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.
$$
GMZ052>055-072>075-280230- Straits of Florida from Ocean Reef to Craig Key out 20 NM- Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM- Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out- Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out- 1022 AM EDT Mon Apr 27 2026 THIS AFTERNOON North to northeast winds near 10 knots. Seas 1 to 2 feet. Wave Detail: Northeast to east 1 foot at 4 seconds. A slight chance of showers. TONIGHT North to northeast winds near 10 knots, becoming northeast to east and increasing to 10 to 15 knots. Seas 1 to 2 feet, building to 2 to 3 feet. Wave Detail: Northeast to east 2 feet at 4 seconds. A slight chance of showers. TUESDAY Northeast to east winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast to east 2 feet at 4 seconds. A slight chance of showers. TUESDAY NIGHT East winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. A slight chance of showers. WEDNESDAY East to southeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. A slight chance of showers. WEDNESDAY NIGHT East to southeast winds 10 to 15 knots, decreasing to near 10 knots. Seas 2 to 3 feet, subsiding to 1 to 2 feet. A slight chance of showers. THURSDAY Southeast winds 5 to 10 knots, becoming northeast. Seas 1 to 2 feet. A slight chance of showers. THURSDAY NIGHT Northeast winds 5 to 10 knots, becoming east. Seas 1 to 2 feet. FRIDAY East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. FRIDAY NIGHT East winds near 10 knots, becoming southeast after midnight. Seas around 2 feet. $$
GMZ052>055-072>075-280230- Straits of Florida from Ocean Reef to Craig Key out 20 NM- Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM- Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out- Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out- 1022 AM EDT Mon Apr 27 2026 THIS AFTERNOON North to northeast winds near 10 knots. Seas 1 to 2 feet. Wave Detail: Northeast to east 1 foot at 4 seconds. A slight chance of showers. TONIGHT North to northeast winds near 10 knots, becoming northeast to east and increasing to 10 to 15 knots. Seas 1 to 2 feet, building to 2 to 3 feet. Wave Detail: Northeast to east 2 feet at 4 seconds. A slight chance of showers. TUESDAY Northeast to east winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast to east 2 feet at 4 seconds. A slight chance of showers. TUESDAY NIGHT East winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. A slight chance of showers. WEDNESDAY East to southeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. A slight chance of showers. WEDNESDAY NIGHT East to southeast winds 10 to 15 knots, decreasing to near 10 knots. Seas 2 to 3 feet, subsiding to 1 to 2 feet. A slight chance of showers. THURSDAY Southeast winds 5 to 10 knots, becoming northeast. Seas 1 to 2 feet. A slight chance of showers. THURSDAY NIGHT Northeast winds 5 to 10 knots, becoming east. Seas 1 to 2 feet. FRIDAY East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. FRIDAY NIGHT East winds near 10 knots, becoming southeast after midnight. Seas around 2 feet. $$