GMZ005-171430-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1029 PM EDT Thu Jul 16 2026
.SYNOPSIS...
A split ridge pattern will remain across Keys waters for at least
the next several day. This will keep a col somewhere near the
Keys and keep winds light and often variable. Breezes will tend
to peak in the evening and overnight hours, before lulling during
the day, particularly over the outer eastern Straits. Winds may
briefly firm up to a gentle east to southeasterly breeze this
weekend as the Atlantic ridge expands westward, flushing westward
the col.
The Approximate Shoreward Edge of the Gulf Stream as of
July 12...
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.
$$
GMZ033-034-171430- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 1029 PM EDT Thu Jul 16 2026 OVERNIGHT Variable winds 5 to 10 knots. Seas around 1 foot. Wave Detail: Northwest to north 1 foot at 3 seconds. A slight chance of showers and thunderstorms. FRIDAY North winds near 5 knots. Seas around 1 foot. Wave Detail: Northwest to north 1 foot at 4 seconds. A slight chance of showers and thunderstorms. FRIDAY NIGHT North winds near 5 knots, becoming variable. Seas around 1 foot. Wave Detail: Northwest to north 1 foot at 5 seconds. A chance of showers with a slight chance of thunderstorms. SATURDAY Variable winds near 5 knots, becoming southeast to south. Seas around 1 foot. A slight chance of showers and thunderstorms. SATURDAY NIGHT South to southwest winds near 5 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. SUNDAY Southwest winds 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers and thunderstorms. SUNDAY NIGHT Southwest winds 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers and thunderstorms. MONDAY Southwest winds near 10 knots. Seas 1 to 2 feet. A slight chance of showers and thunderstorms. MONDAY NIGHT South to southwest winds 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers and thunderstorms. TUESDAY South winds 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers and thunderstorms. TUESDAY NIGHT Southeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers. $$
GMZ033-034-171430- 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- 1029 PM EDT Thu Jul 16 2026 OVERNIGHT Variable winds 5 to 10 knots. Seas around 1 foot. Wave Detail: Northwest to north 1 foot at 3 seconds. A slight chance of showers and thunderstorms. FRIDAY North winds near 5 knots. Seas around 1 foot. Wave Detail: Northwest to north 1 foot at 4 seconds. A slight chance of showers and thunderstorms. FRIDAY NIGHT North winds near 5 knots, becoming variable. Seas around 1 foot. Wave Detail: Northwest to north 1 foot at 5 seconds. A chance of showers with a slight chance of thunderstorms. SATURDAY Variable winds near 5 knots, becoming southeast to south. Seas around 1 foot. A slight chance of showers and thunderstorms. SATURDAY NIGHT South to southwest winds near 5 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. SUNDAY Southwest winds 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers and thunderstorms. SUNDAY NIGHT Southwest winds 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers and thunderstorms. MONDAY Southwest winds near 10 knots. Seas 1 to 2 feet. A slight chance of showers and thunderstorms. MONDAY NIGHT South to southwest winds 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers and thunderstorms. TUESDAY South winds 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers and thunderstorms. TUESDAY NIGHT Southeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers. $$