GMZ005-160830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
419 PM EDT Tue Jul 15 2025
.SYNOPSIS...As a weak low pressure shifts off to the west and
into the Gulf, high pressure will build in behind it strengthening
the pressure gradient. This will lead to gentle to moderate
breezes tonight. High pressure remains anchored over the central
Atlantic with its western periphery extending into the Keys
through the weekend with gentle to moderate east to southeast
breezes continuing, occasionally becoming moderate to fresh.
The Approximate Shoreward Edge of the Gulf Stream as of July 15...
18 NM South of Dry Tortugas Light...on Loggerhead Key.
3 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
1 NM South of Sand Key Light...off Key West.
4 NM South of Looe Key...off Big Pine Key.
4 NM Southeast of Sombrero Key Light...off Marathon.
10 NM Southeast of Alligator Reef Light...off Islamorada.
6 NM Southeast of Molasses Reef Light...off Key Largo.
3 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.
$$
GMZ052>055-072>075-160830- 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- 419 PM EDT Tue Jul 15 2025 TONIGHT Variable winds 5 to 10 knots early, becoming southeast increasing to 10 to 15 knots. Seas 1 foot, building to 2 to 3 feet. Wave Detail: East to southeast 1 foot at 3 seconds, becoming east to southeast 2 feet at 3 seconds. Numerous showers and scattered thunderstorms. WEDNESDAY Southeast winds 10 to 15 knots, becoming east to southeast and decreasing to near 10 knots. Seas 2 to 3 feet. Wave Detail: East to southeast 2 feet at 4 seconds. Numerous showers and scattered thunderstorms. WEDNESDAY NIGHT East to southeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East to southeast 4 feet at 5 seconds. Scattered showers and isolated thunderstorms. THURSDAY East to southeast winds 15 to 20 knots, decreasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers and isolated thunderstorms. THURSDAY NIGHT East winds 15 to 20 knots, becoming east to southeast. Seas 3 to 5 feet, occasionally to 6 feet. Scattered showers and isolated thunderstorms. FRIDAY East to southeast winds 15 to 20 knots, decreasing to near 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers and isolated thunderstorms. FRIDAY NIGHT East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers and isolated thunderstorms. SATURDAY East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers and thunderstorms. SATURDAY NIGHT East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers and isolated thunderstorms. SUNDAY East winds near 10 knots. Seas 2 to 3 feet. Scattered showers and isolated thunderstorms. SUNDAY NIGHT East winds 5 to 10 knots. Seas 2 to 3 feet. Scattered showers and isolated thunderstorms. $$
GMZ052>055-072>075-160830- 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- 419 PM EDT Tue Jul 15 2025 TONIGHT Variable winds 5 to 10 knots early, becoming southeast increasing to 10 to 15 knots. Seas 1 foot, building to 2 to 3 feet. Wave Detail: East to southeast 1 foot at 3 seconds, becoming east to southeast 2 feet at 3 seconds. Numerous showers and scattered thunderstorms. WEDNESDAY Southeast winds 10 to 15 knots, becoming east to southeast and decreasing to near 10 knots. Seas 2 to 3 feet. Wave Detail: East to southeast 2 feet at 4 seconds. Numerous showers and scattered thunderstorms. WEDNESDAY NIGHT East to southeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East to southeast 4 feet at 5 seconds. Scattered showers and isolated thunderstorms. THURSDAY East to southeast winds 15 to 20 knots, decreasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers and isolated thunderstorms. THURSDAY NIGHT East winds 15 to 20 knots, becoming east to southeast. Seas 3 to 5 feet, occasionally to 6 feet. Scattered showers and isolated thunderstorms. FRIDAY East to southeast winds 15 to 20 knots, decreasing to near 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers and isolated thunderstorms. FRIDAY NIGHT East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers and isolated thunderstorms. SATURDAY East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers and thunderstorms. SATURDAY NIGHT East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers and isolated thunderstorms. SUNDAY East winds near 10 knots. Seas 2 to 3 feet. Scattered showers and isolated thunderstorms. SUNDAY NIGHT East winds 5 to 10 knots. Seas 2 to 3 feet. Scattered showers and isolated thunderstorms. $$