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.
$$
GMZ031-040245- Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound- 1045 AM EDT Sun May 3 2026 TODAY North winds 10 to 15 knots early, becoming northwest 5 to 10 knots. Bay waters a light to moderate chop, becoming smooth to a light chop. Showers with a chance of thunderstorms. Winds higher and bay waters rough near stronger showers and thunderstorms. TONIGHT North to northeast winds near 10 knots, decreasing to 5 to 10 knots after midnight. Bay waters a light chop, becoming smooth to a light chop. Showers likely with a chance of thunderstorms. MONDAY North winds near 10 knots, becoming northeast. Bay waters a light chop. A chance of showers with a slight chance of thunderstorms. MONDAY NIGHT Northeast to east winds 10 to 15 knots, becoming east near 10 knots. Bay waters a light to moderate chop, becoming a light chop. A chance of showers with a slight chance of thunderstorms. TUESDAY East to southeast winds near 10 knots. Bay waters a light chop. A chance of showers with a slight chance of thunderstorms. TUESDAY NIGHT East to southeast winds 5 to 10 knots. Bay waters smooth to a light chop. A slight chance of showers. WEDNESDAY Southeast winds near 10 knots. Bay waters a light chop. A slight chance of showers. WEDNESDAY NIGHT East to southeast winds near 10 knots. Bay waters a light chop. THURSDAY Southeast to south winds 5 to 10 knots. Bay waters smooth to a light chop. THURSDAY NIGHT Southwest winds near 5 knots. Bay waters smooth. $$
GMZ031-040245- Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound- 1045 AM EDT Sun May 3 2026 TODAY North winds 10 to 15 knots early, becoming northwest 5 to 10 knots. Bay waters a light to moderate chop, becoming smooth to a light chop. Showers with a chance of thunderstorms. Winds higher and bay waters rough near stronger showers and thunderstorms. TONIGHT North to northeast winds near 10 knots, decreasing to 5 to 10 knots after midnight. Bay waters a light chop, becoming smooth to a light chop. Showers likely with a chance of thunderstorms. MONDAY North winds near 10 knots, becoming northeast. Bay waters a light chop. A chance of showers with a slight chance of thunderstorms. MONDAY NIGHT Northeast to east winds 10 to 15 knots, becoming east near 10 knots. Bay waters a light to moderate chop, becoming a light chop. A chance of showers with a slight chance of thunderstorms. TUESDAY East to southeast winds near 10 knots. Bay waters a light chop. A chance of showers with a slight chance of thunderstorms. TUESDAY NIGHT East to southeast winds 5 to 10 knots. Bay waters smooth to a light chop. A slight chance of showers. WEDNESDAY Southeast winds near 10 knots. Bay waters a light chop. A slight chance of showers. WEDNESDAY NIGHT East to southeast winds near 10 knots. Bay waters a light chop. THURSDAY Southeast to south winds 5 to 10 knots. Bay waters smooth to a light chop. THURSDAY NIGHT Southwest winds near 5 knots. Bay waters smooth. $$