Upcoming heat wave could hinder firefighting efforts in scorched West

Dozens of wildfires blazing through the Western U.S. are continuing to shroud surrounding areas in smoke and haze.

Dozens of wildfires blazing through the Western U.S. are continuing to shroud surrounding areas in smoke and haze. At least 92 large wildfires are continuing to burn in the West, mostly in California, Oregon and Washington. Evacuation orders are in effect for 17 of the active fires. The Caldor Fire in Grizzly Flats, California, about 100 miles east of Sacramento, continues to spread, having burned through 126,566 acres by Wednesday evening and remains just 12% contained. Smoke from the wildfires is continuing to bring poor air quality to much of the West, especially across the Northwest and northern Rockies. Seven states, from California to Colorado, are under air quality alerts on Wednesday.