Hazardous marine condition(s):
Short Term Forecast
GMZ005-060230-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1028 AM EDT Wed Aug 5 2026
.SYNOPSIS...Gentle easterlies will become moderate by this
evening, continuing through late week, as nearby Atlantic ridging
strengthens and lifts northward towards North Florida. In
addition, rain chances will remain elevated through the end of the
week, as pockets of deep moisture and slightly cyclonic upper-
level curvature push through the region at times. Higher winds and
seas should be expected in the vicinity of thunderstorm activity.
The Approximate Shoreward Edge of the Gulf Stream as of
July 31, 2026...
31 NM South of Dry Tortugas Light...on Loggerhead Key.
24 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
25 NM South of Sand Key Light...off Key West.
2 NM South of Looe Key...off Big Pine Key.
1 NM South of Sombrero Key Light...off Marathon.
5 NM Southeast of Alligator Reef Light...off Islamorada.
2 NM Southeast of Molasses Reef Light...off Key Largo.
1 NM Southeast 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.
$$
GMZ042>044-060230- Hawk Channel from Ocean Reef to Craig Key out to the reef- Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef- Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef- 1028 AM EDT Wed Aug 5 2026 THIS AFTERNOON East to southeast winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. A chance of showers and thunderstorms. TONIGHT East winds near 10 knots, increasing to 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light chop, becoming a light to moderate chop. A chance of showers and thunderstorms. THURSDAY East winds 10 to 15 knots. Seas around 2 feet. Nearshore waters a light to moderate chop. A chance of showers and thunderstorms. THURSDAY NIGHT Northeast to east winds near 15 knots. Seas 2 to 3 feet. Nearshore waters a moderate chop. Showers likely with a chance of thunderstorms. FRIDAY East to southeast winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A chance of showers and thunderstorms. FRIDAY NIGHT East to southeast winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A chance of showers and thunderstorms. SATURDAY Southeast winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A chance of showers and thunderstorms. SATURDAY NIGHT East winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A slight chance of showers and thunderstorms. SUNDAY East to southeast winds 10 to 15 knots. Seas around 2 feet. Nearshore waters a light to moderate chop. A slight chance of showers and thunderstorms. SUNDAY NIGHT East winds 10 to 15 knots. Seas around 2 feet. Nearshore waters a light to moderate chop. A slight chance of showers and thunderstorms. $$
GMZ042>044-060230- 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- 1028 AM EDT Wed Aug 5 2026 THIS AFTERNOON East to southeast winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. A chance of showers and thunderstorms. TONIGHT East winds near 10 knots, increasing to 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light chop, becoming a light to moderate chop. A chance of showers and thunderstorms. THURSDAY East winds 10 to 15 knots. Seas around 2 feet. Nearshore waters a light to moderate chop. A chance of showers and thunderstorms. THURSDAY NIGHT Northeast to east winds near 15 knots. Seas 2 to 3 feet. Nearshore waters a moderate chop. Showers likely with a chance of thunderstorms. FRIDAY East to southeast winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A chance of showers and thunderstorms. FRIDAY NIGHT East to southeast winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A chance of showers and thunderstorms. SATURDAY Southeast winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A chance of showers and thunderstorms. SATURDAY NIGHT 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. SUNDAY East to southeast winds 10 to 15 knots. Seas around 2 feet. Nearshore waters a light to moderate chop. A slight chance of showers and thunderstorms. SUNDAY NIGHT East winds 10 to 15 knots. Seas around 2 feet. Nearshore waters a light to moderate chop. A slight chance of showers and thunderstorms. $$