Smoke from Canadian wildfires is once again flowing into North Dakota, rekindling air quality concerns over the next few days ...

Smoke traveling from wildfires in Canada, North Dakota and Minnesota triggered an air quality warning in northern Wisconsin.

Maps show where new plumes of smoke will cause hazy skies through the end of the week. Low-level smoke is forecast to spread ...

The fire menacing Flin Flon began a week ago near ... In some parts of the U.S., air quality reached "unhealthy" levels Sunday in North Dakota and small swaths of Montana, Minnesota and South ...

Smoke from Canadian wildfires could contribute to hazy skies and a "dim" sun for several states later this week.

Smoke from Canadian wildfires is flowing into North Dakota again, lowering air quality to unhealthy levels in western and ...

Environmental Quality closely monitors its air sampling network across the state, so the public is informed and able to take ...

Air quality in western and central North Dakota reached “very unhealthy” levels Wednesday morning as smoke from Canadian ...