GMZ005-020330-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1017 AM EST Mon Dec 1 2025
.SYNOPSIS...Another large area of high pressure currently located
over the Lower Great Lakes region will continue moving eastward
through the afternoon. This will continue to promote gentle to
moderate northeast to east breezes shifting to southeasterly by
Tuesday morning as the high shifts farther east. A developing
storm system on the heels of this high will result in a weakening
of the pressure gradient across the Keys through early Wednesday.
Breezes will also clock around the compass going from southeast to
south Tuesday to northwest to north by early Wednesday. Its
corresponding cold front is expected to press through the Keys mid
to late week resulting in freshening north to northeast breezes.
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.
$$
GMZ042>044-020330- Hawk Channel from Ocean Reef to Craig Key out to the reef- Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef- Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef- 1017 AM EST Mon Dec 1 2025 THIS AFTERNOON East winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. TONIGHT East to southeast winds 10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate chop. Isolated showers. TUESDAY Southeast to south winds 10 to 15 knots, becoming southwest to west and decreasing to 5 to 10 knots in the afternoon. Seas 2 to 3 feet, subsiding to 1 to 2 feet. Nearshore waters a light to moderate chop, becoming smooth to a light chop. Isolated showers. TUESDAY NIGHT West to northwest winds 5 to 10 knots, becoming northwest to north. Seas around 1 foot. Nearshore waters smooth to a light chop. WEDNESDAY North winds 5 to 10 knots. Seas around 1 foot, except building to 1 to 2 feet west of Cosgrove Shoal Light. Nearshore waters smooth to a light chop. WEDNESDAY NIGHT North to northeast winds 5 to 10 knots, increasing to near 10 knots. Seas around 1 foot, except around 2 feet west of Cosgrove Shoal Light. Nearshore waters smooth to a light chop, becoming a light chop. THURSDAY Northeast winds 10 to 15 knots, becoming northeast to east. Seas 1 to 2 feet, except 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters a light to moderate chop. THURSDAY NIGHT Northeast to east winds near 15 knots. Seas 2 to 3 feet. Nearshore waters a moderate chop. FRIDAY AND FRIDAY NIGHT East to southeast winds 10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate chop. $$
GMZ042>044-020330- 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- 1017 AM EST Mon Dec 1 2025 THIS AFTERNOON East winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. TONIGHT East to southeast winds 10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate chop. Isolated showers. TUESDAY Southeast to south winds 10 to 15 knots, becoming southwest to west and decreasing to 5 to 10 knots in the afternoon. Seas 2 to 3 feet, subsiding to 1 to 2 feet. Nearshore waters a light to moderate chop, becoming smooth to a light chop. Isolated showers. TUESDAY NIGHT West to northwest winds 5 to 10 knots, becoming northwest to north. Seas around 1 foot. Nearshore waters smooth to a light chop. WEDNESDAY North winds 5 to 10 knots. Seas around 1 foot, except building to 1 to 2 feet west of Cosgrove Shoal Light. Nearshore waters smooth to a light chop. WEDNESDAY NIGHT North to northeast winds 5 to 10 knots, increasing to near 10 knots. Seas around 1 foot, except around 2 feet west of Cosgrove Shoal Light. Nearshore waters smooth to a light chop, becoming a light chop. THURSDAY Northeast winds 10 to 15 knots, becoming northeast to east. Seas 1 to 2 feet, except 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters a light to moderate chop. THURSDAY NIGHT Northeast to east winds near 15 knots. Seas 2 to 3 feet. Nearshore waters a moderate chop. FRIDAY AND FRIDAY NIGHT East to southeast winds 10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate chop. $$