Heavy to Excessive Rainfall in the Southeast U.S.; Critical Fire Weather in the Northern Plains and Upper Midwest

A slow-moving storm system will continue to produce widespread heavy showers and thunderstorms which may bring excessive rainfall and flooding as it tracks across the Southeast and Mid-Atlantic regions today into Wednesday. Gusty winds and dry fuels under potential record setting temperatures will support widespread critical fire weather in the northern Plains and Upper Midwest today. Read More >

Hazardous Weather Conditions

Last Update: 1027 AM EDT Mon May 12 2025

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Key West, FL Local Forecast Office

3NM SE Key Largo FL

Marine Zone Forecast

This Afternoon

Southeast to south winds 10 to 15 knots, becoming south to southwest. Seas 2 to 3 feet, subsiding to around 2 feet. Nearshore waters a light to moderate chop. Winds and seas higher in and near numerous showers and scattered thunderstorms.

Tonight

Southwest winds 10 to 15 knots, decreasing to near 10 knots. Seas around 2 feet, subsiding to 1 to 2 feet. Nearshore waters a light to moderate chop, becoming a light chop. Winds and seas higher in and near numerous showers and scattered thunderstorms.

Tuesday

West winds near 10 knots, becoming west to northwest and decreasing to 5 to 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop, becoming smooth to a light chop. Scattered showers and isolated thunderstorms.

Tuesday Night

Northwest winds 5 to 10 knots, becoming variable. Seas 1 to 2 feet, subsiding to around 1 foot. Nearshore waters smooth to a light chop. Scattered showers and isolated thunderstorms.

Wednesday

Variable winds decreasing to near 5 knots, becoming east to southeast. Seas around 1 foot. Nearshore waters becoming smooth. Isolated showers.

Wednesday Night Through Friday

East to southeast winds near 5 knots. Seas around 1 foot. Nearshore waters smooth. Isolated showers.

Friday Night

East to southeast winds increasing to 5 to 10 knots. Seas around 1 foot. Nearshore waters becoming smooth to a light chop. Isolated showers.