Hazardous marine condition(s):
Short Term Forecast
GMZ005-050830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
423 PM EDT Sat Oct 4 2025
.SYNOPSIS...A weak area of low pressure located near the central
and northwestern Bahamas will act to weaken the pressure gradient
briefly across the Florida Keys. This will result in slackening
breezes veering from the northeast to the southeast through
Sunday. This system is expected to drift west- northwestward
across the northwestern Bahamas and toward southern Florida during
the next couple of days. As it lifts north and northwest of the
Keys, high pressure across the Atlantic will build back in
resulting in freshening northeast to east breezes.
The Approximate Shoreward Edge of the Gulf Stream as of October
01...
42 NM South of Dry Tortugas Light...on Loggerhead Key.
33 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
33 NM South of Sand Key Light...off Key West.
35 NM South of Looe Key...off Big Pine Key.
16 NM Southeast of Sombrero Key Light...off Marathon.
10 NM Southeast of Alligator Reef Light...off Islamorada.
6 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.
$$
GMZ033-034-050830- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 423 PM EDT Sat Oct 4 2025 TONIGHT East to southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 4 seconds. Scattered showers and isolated thunderstorms. SUNDAY East to southeast winds near 10 knots, decreasing to 5 to 10 knots. Seas subsiding to 1 to 2 feet. Wave Detail: East 2 feet at 4 seconds. Scattered showers and isolated thunderstorms. SUNDAY NIGHT East winds 5 to 10 knots. Seas around 1 foot. Wave Detail: East 1 foot at 3 seconds. Scattered showers and isolated thunderstorms. MONDAY Northeast to east winds 5 to 10 knots, increasing to near 10 knots. Seas around 1 foot. Scattered showers and isolated thunderstorms. MONDAY NIGHT Northeast to east winds 10 to 15 knots. Seas around 1 foot, building to around 2 feet. Scattered showers and isolated thunderstorms. TUESDAY Northeast to east winds increasing to near 15 knots. Seas 2 to 3 feet. Scattered showers and isolated thunderstorms. TUESDAY NIGHT Northeast to east winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers and isolated thunderstorms. WEDNESDAY AND WEDNESDAY NIGHT Northeast to east winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers and isolated thunderstorms. THURSDAY Northeast to east winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers and isolated thunderstorms. THURSDAY NIGHT East winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers and isolated thunderstorms. $$
GMZ033-034-050830- 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- 423 PM EDT Sat Oct 4 2025 TONIGHT East to southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 4 seconds. Scattered showers and isolated thunderstorms. SUNDAY East to southeast winds near 10 knots, decreasing to 5 to 10 knots. Seas subsiding to 1 to 2 feet. Wave Detail: East 2 feet at 4 seconds. Scattered showers and isolated thunderstorms. SUNDAY NIGHT East winds 5 to 10 knots. Seas around 1 foot. Wave Detail: East 1 foot at 3 seconds. Scattered showers and isolated thunderstorms. MONDAY Northeast to east winds 5 to 10 knots, increasing to near 10 knots. Seas around 1 foot. Scattered showers and isolated thunderstorms. MONDAY NIGHT Northeast to east winds 10 to 15 knots. Seas around 1 foot, building to around 2 feet. Scattered showers and isolated thunderstorms. TUESDAY Northeast to east winds increasing to near 15 knots. Seas 2 to 3 feet. Scattered showers and isolated thunderstorms. TUESDAY NIGHT Northeast to east winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers and isolated thunderstorms. WEDNESDAY AND WEDNESDAY NIGHT Northeast to east winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers and isolated thunderstorms. THURSDAY Northeast to east winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers and isolated thunderstorms. THURSDAY NIGHT East winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers and isolated thunderstorms. $$