GMZ005-280230-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1022 AM EDT Mon Apr 27 2026
.SYNOPSIS...Weak high pressure over the North Atlantic will
dominate the synoptic pattern over the Florida Keys coastal
waters for the next several days. This will support generally
light to gentle north to northeast breezes this morning, becoming
light and variable at times. Breezes may briefly freshen tonight
through Wednesday, before becoming light to gentle again for the
end of the work week.
The Approximate Shoreward Edge of the Gulf Stream as of April 22...
19 NM South of Dry Tortugas Light...on Loggerhead Key.
11 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
8 NM South of Sand Key Light...off Key West.
13 NM South of Looe Key...off Big Pine Key.
19 NM Southeast of Sombrero Key Light...off Marathon.
24 NM Southeast of Alligator Reef Light...off Islamorada.
26 NM Southeast of Molasses Reef Light...off Key Largo.
14 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.
$$
GMZ032-035-280230- Bayside and Gulfside from Craig Key to west end of Seven Mile Bridge- Gulf of America from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms- 1022 AM EDT Mon Apr 27 2026 THIS AFTERNOON North to northeast winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. A slight chance of showers. TONIGHT North winds 5 to 10 knots, becoming northeast to east and increasing to 10 to 15 knots after midnight. Seas around 1 foot, building to 1 to 2 feet. Nearshore waters smooth to a light chop, becoming a light to moderate chop. A slight chance of showers. TUESDAY Northeast to east winds 10 to 15 knots. Seas 1 to 2 feet, except around 2 feet west of the Marquesas Keys. Nearshore waters a light to moderate chop. A slight chance of showers. TUESDAY NIGHT East winds 10 to 15 knots. Seas 1 to 2 feet, except around 2 feet west of the Marquesas Keys. Nearshore waters a light to moderate chop. A slight chance of showers. WEDNESDAY East to southeast winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. A slight chance of showers. WEDNESDAY NIGHT Southeast winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. A slight chance of showers. THURSDAY Southeast to south winds near 5 knots, becoming southwest to west and increasing to 5 to 10 knots in the afternoon. Seas 1 foot or less. Nearshore waters smooth, becoming smooth to a light chop. A slight chance of showers. THURSDAY NIGHT Northwest to north winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. FRIDAY Northeast to east winds near 5 knots, becoming southeast to south. Seas 1 foot or less. Nearshore waters smooth. FRIDAY NIGHT Southeast winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. $$
GMZ032-035-280230- 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- 1022 AM EDT Mon Apr 27 2026 THIS AFTERNOON North to northeast winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. A slight chance of showers. TONIGHT North winds 5 to 10 knots, becoming northeast to east and increasing to 10 to 15 knots after midnight. Seas around 1 foot, building to 1 to 2 feet. Nearshore waters smooth to a light chop, becoming a light to moderate chop. A slight chance of showers. TUESDAY Northeast to east winds 10 to 15 knots. Seas 1 to 2 feet, except around 2 feet west of the Marquesas Keys. Nearshore waters a light to moderate chop. A slight chance of showers. TUESDAY NIGHT East winds 10 to 15 knots. Seas 1 to 2 feet, except around 2 feet west of the Marquesas Keys. Nearshore waters a light to moderate chop. A slight chance of showers. WEDNESDAY East to southeast winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. A slight chance of showers. WEDNESDAY NIGHT Southeast winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. A slight chance of showers. THURSDAY Southeast to south winds near 5 knots, becoming southwest to west and increasing to 5 to 10 knots in the afternoon. Seas 1 foot or less. Nearshore waters smooth, becoming smooth to a light chop. A slight chance of showers. THURSDAY NIGHT Northwest to north winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. FRIDAY Northeast to east winds near 5 knots, becoming southeast to south. Seas 1 foot or less. Nearshore waters smooth. FRIDAY NIGHT Southeast winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. $$