Hazardous marine condition(s):
Short Term Forecast
GMZ005-090830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
421 PM EDT Fri Aug 8 2025
.SYNOPSIS...A tropical wave will continue slowly progressing
westward through the Keys today through Saturday. This will
promote light to gentle east to southeast breezes (occasionally
light to moderate breezes) as well as above normal rain and
thunder chances. As the wave continues progressing further into
the Gulf heading through the weekend, surface high pressure across
the Atlantic will slowly build into the Keys. This will result in
gentle to moderate east to southeast breezes for early next week.
The Approximate Shoreward Edge of the Gulf Stream as of August 8...
84 NM South of Dry Tortugas Light...on Loggerhead Key.
53 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
41 NM South of Sand Key Light...off Key West.
18 NM South of Looe Key...off Big Pine Key.
9 NM Southeast of Sombrero Key Light...off Marathon.
7 NM Southeast of Alligator Reef Light...off Islamorada.
3 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.
$$
GMZ032-035-090830- Bayside and Gulfside from Craig Key to west end of Seven Mile Bridge- Gulf of America from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms- 421 PM EDT Fri Aug 8 2025 TONIGHT East to southeast winds near 10 knots, becoming southeast and increasing to 10 to 15 knots. Seas 1 foot or less, building to around 1 foot, except building to 1 to 2 feet west of the Marquesas Keys. Nearshore waters a light chop, becoming a light to moderate chop. Numerous showers and scattered thunderstorms. SATURDAY Southeast winds 10 to 15 knots, becoming southeast to south and decreasing to 5 to 10 knots. Seas around 1 foot, subsiding to 1 foot or less. West of the Marquesas Keys, seas 1 to 2 feet, subsiding to around 1 foot. Nearshore waters a light to moderate chop, becoming smooth to a light chop. Numerous showers and scattered thunderstorms. SATURDAY NIGHT 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. SUNDAY Southeast winds near 10 knots, decreasing to 5 to 10 knots. Seas around 1 foot. Nearshore waters a light chop, becoming smooth to a light chop. Numerous showers and scattered thunderstorms. SUNDAY NIGHT East to southeast winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas around 1 foot. Nearshore waters smooth to a light chop, becoming a light to moderate chop. Scattered showers and isolated thunderstorms. MONDAY East to southeast winds 10 to 15 knots, decreasing to near 10 knots. Seas around 1 foot, except 1 to 2 feet west of the Marquesas Keys. Nearshore waters a light to moderate chop, becoming a light chop. Scattered showers and isolated thunderstorms. MONDAY 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. TUESDAY East to southeast winds near 10 knots. Seas around 1 foot, except 1 to 2 feet west of the Marquesas Keys. Nearshore waters a light chop. Scattered showers and isolated thunderstorms. TUESDAY NIGHT East winds near 10 knots. Seas around 1 foot, except 1 to 2 feet west of the Marquesas Keys. Nearshore waters a light chop. Scattered showers and isolated thunderstorms. WEDNESDAY AND WEDNESDAY NIGHT East to southeast winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. Scattered showers and isolated thunderstorms. $$
GMZ032-035-090830- Bayside and Gulfside from Craig Key to west end of Seven Mile Bridge- Gulf of America from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms- 421 PM EDT Fri Aug 8 2025 TONIGHT East to southeast winds near 10 knots, becoming southeast and increasing to 10 to 15 knots. Seas 1 foot or less, building to around 1 foot, except building to 1 to 2 feet west of the Marquesas Keys. Nearshore waters a light chop, becoming a light to moderate chop. Numerous showers and scattered thunderstorms. SATURDAY Southeast winds 10 to 15 knots, becoming southeast to south and decreasing to 5 to 10 knots. Seas around 1 foot, subsiding to 1 foot or less. West of the Marquesas Keys, seas 1 to 2 feet, subsiding to around 1 foot. Nearshore waters a light to moderate chop, becoming smooth to a light chop. Numerous showers and scattered thunderstorms. SATURDAY NIGHT 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. SUNDAY Southeast winds near 10 knots, decreasing to 5 to 10 knots. Seas around 1 foot. Nearshore waters a light chop, becoming smooth to a light chop. Numerous showers and scattered thunderstorms. SUNDAY NIGHT East to southeast winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas around 1 foot. Nearshore waters smooth to a light chop, becoming a light to moderate chop. Scattered showers and isolated thunderstorms. MONDAY East to southeast winds 10 to 15 knots, decreasing to near 10 knots. Seas around 1 foot, except 1 to 2 feet west of the Marquesas Keys. Nearshore waters a light to moderate chop, becoming a light chop. Scattered showers and isolated thunderstorms. MONDAY 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. TUESDAY East to southeast winds near 10 knots. Seas around 1 foot, except 1 to 2 feet west of the Marquesas Keys. Nearshore waters a light chop. Scattered showers and isolated thunderstorms. TUESDAY NIGHT East winds near 10 knots. Seas around 1 foot, except 1 to 2 feet west of the Marquesas Keys. Nearshore waters a light chop. Scattered showers and isolated thunderstorms. WEDNESDAY AND WEDNESDAY NIGHT East to southeast winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. Scattered showers and isolated thunderstorms. $$