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: Sand Island to Bayfield WI (LSZ147) Issued by: National Weather Service Duluth, MN Last Update: 359 AM CDT Thu Sep 18 2025 |  |
Today: Northeast wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots in the late morning and afternoon. Slight chance of rain showers through the day. Waves 3 to 5 feet. Tonight: East wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots after midnight. Slight chance of showers and thunderstorms. Waves 2 to 4 feet. Friday: East wind 15 to 20 knots. Gusts up to 20 knots increasing to 30 knots. Slight chance of thunderstorms in the morning. Chance of rain showers through the day. Waves 4 to 6 feet. Waves occasionally to 7 feet. Friday Night: East wind 15 to 20 knots with gusts to around 25 knots easing to 5 to 10 knots early in the morning. Chance of rain showers and slight chance of thunderstorms. Waves 4 to 6 feet subsiding to 1 to 3 feet early in the morning. Waves occasionally to 7 feet. | |
| Zone Forecast: Sand Island to Bayfield WI (LSZ147) | |
Visit your local NWS office at: https://www.weather.gov/dlh |