An air quality index of 300 or higher is considered hazardous, and the record-breaking smoke AQI in Grand Portage reached 800 ...

Smoke will clear northwest Minnesota early Tuesday morning and air quality will begin to improve from northwest to southeast ...

Canadian wildfire smoke has become so intense that even young, healthy Minnesotans are experiencing symptoms similar to ...

Winds from the northwest will pull wildfire smoke back into Minnesota skies over the weekend, as well a chance for rain ...

The Minnesota Pollution Control Agency issued an air quality alert for much of state through Wednesday as smoke from ...

From Sunday to Tuesday, smoke in northwest Canada swirled into the northern Plains, giving Minnesota some of the worst air ...

Minnesota authorities warned of unhealthy levels of exposure to particles from wildfires. Symptoms include shortness of ...

The U.S. Environmental Protection Agency warns that wildfire smoke contains dangerous pollutants in the form of fine ...

Tracking how that smoke will move from Canada, or when it's going to cause problems at the surface, isn't easy.

The Canadian Wildfires have forced thousands of Canadians to flee their homes and sent smoke as far as Europe.

Canada is having another bad wildfire season, and more than 27,000 people in three provinces have been forced to evacuate.

The aurora could be visible and vibrant Sunday night but haze from wildfire smoke might make it difficult to see in Minnesota ...