Hazardous marine condition(s):
Short Term Forecast
GMZ005-150830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
430 PM EDT Fri Aug 14 2026
.SYNOPSIS...High pressure in the central North Atlantic will
strengthen and build westward for the next several days. With the
associated ridge axis located north of the Florida Keys, this will
support gentle to moderate east to southeast breezes for the
marine zones through Sunday night. A weak frontal boundary will
stall over the Florida Peninsula for early next week. This will
disrupt the ridge's influence on the Keys coastal waters. Breezes
will respond, becoming light to gentle.
The Approximate Shoreward Edge of the Gulf Stream as of
August 13, 2026...
38 NM South of Dry Tortugas Light...on Loggerhead Key.
20 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
17 NM South of Sand Key Light...off Key West.
21 NM South of Looe Key...off Big Pine Key.
18 NM Southeast of Sombrero Key Light...off Marathon.
7 NM Southeast of Alligator Reef Light...off Islamorada.
7 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.
$$
GMZ033-034-150830- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 430 PM EDT Fri Aug 14 2026 TONIGHT East winds 10 to 15 knots, becoming east to southeast. Seas 1 to 2 feet, building to 2 to 3 feet. Wave Detail: East 2 feet at 4 seconds. Showers likely with a chance of thunderstorms. Winds stronger and seas higher in and around showers and thunderstorms. SATURDAY East to southeast winds 10 to 15 knots, decreasing to near 10 knots. Seas 2 to 3 feet, subsiding to 1 to 2 feet. Wave Detail: East to southeast 2 feet at 4 seconds. A chance of showers and thunderstorms. SATURDAY NIGHT East to southeast winds 10 to 15 knots, increasing to near 15 knots. Seas around 2 feet, building to 2 to 3 feet. Wave Detail: East to southeast 2 feet at 4 seconds. A slight chance of showers and thunderstorms. SUNDAY East winds 10 to 15 knots, decreasing to near 10 knots. Seas 2 to 3 feet, subsiding to 1 to 3 feet. SUNDAY NIGHT East winds near 10 knots. Seas 1 to 2 feet. MONDAY Northeast to east winds 5 to 10 knots, becoming variable near 5 knots. Seas 1 to 2 feet. MONDAY NIGHT North to northeast winds near 5 knots. Seas 1 foot or less. TUESDAY North winds near 5 knots. Seas around 1 foot. TUESDAY NIGHT Northwest to north winds near 5 knots. Seas around 1 foot. WEDNESDAY Northwest to north winds near 5 knots. Seas around 1 foot. A slight chance of showers. WEDNESDAY NIGHT North winds near 5 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. $$
GMZ033-034-150830- 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- 430 PM EDT Fri Aug 14 2026 TONIGHT East winds 10 to 15 knots, becoming east to southeast. Seas 1 to 2 feet, building to 2 to 3 feet. Wave Detail: East 2 feet at 4 seconds. Showers likely with a chance of thunderstorms. Winds stronger and seas higher in and around showers and thunderstorms. SATURDAY East to southeast winds 10 to 15 knots, decreasing to near 10 knots. Seas 2 to 3 feet, subsiding to 1 to 2 feet. Wave Detail: East to southeast 2 feet at 4 seconds. A chance of showers and thunderstorms. SATURDAY NIGHT East to southeast winds 10 to 15 knots, increasing to near 15 knots. Seas around 2 feet, building to 2 to 3 feet. Wave Detail: East to southeast 2 feet at 4 seconds. A slight chance of showers and thunderstorms. SUNDAY East winds 10 to 15 knots, decreasing to near 10 knots. Seas 2 to 3 feet, subsiding to 1 to 3 feet. SUNDAY NIGHT East winds near 10 knots. Seas 1 to 2 feet. MONDAY Northeast to east winds 5 to 10 knots, becoming variable near 5 knots. Seas 1 to 2 feet. MONDAY NIGHT North to northeast winds near 5 knots. Seas 1 foot or less. TUESDAY North winds near 5 knots. Seas around 1 foot. TUESDAY NIGHT Northwest to north winds near 5 knots. Seas around 1 foot. WEDNESDAY Northwest to north winds near 5 knots. Seas around 1 foot. A slight chance of showers. WEDNESDAY NIGHT North winds near 5 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. $$