GMZ005-162130-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
424 AM EST Sun Nov 16 2025
.SYNOPSIS...Weak high pressure will continue to promote light to
gentle breezes today through Monday. Due to the weak flow, there
may be periods of light and variable breezes, mainly in the
afternoons. Another high pressure system will traverse across the
eastern United States early this week while slowly strengthening.
This will allow for freshening northeast to east breezes for the
middle and latter part of the week.
The Approximate Shoreward Edge of the Gulf Stream as of November 14...
54 NM South of Dry Tortugas Light...on Loggerhead Key.
23 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
19 NM South of Sand Key Light...off Key West.
17 NM South of Looe Key...off Big Pine Key.
15 NM Southeast of Sombrero Key Light...off Marathon.
4 NM Southeast of Alligator Reef Light...off Islamorada.
1 NM Southeast of Molasses Reef Light...off Key Largo.
1 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.
$$
GMZ042>044-162130- Hawk Channel from Ocean Reef to Craig Key out to the reef- Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef- Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef- 424 AM EST Sun Nov 16 2025 TODAY North to northeast winds 5 to 10 knots, becoming northwest to north and decreasing to near 5 knots in the afternoon. Seas 1 foot or less. Nearshore waters smooth to a light chop, becoming smooth. TONIGHT Northwest to north winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. MONDAY North to northeast winds 5 to 10 knots, becoming variable and decreasing to near 5 knots in the afternoon. Seas 1 foot or less. Nearshore waters smooth to a light chop, becoming smooth. MONDAY NIGHT Variable winds near 5 knots, becoming northeast and increasing to 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth, becoming smooth to a light chop. TUESDAY Northeast to east winds 5 to 10 knots, increasing to near 10 knots. Seas around 1 foot, building to 1 to 2 feet. Nearshore waters smooth to a light chop, becoming a light chop. TUESDAY NIGHT Northeast to east winds 10 to 15 knots. Seas 1 to 2 feet, except building to 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters a light to moderate chop. WEDNESDAY Northeast to east winds 10 to 15 knots, increasing to near 15 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate chop, becoming a moderate chop. WEDNESDAY NIGHT East winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy. THURSDAY AND THURSDAY NIGHT East winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Nearshore waters choppy. $$
GMZ042>044-162130- 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- 424 AM EST Sun Nov 16 2025 TODAY North to northeast winds 5 to 10 knots, becoming northwest to north and decreasing to near 5 knots in the afternoon. Seas 1 foot or less. Nearshore waters smooth to a light chop, becoming smooth. TONIGHT Northwest to north winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. MONDAY North to northeast winds 5 to 10 knots, becoming variable and decreasing to near 5 knots in the afternoon. Seas 1 foot or less. Nearshore waters smooth to a light chop, becoming smooth. MONDAY NIGHT Variable winds near 5 knots, becoming northeast and increasing to 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth, becoming smooth to a light chop. TUESDAY Northeast to east winds 5 to 10 knots, increasing to near 10 knots. Seas around 1 foot, building to 1 to 2 feet. Nearshore waters smooth to a light chop, becoming a light chop. TUESDAY NIGHT Northeast to east winds 10 to 15 knots. Seas 1 to 2 feet, except building to 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters a light to moderate chop. WEDNESDAY Northeast to east winds 10 to 15 knots, increasing to near 15 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate chop, becoming a moderate chop. WEDNESDAY NIGHT East winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy. THURSDAY AND THURSDAY NIGHT East winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Nearshore waters choppy. $$