There's a haze in the sky across a large portion of the Midwest. The smoke coming from more than 210 fires burning in Canada, according to the Canadian Interagency Forest Fire Center, on Friday, June 6.

Hamilton, Burlington, Brantford and surrounding areas are expected to see smoke from wildfires in Western Canada impact the air Thursday night into Friday morning, says Environment Canada.

Online resources help you make sense of the hazy skies and poor air quality you might be experiencing as a result of fires to the north. Since the weekend, several major fires have been raging across Canada’s central and western provinces.