GMZ005-280230-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1026 AM EDT Thu Aug 27 2026
.SYNOPSIS...The western periphery of an Atlantic high is expected
to maintain control of the Keys for the next several days. This
will continue to promote peaking and lulling east to southeast
breezes. Breezes will peak in the evening through early morning
hours and lull in the afternoons. In addition, the southeasterly
flow will also keep deep moisture in place across the region with
daily chances of showers and thunderstorms. Locally hazardous
winds and seas are expected in the vicinity of thunderstorm
activity.
The Approximate Shoreward Edge of the Gulf Stream as of August 26,
2026...
32 NM south of Dry Tortugas Light, on Loggerhead Key
9 NM south-southeast of Cosgrove Shoal Light, off the Marquesas Keys
7 NM south-southeast of Sand Key Light, off Key West
6 NM south-southeast of Looe Key, off Big Pine Key
7 NM south-southeast of Sombrero Key Light, off Marathon
4 NM southeast of Alligator Reef Light, off Islamorada
1 NM west-northwest of Molasses Reef Light, off Key Largo
1 NM east-southeast of Carysfort Reef Light, off Ocean Reef
Gulf Stream Information Courtesy of the Naval Oceanographic
Office.
$$
GMZ052>055-072>075-280230- Straits of Florida from Ocean Reef to Craig Key out 20 NM- Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM- Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out- Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out- 1026 AM EDT Thu Aug 27 2026 THIS AFTERNOON Southeast winds 10 to 15 knots, becoming east and decreasing to 5 to 10 knots. Seas 2 to 3 feet, subsiding to 1 to 2 feet. Wave Detail: East to southeast 2 feet at 5 seconds. A chance of thunderstorms with a slight chance of showers. TONIGHT East winds near 10 knots, becoming east to southeast and increasing to 10 to 15 knots. Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds. A chance of thunderstorms with a slight chance of showers. FRIDAY East to southeast winds near 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds. A chance of showers and thunderstorms. FRIDAY NIGHT Northeast to east winds 10 to 15 knots, becoming east. Seas 2 to 3 feet. A chance of showers and thunderstorms. SATURDAY East winds near 10 knots. Seas around 2 feet. A chance of showers and thunderstorms. SATURDAY NIGHT Northeast to east winds 10 to 15 knots, becoming east to southeast. Seas 2 to 3 feet. A chance of showers and thunderstorms. SUNDAY East to southeast winds near 10 knots, becoming east. Seas 2 to 3 feet. A chance of showers and thunderstorms. SUNDAY NIGHT East winds near 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. MONDAY East winds 5 to 10 knots. Seas around 1 foot. Showers and thunderstorms likely. MONDAY NIGHT East winds near 10 knots. Seas around 1 foot. Showers and thunderstorms likely. $$
GMZ052>055-072>075-280230- Straits of Florida from Ocean Reef to Craig Key out 20 NM- Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM- Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out- Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out- 1026 AM EDT Thu Aug 27 2026 THIS AFTERNOON Southeast winds 10 to 15 knots, becoming east and decreasing to 5 to 10 knots. Seas 2 to 3 feet, subsiding to 1 to 2 feet. Wave Detail: East to southeast 2 feet at 5 seconds. A chance of thunderstorms with a slight chance of showers. TONIGHT East winds near 10 knots, becoming east to southeast and increasing to 10 to 15 knots. Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds. A chance of thunderstorms with a slight chance of showers. FRIDAY East to southeast winds near 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds. A chance of showers and thunderstorms. FRIDAY NIGHT Northeast to east winds 10 to 15 knots, becoming east. Seas 2 to 3 feet. A chance of showers and thunderstorms. SATURDAY East winds near 10 knots. Seas around 2 feet. A chance of showers and thunderstorms. SATURDAY NIGHT Northeast to east winds 10 to 15 knots, becoming east to southeast. Seas 2 to 3 feet. A chance of showers and thunderstorms. SUNDAY East to southeast winds near 10 knots, becoming east. Seas 2 to 3 feet. A chance of showers and thunderstorms. SUNDAY NIGHT East winds near 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. MONDAY East winds 5 to 10 knots. Seas around 1 foot. Showers and thunderstorms likely. MONDAY NIGHT East winds near 10 knots. Seas around 1 foot. Showers and thunderstorms likely. $$