GMZ005-051530-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1030 PM EST Sun Jan 4 2026
.SYNOPSIS...A vanishingly weak front will wash out across the
our area overnight, resulting in light north to northeast breezes.
An area of high pressure will then slide eastward into the
central North Atlantic. As a result, light to gentle northeast to
east breezes will gradually veer to the east to southeast and
freshen for the middle and latter part of next week.
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.
$$
GMZ042>044-051530- Hawk Channel from Ocean Reef to Craig Key out to the reef- Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef- Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef- 1030 PM EST Sun Jan 4 2026 OVERNIGHT North to northeast winds 5 to 10 knots. Seas 1 to 2 feet, except around 2 feet west of Cosgrove Shoal Light. Nearshore waters smooth to a light chop. MONDAY THROUGH TUESDAY Northeast to east winds 5 to 10 knots. Seas 1 to 2 feet. Nearshore waters smooth to a light chop. Isolated showers. TUESDAY NIGHT Northeast to east winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. WEDNESDAY Northeast to east winds 5 to 10 knots, increasing to near 10 knots. Seas around 1 foot, building to 1 to 2 feet. Nearshore waters smooth to a light chop, becoming a light chop. Isolated showers. WEDNESDAY NIGHT East winds near 10 knots. Seas 1 to 2 feet, except around 2 feet west of Cosgrove Shoal Light. Nearshore waters a light chop. THURSDAY East to southeast winds near 10 knots, increasing to 10 to 15 knots. Seas around 2 feet. Nearshore waters a light chop, becoming a light to moderate chop. Isolated showers. THURSDAY NIGHT East to southeast winds 10 to 15 knots, increasing to near 15 knots. Seas around 2 feet, building to 2 to 3 feet. Nearshore waters a light to moderate chop, becoming a moderate chop. FRIDAY East to southeast winds 10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate chop. FRIDAY NIGHT East winds 10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate chop. Isolated showers. $$
GMZ042>044-051530- 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- 1030 PM EST Sun Jan 4 2026 OVERNIGHT North to northeast winds 5 to 10 knots. Seas 1 to 2 feet, except around 2 feet west of Cosgrove Shoal Light. Nearshore waters smooth to a light chop. MONDAY THROUGH TUESDAY Northeast to east winds 5 to 10 knots. Seas 1 to 2 feet. Nearshore waters smooth to a light chop. Isolated showers. TUESDAY NIGHT Northeast to east winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. WEDNESDAY 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. Isolated showers. WEDNESDAY NIGHT East winds near 10 knots. Seas 1 to 2 feet, except around 2 feet west of Cosgrove Shoal Light. Nearshore waters a light chop. THURSDAY East to southeast winds near 10 knots, increasing to 10 to 15 knots. Seas around 2 feet. Nearshore waters a light chop, becoming a light to moderate chop. Isolated showers. THURSDAY NIGHT East to southeast winds 10 to 15 knots, increasing to near 15 knots. Seas around 2 feet, building to 2 to 3 feet. Nearshore waters a light to moderate chop, becoming a moderate chop. FRIDAY East to southeast winds 10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate chop. FRIDAY NIGHT East winds 10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate chop. Isolated showers. $$