GMZ005-271530-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1026 PM EST Wed Nov 26 2025
.SYNOPSIS...A surface ridge is pulling away from the Florida Keys
and has resulted the pressure field weakening. This has lead to
breezes slackening to light to gentle from the east to southeast.
A cold front associated with a deepening trough will push through
the Florida Keys coastal waters late on Thursday. Breezes will
freshen drastically late Thursday night in the wake of the front,
with fresh to strong breezes and an increase in shower activity
expected through Saturday night. Breezes will begin to slacken by
Sunday.
The Approximate Shoreward Edge of the Gulf Stream as of November
22...
35 NM South of Dry Tortugas Light...on Loggerhead Key.
12 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
6 NM South of Sand Key Light...off Key West.
7 NM South of Looe Key...off Big Pine Key.
8 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.
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.
$$
GMZ032-035-271530- 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- 1026 PM EST Wed Nov 26 2025 OVERNIGHT Variable winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. Scattered showers and isolated thunderstorms. THURSDAY Northeast winds near 5 knots, becoming northwest to north 10 to 15 knots in the afternoon. Seas 1 foot or less. West of the Marquesas Keys, seas building to 1 to 2 feet. Nearshore waters smooth, becoming a light to moderate chop. Scattered showers and isolated thunderstorms. THURSDAY NIGHT North winds 15 to 20 knots, becoming north to northeast near 25 knots after midnight. Seas 1 to 2 feet, building to 3 to 5 feet, occasionally to 6 feet. West of the Marquesas Keys, seas 2 to 3 feet, building to 5 to 7 feet, occasionally to 9 feet. Nearshore waters choppy, becoming extremely rough. Scattered showers. FRIDAY North to northeast winds near 25 knots, decreasing to 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 6 to 9 feet, occasionally to 11 feet west of the Marquesas Keys. Nearshore waters extremely rough, becoming very rough. Isolated showers. FRIDAY NIGHT Northeast winds 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 5 to 7 feet, occasionally to 9 feet west of the Marquesas Keys. Nearshore waters very rough. Isolated showers. SATURDAY Northeast to east winds near 20 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 4 to 6 feet, occasionally to 8 feet west of the Marquesas Keys. Nearshore waters rough. Isolated showers. SATURDAY NIGHT East winds near 20 knots, decreasing to 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet, except 4 to 5 feet, occasionally to 6 feet west of the Marquesas Keys. Nearshore waters rough, becoming choppy. Scattered showers. SUNDAY East winds near 15 knots, decreasing to 10 to 15 knots. Seas 2 to 3 feet, subsiding to 1 to 2 feet. West of the Marquesas Keys, seas 3 to 4 feet, subsiding to 2 to 3 feet. Nearshore waters a moderate chop, becoming a light to moderate chop. Isolated showers. SUNDAY NIGHT East to southeast winds near 10 knots. Seas 1 to 2 feet, subsiding to around 1 foot. Nearshore waters a light chop. Isolated showers. MONDAY East to southeast winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. Isolated showers. MONDAY NIGHT Northeast to east winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. $$
GMZ032-035-271530- 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- 1026 PM EST Wed Nov 26 2025 OVERNIGHT Variable winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. Scattered showers and isolated thunderstorms. THURSDAY Northeast winds near 5 knots, becoming northwest to north 10 to 15 knots in the afternoon. Seas 1 foot or less. West of the Marquesas Keys, seas building to 1 to 2 feet. Nearshore waters smooth, becoming a light to moderate chop. Scattered showers and isolated thunderstorms. THURSDAY NIGHT North winds 15 to 20 knots, becoming north to northeast near 25 knots after midnight. Seas 1 to 2 feet, building to 3 to 5 feet, occasionally to 6 feet. West of the Marquesas Keys, seas 2 to 3 feet, building to 5 to 7 feet, occasionally to 9 feet. Nearshore waters choppy, becoming extremely rough. Scattered showers. FRIDAY North to northeast winds near 25 knots, decreasing to 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 6 to 9 feet, occasionally to 11 feet west of the Marquesas Keys. Nearshore waters extremely rough, becoming very rough. Isolated showers. FRIDAY NIGHT Northeast winds 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 5 to 7 feet, occasionally to 9 feet west of the Marquesas Keys. Nearshore waters very rough. Isolated showers. SATURDAY Northeast to east winds near 20 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 4 to 6 feet, occasionally to 8 feet west of the Marquesas Keys. Nearshore waters rough. Isolated showers. SATURDAY NIGHT East winds near 20 knots, decreasing to 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet, except 4 to 5 feet, occasionally to 6 feet west of the Marquesas Keys. Nearshore waters rough, becoming choppy. Scattered showers. SUNDAY East winds near 15 knots, decreasing to 10 to 15 knots. Seas 2 to 3 feet, subsiding to 1 to 2 feet. West of the Marquesas Keys, seas 3 to 4 feet, subsiding to 2 to 3 feet. Nearshore waters a moderate chop, becoming a light to moderate chop. Isolated showers. SUNDAY NIGHT East to southeast winds near 10 knots. Seas 1 to 2 feet, subsiding to around 1 foot. Nearshore waters a light chop. Isolated showers. MONDAY East to southeast winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. Isolated showers. MONDAY NIGHT Northeast to east winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. $$