GMZ005-270930-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1030 PM EST Fri Dec 26 2025
.SYNOPSIS...High pressure centered over the northeastern Gulf
will support light to gentle mainly north to northeast breezes.
The high will weaken as it drifts slowly southeastward through the
weekend, leading to slackening breezes. A potent cold front is
expected to move through the Keys towards the middle part of next
week. This will lead to freshening northerly breezes throughout
all the Florida Keys coastal waters.
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.
$$
GMZ052>055-072>075-270930- Straits of Florida from Ocean Reef to Craig Key out 20 NM- Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM- Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out- Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out- 1030 PM EST Fri Dec 26 2025 OVERNIGHT North to northeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Northeast 2 feet at 4 seconds. Isolated showers. SATURDAY North to northeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Northeast 1 foot at 4 seconds. SATURDAY NIGHT Northeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Northeast to east 1 foot at 4 seconds. SUNDAY Northeast to east winds 5 to 10 knots. Seas 1 to 2 feet. SUNDAY NIGHT East winds 5 to 10 knots. Seas 1 to 2 feet. MONDAY East to southeast winds 5 to 10 knots, becoming variable and decreasing to 5 knots. Seas 1 to 2 feet. MONDAY NIGHT North winds 5 to 10 knots. Seas 1 to 2 feet. TUESDAY Northwest to north winds 5 to 10 knots, increasing to near 10 knots. Seas 1 to 2 feet. Isolated showers. TUESDAY NIGHT Northwest to north winds 10 to 15 knots, increasing to 15 to 20 knots. Seas 2 to 3 feet, building to 3 to 5 feet, occasionally 6 feet. Isolated showers. WEDNESDAY North winds 15 to 20 knots, decreasing to near 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Isolated showers. WEDNESDAY NIGHT North winds 10 to 15 knots. Seas 2 to 3 feet. Isolated showers. $$
GMZ052>055-072>075-270930- 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- 1030 PM EST Fri Dec 26 2025 OVERNIGHT North to northeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Northeast 2 feet at 4 seconds. Isolated showers. SATURDAY North to northeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Northeast 1 foot at 4 seconds. SATURDAY NIGHT Northeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Northeast to east 1 foot at 4 seconds. SUNDAY Northeast to east winds 5 to 10 knots. Seas 1 to 2 feet. SUNDAY NIGHT East winds 5 to 10 knots. Seas 1 to 2 feet. MONDAY East to southeast winds 5 to 10 knots, becoming variable and decreasing to 5 knots. Seas 1 to 2 feet. MONDAY NIGHT North winds 5 to 10 knots. Seas 1 to 2 feet. TUESDAY Northwest to north winds 5 to 10 knots, increasing to near 10 knots. Seas 1 to 2 feet. Isolated showers. TUESDAY NIGHT Northwest to north winds 10 to 15 knots, increasing to 15 to 20 knots. Seas 2 to 3 feet, building to 3 to 5 feet, occasionally 6 feet. Isolated showers. WEDNESDAY North winds 15 to 20 knots, decreasing to near 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Isolated showers. WEDNESDAY NIGHT North winds 10 to 15 knots. Seas 2 to 3 feet. Isolated showers. $$