Severe thunderstorms are in the forecast in eastern North Dakota and northwestern Minnesota this weekend.
Cooler air will move into the region this weekend and will last through the week, and showers and thunderstorms will occur ahead of this system, according to the National Weather Service.
Afternoon thunderstorms are likely on Friday, Aug. 20, and will likely continue through Friday night. Isolated storms are expected near Grand Forks, Thief River Falls and Roseau, with more scattered storms expected near Ada, Fosston, Bemidji and Fargo.
The strongest storms are expected to produce large hail, tornadoes, damaging wind gusts and very high fall rainfall rates. Flash flooding will be possible in some areas, according to the weather service.
Residents in the affected areas are advised to have a way to receive warnings and be ready to act.
Saturday is expected to be clearer and cooler, with high temperatures of 67 to 72 forecast.