GMZ043 Expires:202507091445;;119474 Fzus52 Kkey 090217 Cwfkey
coastal waters forecast for the florida keys national weather service key west fl 1017 pm edt Tue jul 8 2025
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.
gmz042>044-091445- 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- 1017 pm edt Tue jul 8 2025
Overnight..Northeast to east winds 10 to 15 knots, decreasing to near 10 knots. Seas 1 to 2 feet. NEarshore waters a light to moderate chop, becoming a light chop. Isolated showers and Thunderstorms.
Wednesday..Northeast to east winds near 10 knots, decreasing to 5 to 10 knots. Seas 1 to 2 feet, subsiding to around 1 foot. NEarshore waters a light chop, becoming smooth to a light chop. Scattered showers and isolated Thunderstorms.
Wednesday night..East to southeast winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. Scattered showers and isolated Thunderstorms.
Thursday..East to southeast winds 5 to 10 knots, increasing to near 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop, becoming a light chop. Scattered showers and Thunderstorms.
Thursday night..East to southeast winds increasing to 10 to 15 knots. Seas building to 1 to 2 feet. NEarshore waters becoming a light to moderate chop. Scattered showers and Thunderstorms.
Friday..East to southeast winds 10 to 15 knots. Seas around 2 feet. NEarshore waters a light to moderate chop. Scattered showers and isolated Thunderstorms.
Friday night..East to southeast winds 10 to 15 knots. Seas 1 to 2 feet. NEarshore waters a light to moderate chop. Scattered showers and isolated Thunderstorms.
Saturday..East to southeast winds decreasing to near 10 knots. Seas 1 to 2 feet. NEarshore waters becoming a light chop. Scattered showers and isolated Thunderstorms.
Saturday night..East to southeast winds 5 to 10 knots. Seas 1 to 2 feet, subsiding to around 1 foot. NEarshore waters smooth to a light chop. Scattered showers and isolated Thunderstorms.
Sunday..Southeast to south winds near 5 knots. Seas around 1 foot. NEarshore waters smooth. Scattered showers and isolated Thunderstorms.
Sunday night..Southwest to west winds near 5 knots, becoming southeast to south. Seas around 1 foot. NEarshore waters smooth. Scattered showers and isolated Thunderstorms.

GMZ005 Synopsis For Keys Coastal Waters From Ocean Reef To Dry Tortugas 1017 Pm Edt Tue Jul 8 2025
Synopsis..While the atlantic high will maintain gentle to moderate breezes across the florida keys tonight, breezes will slacken to gentle in the early morning. An easterly wave will approach the florida keys on Wednesday along with a plume of deep tropical moisture. Expect increased shower coverage from Wednesday night through the weekend.
the approximate shoreward edge of the gulf stream as of july 8...
14 nm south of dry tortugas light...on loggerhead key. 5 nm south of cosgrove shoal light...off the marquesas keys. 4 nm south of sand key light...off key west. 4 nm south of looe key...off big pine key. 5 nm southeast of sombrero key light...off marathon. 6 nm southeast of alligator reef light...off islamorada. 3 nm southeast of molasses reef light...off key largo. 4 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.