Smoke from forest fires in Canada has settled over the region. Much of the haze is due to fires burning near Kelowna, B.C., about 180 miles northwest of Spokane.
British Columbia officials reported 739 forest fires across the province today, more than twice as many as one week ago. Lightning strikes ignited a rash of new fires this weekend.
The Terrace Mountain fire, north of Kelowna, grew to more than 17,000 acres this morning.
The surge of fires in Canada this summer threatens to overwhelm firefighters.