GMZ005-010815-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
412 PM EDT Fri Jul 31 2026
.SYNOPSIS...The western periphery of an Atlantic surface ridge
will continue to slide westward across the Florida Keys coastal
waters. This will result in a weak nebulous flow with light to
gentle breezes as a col region continues into the first part of
the weekend. As high pressure strengthens in the North Atlantic,
southeast breezes will freshen by the second half of the weekend
and into early next week. In addition, rain chances will also be
increasing by next week as deeper moisture spreads into the region
ahead of a frontal boundary approaching northern Florida.
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.
$$
GMZ033-034-010815- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 412 PM EDT Fri Jul 31 2026 TONIGHT Variable winds near 5 knots. Seas around 1 foot. Wave Detail: Northwest 1 foot at 5 seconds. A slight chance of showers and thunderstorms. SATURDAY Variable winds, becoming west to northwest near 5 knots. Seas around 1 foot. Wave Detail: Northwest 1 foot at 4 seconds. A slight chance of showers and thunderstorms. SATURDAY NIGHT Northwest to north winds near 5 knots, becoming southeast. Seas around 1 foot. Wave Detail: Northwest 1 foot at 5 seconds. A slight chance of showers and thunderstorms. SUNDAY Southeast to south winds 5 to 10 knots. Seas around 1 foot. Wave Detail: Northwest 1 foot at 5 seconds. A slight chance of showers and thunderstorms. SUNDAY NIGHT Southeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. MONDAY South to southwest winds 5 to 10 knots. Seas around 1 foot. A chance of showers with a slight chance of thunderstorms. MONDAY NIGHT Northeast winds near 5 knots, becoming southeast. Seas around 1 foot. A slight chance of showers and thunderstorms. TUESDAY East to southeast winds near 5 knots. Seas around 1 foot. A chance of showers and thunderstorms. TUESDAY NIGHT East winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. WEDNESDAY East winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. WEDNESDAY NIGHT East winds near 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. $$
GMZ033-034-010815- 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- 412 PM EDT Fri Jul 31 2026 TONIGHT Variable winds near 5 knots. Seas around 1 foot. Wave Detail: Northwest 1 foot at 5 seconds. A slight chance of showers and thunderstorms. SATURDAY Variable winds, becoming west to northwest near 5 knots. Seas around 1 foot. Wave Detail: Northwest 1 foot at 4 seconds. A slight chance of showers and thunderstorms. SATURDAY NIGHT Northwest to north winds near 5 knots, becoming southeast. Seas around 1 foot. Wave Detail: Northwest 1 foot at 5 seconds. A slight chance of showers and thunderstorms. SUNDAY Southeast to south winds 5 to 10 knots. Seas around 1 foot. Wave Detail: Northwest 1 foot at 5 seconds. A slight chance of showers and thunderstorms. SUNDAY NIGHT Southeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. MONDAY South to southwest winds 5 to 10 knots. Seas around 1 foot. A chance of showers with a slight chance of thunderstorms. MONDAY NIGHT Northeast winds near 5 knots, becoming southeast. Seas around 1 foot. A slight chance of showers and thunderstorms. TUESDAY East to southeast winds near 5 knots. Seas around 1 foot. A chance of showers and thunderstorms. TUESDAY NIGHT East winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. WEDNESDAY East winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms. WEDNESDAY NIGHT East winds near 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. $$