Coastal Waters Forecast for Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound (GMZ031) (Text-Only)
NWS Forecast for: Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound (GMZ031)
Issued by: National Weather Service Key West, FL
Last Update: 1032 PM EDT Thu Jun 18 2026


Overnight: Southeast winds near 10 knots. Bay waters a light chop. A slight chance of showers and thunderstorms.

Friday: Southeast to south winds 5 to 10 knots. Bay waters smooth to a light chop. A slight chance of showers and thunderstorms in the morning.

Friday Night: Southeast to south winds 5 to 10 knots. Bay waters smooth to a light chop. A slight chance of showers and thunderstorms.

Saturday: Southeast to south winds 5 to 10 knots, becoming south to southwest. Bay waters smooth to a light chop. A slight chance of showers and thunderstorms.

Saturday Night: Northeast winds near 10 knots, becoming southeast 5 to 10 knots. Bay waters a light chop, becoming smooth to a light chop.

Sunday: Southeast to south winds 5 to 10 knots. Bay waters smooth to a light chop.

Sunday Night: Southeast winds 5 to 10 knots. Bay waters smooth to a light chop.

Monday: Southeast winds 5 to 10 knots. Bay waters smooth to a light chop. A slight chance of showers and thunderstorms.

Monday Night: East to southeast winds near 10 knots. Bay waters a light chop. A slight chance of showers.

Tuesday: East to southeast winds 5 to 10 knots. Bay waters smooth to a light chop. A slight chance of showers and thunderstorms.

Tuesday Night: East winds 5 to 10 knots. Bay waters smooth to a light chop. A slight chance of showers.







Zone Forecast: Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound (GMZ031)

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