GMZ005-082130-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
419 AM EST Sat Nov 8 2025
.SYNOPSIS...High pressure will continue to slide eastward across
the central North Atlantic today and Sunday. This will result in
mainly light east to southeast breezes, potentially becoming
variable at times. A potent cold front will push through the
Florida Keys marine zones on Monday with fresh to strong
northerlies expected in its wake early next week. 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.
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.
$$
GMZ042>044-082130- Hawk Channel from Ocean Reef to Craig Key out to the reef- Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef- Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef- 419 AM EST Sat Nov 8 2025 TODAY East to southeast winds near 5 knots. Seas around 1 foot. Nearshore waters smooth. Isolated showers. TONIGHT East to southeast winds near 5 knots. Seas around 1 foot. Nearshore waters smooth. Isolated showers. SUNDAY Southeast winds near 5 knots, becoming variable in the afternoon. Seas around 1 foot. Nearshore waters smooth. Isolated showers. SUNDAY NIGHT Northwest winds near 5 knots, increasing to near 10 knots. Seas around 1 foot. Nearshore waters smooth, becoming a light chop. Isolated showers. MONDAY Northwest winds 10 to 15 knots, becoming northwest to north and increasing to 25 to 30 knots in the afternoon. Seas 1 to 2 feet, building to 2 to 3 feet. West of Cosgrove Shoal Light, seas 2 to 3 feet, building to 5 to 7 feet, occasionally to 9 feet. Nearshore waters a light to moderate chop, becoming extremely rough. Isolated showers. MONDAY NIGHT Northwest to north winds 25 to 30 knots, becoming north. Seas 2 to 4 feet, occasionally to 5 feet, except 6 to 9 feet, occasionally to 11 feet west of Cosgrove Shoal Light. Nearshore waters extremely rough. TUESDAY North to northeast winds 25 to 30 knots, becoming northeast and decreasing to 20 to 25 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet, except 5 to 8 feet, occasionally to 10 feet west of Cosgrove Shoal Light. Nearshore waters extremely rough, becoming very rough. TUESDAY NIGHT Northeast winds near 20 knots. Seas 2 to 4 feet, occasionally to 5 feet, except 4 to 6 feet, occasionally to 8 feet west of Cosgrove Shoal Light. Nearshore waters rough. WEDNESDAY Northeast to east winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet, except 4 to 5 feet, occasionally to 6 feet west of Cosgrove Shoal Light. Nearshore waters choppy. WEDNESDAY NIGHT Northeast winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy. $$
GMZ042>044-082130- Hawk Channel from Ocean Reef to Craig Key out to the reef- Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef- Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef- 419 AM EST Sat Nov 8 2025 TODAY East to southeast winds near 5 knots. Seas around 1 foot. Nearshore waters smooth. Isolated showers. TONIGHT East to southeast winds near 5 knots. Seas around 1 foot. Nearshore waters smooth. Isolated showers. SUNDAY Southeast winds near 5 knots, becoming variable in the afternoon. Seas around 1 foot. Nearshore waters smooth. Isolated showers. SUNDAY NIGHT Northwest winds near 5 knots, increasing to near 10 knots. Seas around 1 foot. Nearshore waters smooth, becoming a light chop. Isolated showers. MONDAY Northwest winds 10 to 15 knots, becoming northwest to north and increasing to 25 to 30 knots in the afternoon. Seas 1 to 2 feet, building to 2 to 3 feet. West of Cosgrove Shoal Light, seas 2 to 3 feet, building to 5 to 7 feet, occasionally to 9 feet. Nearshore waters a light to moderate chop, becoming extremely rough. Isolated showers. MONDAY NIGHT Northwest to north winds 25 to 30 knots, becoming north. Seas 2 to 4 feet, occasionally to 5 feet, except 6 to 9 feet, occasionally to 11 feet west of Cosgrove Shoal Light. Nearshore waters extremely rough. TUESDAY North to northeast winds 25 to 30 knots, becoming northeast and decreasing to 20 to 25 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet, except 5 to 8 feet, occasionally to 10 feet west of Cosgrove Shoal Light. Nearshore waters extremely rough, becoming very rough. TUESDAY NIGHT Northeast winds near 20 knots. Seas 2 to 4 feet, occasionally to 5 feet, except 4 to 6 feet, occasionally to 8 feet west of Cosgrove Shoal Light. Nearshore waters rough. WEDNESDAY Northeast to east winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet, except 4 to 5 feet, occasionally to 6 feet west of Cosgrove Shoal Light. Nearshore waters choppy. WEDNESDAY NIGHT Northeast winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy. $$