GMZ005-030930-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
427 PM EST Mon Mar 2 2026
.SYNOPSIS...
A large and robust high centered over New England will dive
southeastward off the Eastern Seaboard and into the North
Atlantic tonight. This will usher in a prolonged period of
moderate to fresh breezes across the Florida Keys marine zones for
the next several days, as the center of the high becomes
stationary over the central North Atlantic.
The Approximate Shoreward Edge of the Gulf Stream as of March 1...
47 NM South of Dry Tortugas Light...on Loggerhead Key.
16 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
9 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.
8 NM Southeast of Alligator Reef Light...off Islamorada.
7 NM Southeast of Molasses Reef Light...off Key Largo.
8 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.
$$
GMZ052>055-072>075-030930- Straits of Florida from Ocean Reef to Craig Key out 20 NM- Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM- Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out- Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out- 427 PM EST Mon Mar 2 2026 SMALL CRAFT SHOULD EXERCISE CAUTION FOR INCREASING WINDS AND BUILDING SEAS TONIGHT Northeast to east winds near 15 knots, increasing to 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet, building to 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast to east 5 feet at 6 seconds. Isolated showers. TUESDAY Northeast to east winds near 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast to east 6 feet at 6 seconds. Isolated showers. TUESDAY NIGHT East winds near 15 knots, increasing to 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast to east 5 feet at 7 seconds. Isolated showers. WEDNESDAY East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Isolated showers. WEDNESDAY NIGHT East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Scattered showers. THURSDAY East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Isolated showers. THURSDAY NIGHT East to southeast winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Isolated showers. FRIDAY THROUGH SATURDAY NIGHT East to southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Scattered showers. $$
GMZ052>055-072>075-030930- 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- 427 PM EST Mon Mar 2 2026 SMALL CRAFT SHOULD EXERCISE CAUTION FOR INCREASING WINDS AND BUILDING SEAS TONIGHT Northeast to east winds near 15 knots, increasing to 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet, building to 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast to east 5 feet at 6 seconds. Isolated showers. TUESDAY Northeast to east winds near 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast to east 6 feet at 6 seconds. Isolated showers. TUESDAY NIGHT East winds near 15 knots, increasing to 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast to east 5 feet at 7 seconds. Isolated showers. WEDNESDAY East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Isolated showers. WEDNESDAY NIGHT East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Scattered showers. THURSDAY East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Isolated showers. THURSDAY NIGHT East to southeast winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Isolated showers. FRIDAY THROUGH SATURDAY NIGHT East to southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Scattered showers. $$