Dallas-Fort Worth is also under risk for excessive rainfall on Friday afternoon and evening, with heavy showers and thunderstorms expected and flash flooding possible in the urban corridors.

Here's what public health officials recommend for people with heart or lung conditions, older adults, children and teens.

Dense Wildfire Smoke from Canadian Fires will continue to bring Unhealthy Air Quality to the Twin Cities and surrounding areas Today into Saturday morning then Southerly Winds Aloft will push the Smoke back north Saturday afternoon and Air Quality will be much improved Saturday afternoon and Sunday.