Expires:202605202030;;338268 FZUS52 KKEY 200828 CWFKEY Coastal Waters Forecast for the Florida Keys National Weather Service Key West FL 428 AM EDT Wed May 20 2026 Florida Bay, Hawk Channel and Straits of Florida from Ocean Reef to south of Dry Tortugas, and the extreme southeastern Gulf of America, including The Florida Keys National Marine Sanctuary Seas are given as significant wave height, which is the average height of the highest 1/3 of the waves. Individual waves may be more than twice the significant wave height. Wave Detail will include details about the period and direction of origin for the highest energy waves. Long-period swells coming from a different direction than the wind would be included in the Wave Detail. GMZ052>055-072>075-202030- 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- 428 AM EDT Wed May 20 2026 .TODAY...East winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 5 seconds. A chance of showers with a slight chance of thunderstorms. .TONIGHT...East winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 5 seconds. A slight chance of showers and thunderstorms. .THURSDAY...East winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 5 seconds. A slight chance of showers and thunderstorms. .THURSDAY NIGHT...East winds near 15 knots, becoming east to southeast. Seas 3 to 4 feet, occasionally to 5 feet. A slight chance of showers and thunderstorms. .FRIDAY...East to southeast winds 10 to 15 knots, becoming east. Seas 2 to 3 feet. A slight chance of showers and thunderstorms. .FRIDAY NIGHT...East winds near 15 knots, becoming east to southeast. Seas 2 to 4 feet, occasionally to 5 feet. A slight chance of showers and thunderstorms. .SATURDAY...East to southeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers and thunderstorms. .SATURDAY NIGHT...East winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. A chance of showers with a slight chance of thunderstorms. .SUNDAY...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. A slight chance of showers and thunderstorms. .SUNDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers with a slight chance of thunderstorms. $$