Isaias Expected To Be A Strong Hurricane Approaching The Northern Gulf Coast Friday

Isaias is expected to strengthen and be a strong hurricane when it approaches the northern Gulf Coast on Friday. Damaging hurricane-force winds and life-threatening storm surge impacts are expected Friday into Saturday. Isaias will bring heavy rainfall to the northern Gulf Coast and much of the Southeast U.S. Friday into the weekend. Read More >

Coastal Waters Forecast for Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms (GMZ035) (Text-Only)
NWS Forecast for: Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms (GMZ035)
Issued by: National Weather Service Key West, FL
Last Update: 426 AM EDT Thu Oct 8 2026


Today: South winds near 10 knots, becoming southeast to south. seas around 1 foot. Nearshore waters a light chop. A chance of showers and a slight chance of thunderstorms, mainly this morning.

Tonight: Southeast winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas around 1 foot, building to 1 to 2 feet. West of the marquesas keys, seas 1 to 2 feet, building to 2 to 3 feet. Nearshore waters smooth to a light chop, becoming a light to moderate chop. A slight chance of showers and thunderstorms.

Friday: Southeast winds near 15 knots. Seas 1 to 2 feet, except 2 to 4 feet, occasionally to 5 feet west of the marquesas keys. nearshore waters a moderate chop. A chance of showers with a slight chance of thunderstorms.

Friday Night: Southeast winds near 15 knots. Seas 2 to 3 feet, except 4 to 5 feet, occasionally to 6 feet west of the marquesas keys. Nearshore waters a moderate chop. Showers likely with a chance of thunderstorms.

Saturday: Southeast to south winds near 15 knots. Seas 2 to 3 feet, except 3 to 4 feet, occasionally to 5 feet west of the marquesas keys. Nearshore waters a moderate chop. A chance of showers and thunderstorms.

Saturday Night: East to southeast winds near 15 knots, increasing to 15 to 20 knots. Seas 2 to 3 feet, except 3 to 4 feet, occasionally to 5 feet west of the marquesas keys. Nearshore waters a moderate chop, becoming choppy. A chance of showers and thunderstorms.

Sunday: Southeast winds near 15 knots, becoming east to southeast and decreasing to near 10 knots in the afternoon. Seas 2 to 3 feet, subsiding to 1 to 2 feet. West of the marquesas keys, seas 3 to 4 feet, occasionally to 5 feet, subsiding to 2 to 3 feet. Nearshore waters a moderate chop, becoming a light chop. A slight chance of showers and thunderstorms.

Sunday Night: East winds 5 to 10 knots. Seas 1 to 2 feet. Nearshore waters smooth to a light chop. A slight chance of showers.

Monday: Northeast to east winds 5 to 10 knots, decreasing to near 5 knots in the afternoon. Seas 1 foot or less. Nearshore waters smooth to a light chop, becoming smooth. A slight chance of showers.

Monday Night: Northeast winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth.







Zone Forecast: Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms (GMZ035)

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