Severe Thunderstorms in Portions of the Mississippi Valley and Great Lakes

A few severe thunderstorms with large hail, are expected across parts of the middle and upper Mississippi River Valley tonight through early morning. Snow and a wintry mix overnight in the Upper Midwest into the Great Lakes can cause hazardous travel conditions. Fire weather concerns continue for a large portion of the central and southern High Plains and Four Corners region this evening. Read More >

Last Update: 420 PM EDT Mon Mar 30 2026

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Key West, FL Local Forecast Office

23NM N Smith Shoal Light FL

Marine Zone Forecast


Tonight
East winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave detail: east 4 feet at 5 seconds. A slight chance of showers and thunderstorms.
Tuesday
East winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave detail: east 4 feet at 5 seconds. A slight chance of showers.
Tuesday Night
East winds near 20 knots. Seas 4 to 6 feet, occasionally to 7 feet. A slight chance of showers. Wave detail: east 5 feet at 5 seconds. A slight chance of showers.
Wednesday
East winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A chance of showers.
Wednesday Night
East winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A slight chance of showers and thunderstorms.
Thursday
East to southeast winds 15 to 20 knots, increasing to near 20 knots. Seas 4 to 6 feet, occasionally to 7 feet. A chance of showers with a slight chance of thunderstorms.
Thursday Night
East winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A slight chance of showers and thunderstorms.
Friday
East to southeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A slight chance of showers and thunderstorms.
Friday Night
East winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A slight chance of showers and thunderstorms.
Saturday
East winds 15 to 20 knots, decreasing to 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. A slight chance of showers and thunderstorms.
Saturday Night
East winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers.



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420 PM EDT Mon Mar 30 2026
 
 

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