GMZ005-291430-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1021 PM EDT Wed Oct 28 2026
.SYNOPSIS...
A broad high pressure system located off the New England coastline
shifted east into the Atlantic. This allowed breezes to slacken
to gentle to moderate easterlies. Though the rest of the week,
breezes are on track to slacken further to light to gentle. Waves
in the western waters will subside to more typical values by
tomorrow. The easternmost Hawk Channel and Florida Straits may
see 2 to 4 foot northerly swell over the weekend.
The Approximate Shoreward Edge of the Gulf Stream as of October 27, 2026...
19 NM south of Dry Tortugas Light, on Loggerhead Key
34 NM south of Cosgrove Shoal Light, off the Marquesas Keys
28 NM south of Sand Key Light, off Key West
38 NM south of Looe Key, off Big Pine Key
31 NM southeast of Sombrero Key Light, off Marathon
17 NM south-southeast of Alligator Reef Light, off Islamorada
10 NM southeast of Molasses Reef Light, off Key Largo
10 NM northwest of Carysfort Reef Light, off Ocean Reef
Gulf Stream Information Courtesy of the National Weather Service in
Key West, using data from RTOFS and NASA SPoRT SST.
$$
GMZ032-035-291430- Bayside and Gulf side from Craig Key to west end of Seven Mile Bridge- Gulf of Mexico from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms- 1021 PM EDT Wed Oct 28 2026 OVERNIGHT Northeast winds near 10 knots. Seas 2 to 3 feet, except 2 to 4 feet, occasionally to 5 feet west of the Marquesas Keys. Nearshore waters a light chop. A slight chance of showers. THURSDAY Northeast winds 5 to 10 knots. Seas 1 to 2 feet, except 2 to 3 feet west of the Marquesas Keys. Nearshore waters smooth to a light chop. A slight chance of showers. THURSDAY NIGHT Northeast winds 5 to 10 knots. Seas 1 to 2 feet. Nearshore waters smooth to a light chop. A slight chance of showers. FRIDAY Northeast to east winds 5 to 10 knots. Seas 1 to 2 feet. Nearshore waters smooth to a light chop. A slight chance of showers and thunderstorms. FRIDAY NIGHT Northeast to east winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A slight chance of showers and thunderstorms. SATURDAY East winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. A slight chance of showers and thunderstorms. SATURDAY NIGHT Northeast to east winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A chance of showers with a slight chance of thunderstorms. SUNDAY East winds 5 to 10 knots. Seas subsiding to 1 foot or less. Nearshore waters smooth to a light chop. A chance of showers and thunderstorms. SUNDAY NIGHT Northeast to east winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. A chance of showers with a slight chance of thunderstorms. MONDAY Northeast to east winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. A chance of showers with a slight chance of thunderstorms. MONDAY NIGHT Northeast winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. A slight chance of showers and thunderstorms. $$
GMZ032-035-291430- Bayside and Gulf side from Craig Key to west end of Seven Mile Bridge- Gulf of Mexico from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms- 1021 PM EDT Wed Oct 28 2026 OVERNIGHT Northeast winds near 10 knots. Seas 2 to 3 feet, except 2 to 4 feet, occasionally to 5 feet west of the Marquesas Keys. Nearshore waters a light chop. A slight chance of showers. THURSDAY Northeast winds 5 to 10 knots. Seas 1 to 2 feet, except 2 to 3 feet west of the Marquesas Keys. Nearshore waters smooth to a light chop. A slight chance of showers. THURSDAY NIGHT Northeast winds 5 to 10 knots. Seas 1 to 2 feet. Nearshore waters smooth to a light chop. A slight chance of showers. FRIDAY Northeast to east winds 5 to 10 knots. Seas 1 to 2 feet. Nearshore waters smooth to a light chop. A slight chance of showers and thunderstorms. FRIDAY NIGHT Northeast to east winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A slight chance of showers and thunderstorms. SATURDAY East winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. A slight chance of showers and thunderstorms. SATURDAY NIGHT Northeast to east winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A chance of showers with a slight chance of thunderstorms. SUNDAY East winds 5 to 10 knots. Seas subsiding to 1 foot or less. Nearshore waters smooth to a light chop. A chance of showers and thunderstorms. SUNDAY NIGHT Northeast to east winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. A chance of showers with a slight chance of thunderstorms. MONDAY Northeast to east winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. A chance of showers with a slight chance of thunderstorms. MONDAY NIGHT Northeast winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. A slight chance of showers and thunderstorms. $$