Hazardous marine condition(s):
Short Term Forecast
GMZ005-040245-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1045 AM EDT Sun May 3 2026
.SYNOPSIS...Gentle to moderate northwest to north breezes will
gradually slacken this afternoon as a weak surface trough stalls
near and just south of the island chain. Generally winds will then
be light to gentle through Monday. Winds will gradually slacken
and clock east to southeast over the following day or two as high
pressure builds southward across Florida and expands in the
Atlantic. Convective and mesoscale diurnal influences will have a
significant effect on winds. Rain and thunder chances will be well
above normal through tonight then gradually trend downwards
through the next couple of days.
The Approximate Shoreward Edge of the Gulf Stream as of April 28...
16 NM South of Dry Tortugas Light...on Loggerhead Key.
10 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
9 NM South of Sand Key Light...off Key West.
9 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.
6 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.
$$
GMZ052>055-072>075-040245- Straits of Florida from Ocean Reef to Craig Key out 20 NM- Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM- Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out- Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out- 1045 AM EDT Sun May 3 2026 TODAY West to northwest winds 10 to 15 knots, becoming northwest to north 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Southeast 1 foot at 4 seconds and west 1 foot at 5 seconds. Showers likely with a chance of thunderstorms. Winds higher nearer stronger showers and thunderstorms. TONIGHT North to northeast winds 10 to 15 knots, becoming northeast 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Northwest 2 feet at 7 seconds and west to northwest 1 foot at 3 seconds. Showers likely with a chance of thunderstorms. MONDAY North to northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 3 seconds and northwest 2 feet at 7 seconds. A chance of showers with a slight chance of thunderstorms. MONDAY NIGHT Northeast to east winds 10 to 15 knots, becoming east to southeast near 10 knots after midnight. Seas 2 to 3 feet. A chance of showers with a slight chance of thunderstorms. TUESDAY East to southeast winds 5 to 10 knots. Seas 2 to 3 feet. A slight chance of showers and thunderstorms. TUESDAY NIGHT East to southeast winds 5 to 10 knots, increasing to near 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms. WEDNESDAY East to southeast winds near 10 knots. Seas 1 to 2 feet. A slight chance of showers. WEDNESDAY NIGHT East to southeast winds near 10 knots. Seas 1 to 2 feet. THURSDAY East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. THURSDAY NIGHT Variable winds 5 to 10 knots. Seas around 1 foot. $$
GMZ052>055-072>075-040245- Straits of Florida from Ocean Reef to Craig Key out 20 NM- Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM- Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out- Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out- 1045 AM EDT Sun May 3 2026 TODAY West to northwest winds 10 to 15 knots, becoming northwest to north 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Southeast 1 foot at 4 seconds and west 1 foot at 5 seconds. Showers likely with a chance of thunderstorms. Winds higher nearer stronger showers and thunderstorms. TONIGHT North to northeast winds 10 to 15 knots, becoming northeast 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Northwest 2 feet at 7 seconds and west to northwest 1 foot at 3 seconds. Showers likely with a chance of thunderstorms. MONDAY North to northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 3 seconds and northwest 2 feet at 7 seconds. A chance of showers with a slight chance of thunderstorms. MONDAY NIGHT Northeast to east winds 10 to 15 knots, becoming east to southeast near 10 knots after midnight. Seas 2 to 3 feet. A chance of showers with a slight chance of thunderstorms. TUESDAY East to southeast winds 5 to 10 knots. Seas 2 to 3 feet. A slight chance of showers and thunderstorms. TUESDAY NIGHT East to southeast winds 5 to 10 knots, increasing to near 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms. WEDNESDAY East to southeast winds near 10 knots. Seas 1 to 2 feet. A slight chance of showers. WEDNESDAY NIGHT East to southeast winds near 10 knots. Seas 1 to 2 feet. THURSDAY East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. THURSDAY NIGHT Variable winds 5 to 10 knots. Seas around 1 foot. $$