Hazardous marine condition(s):
Short Term Forecast
GMZ005-222030-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
420 AM EDT Mon Jun 22 2026
.SYNOPSIS...A broad, weak high pressure stretches from the Gulf
Basin, across the Florida Peninsula and into the central North
Atlantic. This feature will flux in strength over the next several
days. As a result, expect both wind speeds and direction to be
primarily mesoscale driven and at times chaotic. By Wednesday, the
high will begin to gradually build and allow for a slow
freshening of east to southeast breezes.
The Approximate Shoreward Edge of the Gulf Stream as of June 21,
2026...
32 NM South of Dry Tortugas Light...on Loggerhead Key.
12 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
11 NM South of Sand Key Light...off Key West.
10 NM South of Looe Key...off Big Pine Key.
12 NM Southeast of Sombrero Key Light...off Marathon.
10 NM Southeast of Alligator Reef Light...off Islamorada.
6 NM Southeast of Molasses Reef Light...off Key Largo.
3 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.
$$
GMZ033-034-222030- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 420 AM EDT Mon Jun 22 2026 TODAY East to southeast winds 5 to 10 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 3 seconds. A slight chance of showers and thunderstorms. TONIGHT East winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas around 1 foot, building to 1 to 2 feet. Wave Detail: East 1 foot at 3 seconds. A slight chance of showers and thunderstorms. TUESDAY Southeast winds 10 to 15 knots early, becoming east to southeast to 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Southeast 2 feet at 3 seconds. A slight chance of showers and thunderstorms. TUESDAY NIGHT Northeast to east winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. WEDNESDAY Northeast to east winds near 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms. WEDNESDAY NIGHT Northeast winds 5 to 10 knots, becoming east to southeast near 10 knots. Seas building to around 1 foot A slight chance of showers and thunderstorms. THURSDAY Southeast winds near 10 knots. Seas 1 to 2 feet. THURSDAY NIGHT East to southeast winds near 10 knots. Seas 1 to 2 feet, building to around 2 feet. A slight chance of showers and thunderstorms. FRIDAY East to southeast winds 5 to 10 knots. Seas around 2 feet, subsiding to 1 to 2 feet. FRIDAY NIGHT East to southeast winds near 10 knots. Seas 1 to 2 feet. $$
GMZ033-034-222030- 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- 420 AM EDT Mon Jun 22 2026 TODAY East to southeast winds 5 to 10 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 3 seconds. A slight chance of showers and thunderstorms. TONIGHT East winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas around 1 foot, building to 1 to 2 feet. Wave Detail: East 1 foot at 3 seconds. A slight chance of showers and thunderstorms. TUESDAY Southeast winds 10 to 15 knots early, becoming east to southeast to 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Southeast 2 feet at 3 seconds. A slight chance of showers and thunderstorms. TUESDAY NIGHT Northeast to east winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. WEDNESDAY Northeast to east winds near 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms. WEDNESDAY NIGHT Northeast winds 5 to 10 knots, becoming east to southeast near 10 knots. Seas building to around 1 foot A slight chance of showers and thunderstorms. THURSDAY Southeast winds near 10 knots. Seas 1 to 2 feet. THURSDAY NIGHT East to southeast winds near 10 knots. Seas 1 to 2 feet, building to around 2 feet. A slight chance of showers and thunderstorms. FRIDAY East to southeast winds 5 to 10 knots. Seas around 2 feet, subsiding to 1 to 2 feet. FRIDAY NIGHT East to southeast winds near 10 knots. Seas 1 to 2 feet. $$