Tropical Moisture Brings Slight Risk of Excessive Rainfall to the Southwest; Strong to Locally Severe Storms on the Plains

Heavy rain and flash flooding are possible across portions of the Southwest through Friday, where Flood Watches are in effect. Strong to locally severe thunderstorms are possible today across portions of the Plains. A tropical wave is causing heavy rainfall in Puerto Rico and the Virgin Islands, which may cause urban and small stream flooding and landslides today. Read More >

Hazardous Weather Conditions

Last Update: 328 PM CDT Thu Sep 18 2025

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Duluth, MN Local Forecast Office

21NM NNE Ashland WI

Marine Zone Forecast

Tonight

East wind 15 to 20 knots with gusts to around 25 knots. Slight chance of rain showers through the night. Slight chance of thunderstorms in the late evening and overnight. Waves 3 to 5 feet.

Friday

East wind 15 to 20 knots with gusts to around 25 knots. Chance of rain showers and slight chance of thunderstorms. Waves 4 to 6 feet. Waves occasionally to 8 feet.

Friday Night

East wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots after midnight. Chance of rain showers in the evening. Slight chance of thunderstorms through the night. Rain showers likely after midnight. Waves 4 to 6 feet subsiding to 2 to 4 feet early in the morning. Waves occasionally to 8 feet.

Saturday

East wind 5 to 10 knots. Chance of rain showers in the morning. Slight chance of thunderstorms through the day. Rain showers likely in the afternoon. Waves 1 to 2 feet.