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 >

Hazardous Weather Conditions

Short Term Forecast

Last Update: 426 AM EDT Thu Oct 8 2026

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Key West, FL Local Forecast Office

23NM N Smith Shoal Light FL

Marine Zone Forecast

Today

South winds near 10 knots, becoming southeast to south. seas 1 to 2 feet. Wave detail: southwest to west 1 foot at 4 seconds. A chance of showers with a slight chance of thunderstorms, then a slight chance of showers and thunderstorms in the afternoon.

Tonight

Southeast winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 1 to 2 feet, building to 2 to 3 feet. Wave detail: southwest 2 feet at 5 seconds. A chance of showers with a slight chance of thunderstorms.

Friday

Southeast winds near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet, building to 3 to 6 feet, occasionally to 8 feet due to a west swell. Wave detail: southwest to west 4 feet at 11 seconds and southeast 3 feet at 4 seconds. A chance of showers with a slight chance of thunderstorms.

Friday Night

Southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet due to a west swell. Showers likely with a chance of thunderstorms.

Saturday

Southeast to south winds near 15 knots. Seas 3 to 5 feet, occasionally to 6 feet, subsiding to 3 to 4 feet, occasionally to 5 feet. A chance of showers and thunderstorms.

Saturday Night

Southeast winds 10 to 15 knots, increasing to near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Showers likely with a chance of thunderstorms.

Sunday

Southeast winds near 15 knots, becoming east to southeast and decreasing to near 10 knots. Seas 2 to 4 feet, occasionally to 5 feet, subsiding to 2 to 3 feet. A slight chance of showers and thunderstorms.

Sunday Night

East winds near 10 knots. Seas around 2 feet.

Monday

Northeast to east winds 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers.

Monday Night

North to northeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers.