Heavy to Excessive Rains in The Four Corners Region and Midwest; Heat Persists in the South-Central U.S.

Repeated rounds of showers and thunderstorms could bring a flash flooding threat across the Four Corners region and from the mid-Mississippi Valley into the lower Great Lakes. Hot temperatures and high humidity will continue to challenge daily records from the Southern Plains to the lower Mississippi Valley. Read More >

Hazardous Weather Conditions

Last Update: 1022 AM EDT Wed Sep 16 2026

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Key West, FL Local Forecast Office

23NM N Smith Shoal Light FL

Marine Zone Forecast


This Afternoon
Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: northeast to east 2 feet at 4 seconds. showers likely with a chance of thunderstorms.
Tonight
Northeast to east winds 10 to 15 knots, increasing to 15 to 20 knots. Seas 2 to 3 feet, building to 2 to 4 feet, occasionally to 5 feet. Wave detail: northeast to east 3 feet at 5 seconds. A chance of showers and thunderstorms.
Thursday
Northeast to east winds near 15 knots, decreasing to near 10 knots. Seas subsiding to 2 to 3 feet. Wave detail: northeast to east 3 feet at 5 seconds. A chance of showers and thunderstorms.
Thursday Night
East winds 10 to 15 knots. Seas 2 to 3 feet. Showers with a chance of thunderstorms.
Friday
East winds 5 to 10 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms.
Friday Night
East winds 5 to 10 knots. Seas subsiding to around 1 foot. Showers likely with a chance of thunderstorms.
Saturday
East to southeast winds 5 to 10 knots. Seas around 1 foot. Showers likely with a chance of thunderstorms.
Saturday Night
Southeast winds near 5 knots. Seas 1 foot or less. Showers likely with a chance of thunderstorms.
Sunday
Southwest winds near 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms.
Sunday Night
South winds 5 to 10 knots. Seas around 1 foot. showers likely with a chance of thunderstorms.



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1022 AM EDT Wed Sep 16 2026
 
 

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