Expires:202608181430;;911666 FZUS52 KKEY 180218 CWFKEY Coastal Waters Forecast for the Florida Keys National Weather Service Key West FL 1018 PM EDT Mon Aug 17 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. The Wave Detail section highlights the period and direction of origin for the highest-energy waves, as well as any long-period swells moving in a different direction than the wind. GMZ042>044-181430- Hawk Channel from Ocean Reef to Craig Key out to the reef- Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef- Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef- 1018 PM EDT Mon Aug 17 2026 .OVERNIGHT...Variable winds near 5 knots. Seas around 1 foot. Nearshore waters smooth. .TUESDAY...Variable winds near 5 knots, becoming west to northwest. Seas around 1 foot. Nearshore waters smooth. .TUESDAY NIGHT...West to northwest winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. .WEDNESDAY...West to northwest winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. A slight chance of showers and thunderstorms. .WEDNESDAY NIGHT...West to northwest winds 5 to 10 knots, decreasing to near 5 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop, becoming smooth. A slight chance of showers and thunderstorms. .THURSDAY...Variable winds near 5 knots, becoming southwest. Seas 1 foot or less. Nearshore waters smooth. A slight chance of showers and thunderstorms. .THURSDAY NIGHT...Southeast to south winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. A slight chance of showers. .FRIDAY...Southeast to south winds near 5 knots. Seas around 1 foot. Nearshore waters smooth. .FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. A slight chance of showers. .SATURDAY...Southeast to south winds near 5 knots. Seas around 1 foot. Nearshore waters smooth. A slight chance of showers. .SATURDAY NIGHT...Southeast winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. A slight chance of showers. $$