GMZ005-132030-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
428 AM EDT Mon Jul 13 2026
.SYNOPSIS...
A ridge axis will stretch west across Central and South Florida
this week, supporting gentle to moderate east to southeast
breezes. The wind speeds will tend to peak in the evening and
overnight hours before decreasing slightly in the morning and
afternoon hours. In addition, a large area of Saharan dust will
remain in place across the area for several days and this will
result in a rain-free forecast through at least the middle of next
week.
The Approximate Shoreward Edge of the Gulf Stream as of
July 12, 2026...
63 NM South of Dry Tortugas Light...on Loggerhead Key.
38 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
21 NM South of Sand Key Light...off Key West.
13 NM South of Looe Key...off Big Pine Key.
12 NM South 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.
2 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.
$$
GMZ033-034-132030- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 428 AM EDT Mon Jul 13 2026 TODAY East to southeast winds near 15 knots, decreasing to 5 to 10 knots. Seas 1 to 3 feet, subsiding to 1 to 2 feet. Wave Detail: East to southeast 2 feet at 4 seconds. TONIGHT East winds 5 to 10 knots, becoming east to southeast and increasing to 10 to 15 knots after midnight. Seas 1 to 2 feet, building to 1 to 3 feet. Wave Detail: East to southeast 2 feet at 3 seconds. TUESDAY East to southeast winds 10 to 15 knots, decreasing to near 10 knots. Seas 1 to 3 feet, subsiding to 1 to 2 feet. Wave Detail: East to southeast 2 feet at 4 seconds. TUESDAY NIGHT East winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 1 to 2 feet, building to 1 to 3 feet. WEDNESDAY East winds 10 to 15 knots, becoming east to southeast and decreasing to 5 to 10 knots in the afternoon. Seas 1 to 3 feet, subsiding to 1 to 2 feet. A slight chance of showers and thunderstorms. WEDNESDAY NIGHT East winds 5 to 10 knots, becoming northeast to east and increasing to 10 to 15 knots after midnight. Seas 1 to 2 feet, building to 1 to 3 feet. A slight chance of showers and thunderstorms. THURSDAY Northeast to east winds near 10 knots, decreasing to 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers and thunderstorms. THURSDAY NIGHT Northeast winds 5 to 10 knots. Seas 1 to 2 feet. FRIDAY Northeast winds 5 to 10 knots. Seas around 1 foot. FRIDAY NIGHT Northeast winds near 5 knots. Seas around 1 foot. A slight chance of showers. $$
GMZ033-034-132030- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 428 AM EDT Mon Jul 13 2026 TODAY East to southeast winds near 15 knots, decreasing to 5 to 10 knots. Seas 1 to 3 feet, subsiding to 1 to 2 feet. Wave Detail: East to southeast 2 feet at 4 seconds. TONIGHT East winds 5 to 10 knots, becoming east to southeast and increasing to 10 to 15 knots after midnight. Seas 1 to 2 feet, building to 1 to 3 feet. Wave Detail: East to southeast 2 feet at 3 seconds. TUESDAY East to southeast winds 10 to 15 knots, decreasing to near 10 knots. Seas 1 to 3 feet, subsiding to 1 to 2 feet. Wave Detail: East to southeast 2 feet at 4 seconds. TUESDAY NIGHT East winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 1 to 2 feet, building to 1 to 3 feet. WEDNESDAY East winds 10 to 15 knots, becoming east to southeast and decreasing to 5 to 10 knots in the afternoon. Seas 1 to 3 feet, subsiding to 1 to 2 feet. A slight chance of showers and thunderstorms. WEDNESDAY NIGHT East winds 5 to 10 knots, becoming northeast to east and increasing to 10 to 15 knots after midnight. Seas 1 to 2 feet, building to 1 to 3 feet. A slight chance of showers and thunderstorms. THURSDAY Northeast to east winds near 10 knots, decreasing to 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers and thunderstorms. THURSDAY NIGHT Northeast winds 5 to 10 knots. Seas 1 to 2 feet. FRIDAY Northeast winds 5 to 10 knots. Seas around 1 foot. FRIDAY NIGHT Northeast winds near 5 knots. Seas around 1 foot. A slight chance of showers. $$