef Light...off Key Largo.
8 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.
$$
GMZ033-034-301530- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 1023 PM EST Sat Nov 29 2025 SMALL CRAFT ADVISORY IN EFFECT OVERNIGHT Northeast to east winds near 25 knots, decreasing to 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast to east 6 feet at 5 seconds and northwest to north 1 foot at 6 seconds. Numerous showers and isolated thunderstorms. SUNDAY Northeast to east winds near 20 knots, decreasing to 10 to 15 knots in the afternoon. Seas 3 to 6 feet, occasionally to 7 feet, subsiding to 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 5 feet at 5 seconds. Isolated showers. SUNDAY NIGHT Northeast to east winds increasing to 15 to 20 knots. Seas 2 to 4 feet. Wave Detail: Northeast to east 3 feet at 4 seconds. Isolated showers. MONDAY Northeast to east winds near 15 knots, decreasing to 10 to 15 knots in the afternoon. Seas subsiding to 2 to 3 feet. Isolated showers. MONDAY NIGHT East to southeast winds near 15 knots, decreasing to 10 to 15 knots. Seas 2 to 3 feet. Isolated showers. TUESDAY Southeast to south winds 10 to 15 knots, becoming southwest near 10 knots. Seas 2 to 3 feet, subsiding to 1 to 2 feet. Isolated showers. TUESDAY NIGHT West to northwest winds near 10 knots. Seas 1 to 2 feet. Isolated showers. WEDNESDAY North winds 10 to 15 knots. Seas 1 to 2 feet, building to 2 to 3 feet. Isolated showers. WEDNESDAY NIGHT North to northeast winds 10 to 15 knots. Seas 2 to 3 feet. THURSDAY Northeast winds 10 to 15 knots. Seas 2 to 3 feet. THURSDAY NIGHT Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. $$
GMZ033-034-301530- 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- 1023 PM EST Sat Nov 29 2025 SMALL CRAFT ADVISORY IN EFFECT OVERNIGHT Northeast to east winds near 25 knots, decreasing to 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast to east 6 feet at 5 seconds and northwest to north 1 foot at 6 seconds. Numerous showers and isolated thunderstorms. SUNDAY Northeast to east winds near 20 knots, decreasing to 10 to 15 knots in the afternoon. Seas 3 to 6 feet, occasionally to 7 feet, subsiding to 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 5 feet at 5 seconds. Isolated showers. SUNDAY NIGHT Northeast to east winds increasing to 15 to 20 knots. Seas 2 to 4 feet. Wave Detail: Northeast to east 3 feet at 4 seconds. Isolated showers. MONDAY Northeast to east winds near 15 knots, decreasing to 10 to 15 knots in the afternoon. Seas subsiding to 2 to 3 feet. Isolated showers. MONDAY NIGHT East to southeast winds near 15 knots, decreasing to 10 to 15 knots. Seas 2 to 3 feet. Isolated showers. TUESDAY Southeast to south winds 10 to 15 knots, becoming southwest near 10 knots. Seas 2 to 3 feet, subsiding to 1 to 2 feet. Isolated showers. TUESDAY NIGHT West to northwest winds near 10 knots. Seas 1 to 2 feet. Isolated showers. WEDNESDAY North winds 10 to 15 knots. Seas 1 to 2 feet, building to 2 to 3 feet. Isolated showers. WEDNESDAY NIGHT North to northeast winds 10 to 15 knots. Seas 2 to 3 feet. THURSDAY Northeast winds 10 to 15 knots. Seas 2 to 3 feet. THURSDAY NIGHT Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. $$