Hazardous marine condition(s):
Short Term Forecast
GMZ005-152030-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
429 AM EDT Tue Jul 15 2025
.SYNOPSIS...Weak low pressure continues to become better organized
in the vicinity of the Space Coast. However, the overall pressure
pattern remains rather weak, therefore, light to gentle southeast
to south breezes are expected to continue today. In addition,
another round of showers and thunderstorms are expected today with
the main threats being gusty winds and confused seas near
convection. As the weak low pressure shifts off to the west and
into the Gulf, high pressure will build in behind it strengthening
the pressure gradient. This will lead to gentle to moderate
breezes tonight. High pressure remains anchored over the central
Atlantic with its western periphery extending into the Keys
through the weekend with gentle to moderate east to southeast
breezes continuing, occasionally becoming moderate to fresh.
The Approximate Shoreward Edge of the Gulf Stream as of July 15...
18 NM South of Dry Tortugas Light...on Loggerhead Key.
3 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
1 NM South of Sand Key Light...off Key West.
4 NM South of Looe Key...off Big Pine Key.
4 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.
3 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.
$$
GMZ031-152030- Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound- 429 AM EDT Tue Jul 15 2025 TODAY South winds near 5 knots, becoming southeast to south and increasing to 5 to 10 knots. Bay waters smooth, becoming smooth to a light chop. Bay waters rough and winds higher in and around widespread showers and scattered thunderstorms. TONIGHT Southeast to south winds 5 to 10 knots, becoming southeast and increasing to 10 to 15 knots after midnight. Bay waters smooth to a light chop, becoming a light to moderate chop. Numerous showers and scattered thunderstorms. WEDNESDAY Southeast winds near 15 knots, decreasing to near 10 knots in the afternoon. Bay waters a moderate chop, becoming a light chop. Widespread showers and scattered thunderstorms. WEDNESDAY NIGHT East to southeast winds 10 to 15 knots. Bay waters a light to moderate chop. Scattered showers and isolated thunderstorms. THURSDAY East to southeast winds near 15 knots. Bay waters a moderate chop. Numerous showers and isolated thunderstorms. THURSDAY NIGHT East to southeast winds near 15 knots. Bay waters a moderate chop. Isolated showers and thunderstorms. FRIDAY East to southeast winds near 15 knots. Bay waters a moderate chop. Scattered showers and isolated thunderstorms. FRIDAY NIGHT East winds 10 to 15 knots. Bay waters a light to moderate chop. Isolated showers and thunderstorms. SATURDAY East winds 10 to 15 knots. Bay waters a light to moderate chop. Scattered showers and isolated thunderstorms. SATURDAY NIGHT East winds 10 to 15 knots. Bay waters a light to moderate chop. Isolated showers and thunderstorms. $$
GMZ031-152030- Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound- 429 AM EDT Tue Jul 15 2025 TODAY South winds near 5 knots, becoming southeast to south and increasing to 5 to 10 knots. Bay waters smooth, becoming smooth to a light chop. Bay waters rough and winds higher in and around widespread showers and scattered thunderstorms. TONIGHT Southeast to south winds 5 to 10 knots, becoming southeast and increasing to 10 to 15 knots after midnight. Bay waters smooth to a light chop, becoming a light to moderate chop. Numerous showers and scattered thunderstorms. WEDNESDAY Southeast winds near 15 knots, decreasing to near 10 knots in the afternoon. Bay waters a moderate chop, becoming a light chop. Widespread showers and scattered thunderstorms. WEDNESDAY NIGHT East to southeast winds 10 to 15 knots. Bay waters a light to moderate chop. Scattered showers and isolated thunderstorms. THURSDAY East to southeast winds near 15 knots. Bay waters a moderate chop. Numerous showers and isolated thunderstorms. THURSDAY NIGHT East to southeast winds near 15 knots. Bay waters a moderate chop. Isolated showers and thunderstorms. FRIDAY East to southeast winds near 15 knots. Bay waters a moderate chop. Scattered showers and isolated thunderstorms. FRIDAY NIGHT East winds 10 to 15 knots. Bay waters a light to moderate chop. Isolated showers and thunderstorms. SATURDAY East winds 10 to 15 knots. Bay waters a light to moderate chop. Scattered showers and isolated thunderstorms. SATURDAY NIGHT East winds 10 to 15 knots. Bay waters a light to moderate chop. Isolated showers and thunderstorms. $$