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 >
| NWS Forecast for: Duluth MN to Port Wing WI (LSZ145) Issued by: National Weather Service Duluth, MN Last Update: 359 AM CDT Thu Sep 18 2025 |  |
Today: Northeast wind 20 to 25 knots. Gusts up to 25 knots increasing to 30 knots in the late morning and afternoon. Chance of rain showers in the morning. Slight chance of thunderstorms through the day. Slight chance of rain showers in the afternoon. Waves 4 to 6 feet. Waves occasionally to 8 feet. Tonight: Northeast wind 15 to 20 knots. Gusts up to 30 knots decreasing to 25 knots in the late evening and overnight. Slight chance of rain showers in the evening. Slight chance of thunderstorms through the night. Chance of rain showers after midnight. Waves 4 to 6 feet. Waves occasionally to 7 feet. Friday: Northeast wind 20 to 25 knots. Gusts up to 25 knots increasing to 30 knots in the late morning and afternoon. Rain showers likely in the morning. Slight chance of thunderstorms through the day. Chance of rain showers in the afternoon. Waves 4 to 6 feet. Waves occasionally to 8 feet. Friday Night: Northeast wind 15 to 20 knots. Gusts up to 30 knots. Rain showers likely and slight chance of thunderstorms. Waves 4 to 6 feet subsiding to 2 to 4 feet early in the morning. Waves occasionally to 8 feet. | |
| Zone Forecast: Duluth MN to Port Wing WI (LSZ145) | |
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