Hazardous marine condition(s):
Short Term Forecast
GMZ005-312100-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
450 AM EDT Sun May 31 2026
.SYNOPSIS...Weak high pressure across the area will support light
to gentle southwesterly breezes over the next few days, becoming
light and variable at times. Near normal rain and thunder chances
also expected. A weak frontal boundary may stall near the Keys
coastal waters by mid week, supporting an uptick in wind speeds as
well as rain chances.
The Approximate Shoreward Edge of the Gulf Stream as of May 30...
35 NM South of Dry Tortugas Light...on Loggerhead Key.
11 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
10 NM South of Sand Key Light...off Key West.
7 NM South of Looe Key...off Big Pine Key.
7 NM Southeast of Sombrero Key Light...off Marathon.
6 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 based on products from NASA SPoRT and RTOFS.
$$
GMZ033-034-312100- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 450 AM EDT Sun May 31 2026 TODAY Southwest winds 5 to 10 knots early, decreasing to near 5 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. A slight chance of showers and thunderstorms. TONIGHT Southwest to west winds near 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms. MONDAY Southwest to west winds near 5 knots, becoming west. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. A slight chance of showers and thunderstorms. MONDAY NIGHT Northwest to north winds near 5 knots, becoming variable at times. Seas 1 foot or less. TUESDAY Northwest to north winds near 5 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. TUESDAY NIGHT Northwest to north winds 5 to 10 knots, becoming north. Seas around 1 foot. A slight chance of showers and thunderstorms. WEDNESDAY North to northeast winds near 5 knots. Seas around 1 foot. A chance of showers and thunderstorms. WEDNESDAY NIGHT Northeast to east winds 5 to 10 knots, increasing to near 10 knots. Seas around 1 foot. Showers likely with a chance of thunderstorms. THURSDAY East winds near 10 knots, increasing to 10 to 15 knots. Seas 1 to 2 feet, building to around 2 feet. A chance of thunderstorms. Showers likely. THURSDAY NIGHT East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms. $$
GMZ033-034-312100- 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- 450 AM EDT Sun May 31 2026 TODAY Southwest winds 5 to 10 knots early, decreasing to near 5 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. A slight chance of showers and thunderstorms. TONIGHT Southwest to west winds near 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms. MONDAY Southwest to west winds near 5 knots, becoming west. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. A slight chance of showers and thunderstorms. MONDAY NIGHT Northwest to north winds near 5 knots, becoming variable at times. Seas 1 foot or less. TUESDAY Northwest to north winds near 5 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. TUESDAY NIGHT Northwest to north winds 5 to 10 knots, becoming north. Seas around 1 foot. A slight chance of showers and thunderstorms. WEDNESDAY North to northeast winds near 5 knots. Seas around 1 foot. A chance of showers and thunderstorms. WEDNESDAY NIGHT Northeast to east winds 5 to 10 knots, increasing to near 10 knots. Seas around 1 foot. Showers likely with a chance of thunderstorms. THURSDAY East winds near 10 knots, increasing to 10 to 15 knots. Seas 1 to 2 feet, building to around 2 feet. A chance of thunderstorms. Showers likely. THURSDAY NIGHT East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms. $$