GMZ005-260930-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
432 PM EST Thu Dec 25 2025
.SYNOPSIS...High pressure centered over the northeastern Gulf will
support gentle to moderate north to northeast breezes tonight.
The high will weaken as it continues to drift slowly southeastward
through the weekend, leading to slackening breezes.
The Approximate Shoreward Edge of the Gulf Stream as of December
21...
24 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.
16 NM South of Looe Key...off Big Pine Key.
17 NM Southeast of Sombrero Key Light...off Marathon.
18 NM Southeast of Alligator Reef Light...off Islamorada.
11 NM Southeast of Molasses Reef Light...off Key Largo.
6 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.
$$
GMZ032-035-260930- Bayside and Gulfside from Craig Key to west end of Seven Mile Bridge- Gulf of America from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms- 432 PM EST Thu Dec 25 2025 TONIGHT North winds 5 to 10 knots, becoming north to northeast and increasing to near 10 knots. Seas 1 to 2 feet, except around 2 feet west of the Marquesas Keys. Nearshore waters smooth to a light chop, becoming a light chop. FRIDAY North to northeast winds near 10 knots, decreasing to 5 to 10 knots. Seas 1 to 2 feet, subsiding to around 1 foot. Nearshore waters a light chop, becoming smooth to a light chop. FRIDAY NIGHT North to northeast winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. SATURDAY North winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. SATURDAY NIGHT North winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. SUNDAY Northeast to east winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. SUNDAY NIGHT Northeast to east winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. MONDAY Variable winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. MONDAY NIGHT Northwest winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. TUESDAY Northwest winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 1 foot or less, building to 1 to 2 feet. Nearshore waters smooth to a light chop, becoming a light to moderate chop. Isolated showers. TUESDAY NIGHT Northwest to north winds near 15 knots, increasing to 15 to 20 knots. Seas 2 to 3 feet. Nearshore waters a moderate chop, becoming choppy. Isolated showers. $$
GMZ032-035-260930- Bayside and Gulfside from Craig Key to west end of Seven Mile Bridge- Gulf of America from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms- 432 PM EST Thu Dec 25 2025 TONIGHT North winds 5 to 10 knots, becoming north to northeast and increasing to near 10 knots. Seas 1 to 2 feet, except around 2 feet west of the Marquesas Keys. Nearshore waters smooth to a light chop, becoming a light chop. FRIDAY North to northeast winds near 10 knots, decreasing to 5 to 10 knots. Seas 1 to 2 feet, subsiding to around 1 foot. Nearshore waters a light chop, becoming smooth to a light chop. FRIDAY NIGHT North to northeast winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. SATURDAY North winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. SATURDAY NIGHT North winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. SUNDAY Northeast to east winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. SUNDAY NIGHT Northeast to east winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. MONDAY Variable winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. MONDAY NIGHT Northwest winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. TUESDAY Northwest winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 1 foot or less, building to 1 to 2 feet. Nearshore waters smooth to a light chop, becoming a light to moderate chop. Isolated showers. TUESDAY NIGHT Northwest to north winds near 15 knots, increasing to 15 to 20 knots. Seas 2 to 3 feet. Nearshore waters a moderate chop, becoming choppy. Isolated showers. $$