Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >

Last Update: 1020 AM EDT Wed Aug 26 2026

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Key West, FL Local Forecast Office

16NM S Dry Tortugas Light FL

Marine Zone Forecast


This Afternoon
East to southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: east to southeast 3 feet at 5 seconds. A slight chance of showers and thunderstorms.
Tonight
East to southeast winds 10 to 15 knots, increasing briefly to near 15 knots. Seas 2 to 3 feet. Wave detail: east 3 feet at 5 seconds. A chance of showers and thunderstorms.
Thursday
Southeast winds 10 to 15 knots, becoming east to southeast and decreasing to 5 to 10 knots. Seas around 2 feet. wave detail: east to southeast 2 feet at 5 seconds. A chance of showers and thunderstorms.
Thursday Night
East winds near 10 knots, becoming east to southeast. Seas around 2 feet. A chance of showers and thunderstorms.
Friday
East to southeast winds near 10 knots, becoming east and decreasing to 5 to 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms.
Friday Night
East winds near 10 knots, increasing to 10 to 15 knots. Seas 1 to 2 feet, building to around 2 feet. A chance of showers and thunderstorms.
Saturday
East winds near 10 knots. Seas around 2 feet. A chance of showers and thunderstorms.
Saturday Night
East winds 10 to 15 knots. Seas around 2 feet. A chance of showers and thunderstorms.
Sunday
East to southeast winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms.
Sunday Night
East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms.



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1020 AM EDT Wed Aug 26 2026
 
 

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