GMZ005-300830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
424 PM EDT Mon Jun 29 2026
.SYNOPSIS...A frontal boundary will press south tonight across
the Florida Peninsula and stall across central Florida. This will
act to weaken a broad high strewn across the region and allow for
slackening breezes Tuesday. 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.
Breezes may briefly go light and variable Wednesday and Wednesday
evening, before resuming a cycle of overnight peaks and daytime
lulls.
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.
$$
GMZ033-034-300830- 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- 424 PM EDT Mon Jun 29 2026 TONIGHT Northeast to east winds 5 to 10 knots. Seas 1 to 2 feet, subsiding to around 1 foot. Wave Detail: East 1 foot at 3 seconds. A slight chance of showers and thunderstorms. TUESDAY North to northeast winds near 5 knots, becoming northwest to north 10 to 15 knots in the afternoon. Seas 1 foot or less, building to 1 to 2 feet. Wave Detail: Northwest to north 1 foot at 3 seconds. A slight chance of showers and thunderstorms. TUESDAY NIGHT Northwest to north winds 10 to 15 knots, becoming northeast to east 5 to 10 knots after midnight. Seas 1 to 2 feet. Wave Detail: Northwest to north 1 foot at 3 seconds. A chance of showers with a slight chance of thunderstorms. WEDNESDAY Southeast to south winds near 5 knots, becoming variable in the afternoon. Seas around 1 foot, subsiding to 1 foot or less. A chance of showers with a slight chance of thunderstorms. WEDNESDAY NIGHT Northwest to north winds near 5 knots, becoming southeast to south 5 to 10 knots. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms. THURSDAY Southeast to south winds 5 to 10 knots, decreasing to near 5 knots. Seas around 1 foot. A chance of showers with a slight chance of thunderstorms. THURSDAY NIGHT Northeast to east winds near 5 knots, becoming east to southeast 5 to 10 knots. Seas around 1 foot. 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 around 1 foot. A slight chance of showers and thunderstorms. SATURDAY NIGHT East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. $$
GMZ033-034-300830- 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- 424 PM EDT Mon Jun 29 2026 TONIGHT Northeast to east winds 5 to 10 knots. Seas 1 to 2 feet, subsiding to around 1 foot. Wave Detail: East 1 foot at 3 seconds. A slight chance of showers and thunderstorms. TUESDAY North to northeast winds near 5 knots, becoming northwest to north 10 to 15 knots in the afternoon. Seas 1 foot or less, building to 1 to 2 feet. Wave Detail: Northwest to north 1 foot at 3 seconds. A slight chance of showers and thunderstorms. TUESDAY NIGHT Northwest to north winds 10 to 15 knots, becoming northeast to east 5 to 10 knots after midnight. Seas 1 to 2 feet. Wave Detail: Northwest to north 1 foot at 3 seconds. A chance of showers with a slight chance of thunderstorms. WEDNESDAY Southeast to south winds near 5 knots, becoming variable in the afternoon. Seas around 1 foot, subsiding to 1 foot or less. A chance of showers with a slight chance of thunderstorms. WEDNESDAY NIGHT Northwest to north winds near 5 knots, becoming southeast to south 5 to 10 knots. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms. THURSDAY Southeast to south winds 5 to 10 knots, decreasing to near 5 knots. Seas around 1 foot. A chance of showers with a slight chance of thunderstorms. THURSDAY NIGHT Northeast to east winds near 5 knots, becoming east to southeast 5 to 10 knots. Seas around 1 foot. 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 around 1 foot. A slight chance of showers and thunderstorms. SATURDAY NIGHT East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. $$