Hazardous marine condition(s):
Short Term Forecast
GMZ005-302045-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
436 AM EDT Tue Jun 30 2026
.SYNOPSIS...A frontal boundary will continue to nudge toward
central Florida where it will linger for the rest of the day.
This will lead to further weakening of a broad high strewn across
the region and allow for light and variable breezes. Conditions
are favorable for a cloud line to develop over, or across the
waters adjacent to, the Florida Keys on Tuesday. This may support
the development of waterspouts.
The Approximate Shoreward Edge of the Gulf Stream as of
June 28, 2026...
33 NM South of Dry Tortugas Light...on Loggerhead Key.
8 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
7 NM South of Sand Key Light...off Key West.
11 NM South of Looe Key...off Big Pine Key.
12 NM Southeast of Sombrero Key Light...off Marathon.
7 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.
$$
GMZ033-034-302045- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 436 AM EDT Tue Jun 30 2026 TODAY East winds to southeast winds 5 to 10 knots early, becoming variable and decreasing to near 5 knots. Seas around 1 foot. Wave Detail: Northwest to north 1 foot at 2 seconds. A slight chance of showers and thunderstorms. TONIGHT Variable winds near 5 knots. Seas around 1 foot. Wave Detail: Northwest to north 1 foot at 3 seconds. A chance of showers with a slight chance of thunderstorms. WEDNESDAY Variable winds near 5 knots. Seas around 1 foot. Wave Detail: Northwest to north 1 foot at 4 seconds. A chance of showers with a slight chance of thunderstorms. WEDNESDAY NIGHT Variable winds near 5 knots, becoming east to southeast. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms. THURSDAY Southeast winds near 5 knots. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms. THURSDAY NIGHT East winds near 5 knots, becoming southeast. Seas 1 foot or less. A slight chance of showers and thunderstorms. FRIDAY East to southeast winds near 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms. FRIDAY NIGHT East winds near 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms. SATURDAY East to southeast winds near 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms. SATURDAY NIGHT East to southeast winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms. $$
GMZ033-034-302045- 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- 436 AM EDT Tue Jun 30 2026 TODAY East winds to southeast winds 5 to 10 knots early, becoming variable and decreasing to near 5 knots. Seas around 1 foot. Wave Detail: Northwest to north 1 foot at 2 seconds. A slight chance of showers and thunderstorms. TONIGHT Variable winds near 5 knots. Seas around 1 foot. Wave Detail: Northwest to north 1 foot at 3 seconds. A chance of showers with a slight chance of thunderstorms. WEDNESDAY Variable winds near 5 knots. Seas around 1 foot. Wave Detail: Northwest to north 1 foot at 4 seconds. A chance of showers with a slight chance of thunderstorms. WEDNESDAY NIGHT Variable winds near 5 knots, becoming east to southeast. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms. THURSDAY Southeast winds near 5 knots. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms. THURSDAY NIGHT East winds near 5 knots, becoming southeast. Seas 1 foot or less. A slight chance of showers and thunderstorms. FRIDAY East to southeast winds near 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms. FRIDAY NIGHT East winds near 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms. SATURDAY East to southeast winds near 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms. SATURDAY NIGHT East to southeast winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms. $$