Hazardous marine condition(s):
Dense Fog Advisory
GMZ005-012145-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
434 AM EST Sun Mar 1 2026
.SYNOPSIS...
A weak high pressure system over the southeastern United States
will push southeastward across Florida today and tonight as a
weak trough pulls out into the Atlantic. As a result, light
breezes will pick up moderately out of the northeast. Thereafter,
a large and robust high will drive southeastward off of North
America into the Atlantic. This will usher in a prolonged period
of moderate to fresh breezes across the area through the remainder
of the forecast. A mix of cautions and possibly Advisories may be
required beginning around Monday Night.
The Approximate Shoreward Edge of the Gulf Stream as of February
26...
14 NM South of Dry Tortugas Light...on Loggerhead Key.
4 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
2 NM South of Sand Key Light...off Key West.
9 NM South of Looe Key...off Big Pine Key.
14 NM Southeast of Sombrero Key Light...off Marathon.
12 NM Southeast of Alligator Reef Light...off Islamorada.
5 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 and RTOFS.
$$
GMZ033-034-012145- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 434 AM EST Sun Mar 1 2026 DENSE FOG ADVISORY IN EFFECT TODAY North to northeast winds 5 to 10 knots, becoming variable. Seas around 1 foot. Wave Detail: Northeast 1 foot at 3 seconds and west to northwest 1 foot at 5 seconds. Areas of dense fog early. Isolated showers and thunderstorms. TONIGHT Northeast winds 5 to 10 knots, becoming northeast to east 10 to 15 knots after midnight. Seas 1 to 2 feet. Wave Detail: Northeast to east 2 feet at 3 seconds. Isolated showers. MONDAY Northeast to east winds near 15 knots, decreasing to 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: North to northeast 2 feet at 4 seconds. Isolated showers. MONDAY NIGHT Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. Isolated showers. TUESDAY Northeast to east winds near 15 knots, decreasing to 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers. TUESDAY NIGHT Northeast to east winds increasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers. WEDNESDAY East winds near 15 knots, decreasing to 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers. WEDNESDAY NIGHT East winds increasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers. THURSDAY AND THURSDAY NIGHT East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers. $$
GMZ033-034-012145- 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- 434 AM EST Sun Mar 1 2026 DENSE FOG ADVISORY IN EFFECT TODAY North to northeast winds 5 to 10 knots, becoming variable. Seas around 1 foot. Wave Detail: Northeast 1 foot at 3 seconds and west to northwest 1 foot at 5 seconds. Areas of dense fog early. Isolated showers and thunderstorms. TONIGHT Northeast winds 5 to 10 knots, becoming northeast to east 10 to 15 knots after midnight. Seas 1 to 2 feet. Wave Detail: Northeast to east 2 feet at 3 seconds. Isolated showers. MONDAY Northeast to east winds near 15 knots, decreasing to 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: North to northeast 2 feet at 4 seconds. Isolated showers. MONDAY NIGHT Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. Isolated showers. TUESDAY Northeast to east winds near 15 knots, decreasing to 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers. TUESDAY NIGHT Northeast to east winds increasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers. WEDNESDAY East winds near 15 knots, decreasing to 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers. WEDNESDAY NIGHT East winds increasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers. THURSDAY AND THURSDAY NIGHT East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers. $$