GMZ005-022130-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
422 AM EST Fri Jan 2 2026
.SYNOPSIS...High pressure over the central Gulf will maintain
light to gentle north to northeast breezes this morning. As the
high moves overhead this afternoon, breezes will become light and
variable. A weak front is expected to pass through the Key late
Sunday/Sunday evening with a return of northerly breezes. In the
wake of the front, high pressure will slide across the eastern
United States. This will maintain northeast breezes initially
before becoming mainly easterly as the high moves out into the
Atlantic.
The Approximate Shoreward Edge of the Gulf Stream as of January
01...
14 NM South of Dry Tortugas Light...on Loggerhead Key.
14 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
14 NM South of Sand Key Light...off Key West.
13 NM South of Looe Key...off Big Pine Key.
12 NM Southeast of Sombrero Key Light...off Marathon.
9 NM Southeast of Alligator Reef Light...off Islamorada.
3 NM Southeast of Molasses Reef Light...off Key Largo.
2 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.
$$
GMZ042>044-022130- Hawk Channel from Ocean Reef to Craig Key out to the reef- Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef- Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef- 422 AM EST Fri Jan 2 2026 TODAY North to northeast winds 5 to 10 knots, becoming variable near 5 knots this afternoon. Seas 1 to 2 feet, subsiding to around 1 foot. Nearshore waters smooth to a light chop, becoming smooth. TONIGHT Variable winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. SATURDAY Variable winds near 5 knots, becoming southwest in the afternoon. Seas 1 foot or less. Nearshore waters smooth. SATURDAY NIGHT Southwest to west winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. Isolated showers. SUNDAY Southwest to west winds near 10 knots, becoming west 10 to 15 knots. Seas around 1 foot, except building to 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters a light chop, becoming a light to moderate chop. Isolated showers. SUNDAY NIGHT West to northwest winds near 10 knots, becoming north. Seas 1 to 2 feet, except 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters a light chop. Isolated showers. MONDAY North to northeast winds near 10 knots, becoming northeast 5 to 10 knots. Seas 1 to 2 feet, except 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters a light chop, becoming smooth to a light chop. MONDAY NIGHT Northeast to east winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. TUESDAY AND TUESDAY NIGHT East winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. $$
GMZ042>044-022130- 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- 422 AM EST Fri Jan 2 2026 TODAY North to northeast winds 5 to 10 knots, becoming variable near 5 knots this afternoon. Seas 1 to 2 feet, subsiding to around 1 foot. Nearshore waters smooth to a light chop, becoming smooth. TONIGHT Variable winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. SATURDAY Variable winds near 5 knots, becoming southwest in the afternoon. Seas 1 foot or less. Nearshore waters smooth. SATURDAY NIGHT Southwest to west winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. Isolated showers. SUNDAY Southwest to west winds near 10 knots, becoming west 10 to 15 knots. Seas around 1 foot, except building to 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters a light chop, becoming a light to moderate chop. Isolated showers. SUNDAY NIGHT West to northwest winds near 10 knots, becoming north. Seas 1 to 2 feet, except 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters a light chop. Isolated showers. MONDAY North to northeast winds near 10 knots, becoming northeast 5 to 10 knots. Seas 1 to 2 feet, except 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters a light chop, becoming smooth to a light chop. MONDAY NIGHT Northeast to east winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. TUESDAY AND TUESDAY NIGHT East winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. $$