The western Canadian province of British Columbia was under a state of emergency order late Friday, hours after most residents of a city farther north had fled ahead of a deadline to evacuate because of a dangerous wildfire.
The northern wildfire, near Yellowknife, a city of 20,000 people and the capital of the Northwest Territories, was expected to reach the city limits by the weekend. The mass migration from Yellowknife occurred as blazes hundreds of miles away threatened Kelowna, a much…