All This Smoke Not Just From State Fires

Hazy conditions across the West are in part due to large wildfires raging across Canada, blazes fueled by the same hot, dry conditions that have sparked fires in the United States.

The smoke has caused spectacular red sunsets in places like Seattle and prompted air quality warnings in many states.

Blazes are burning in parts of British Columbia, Alberta and Saskatchewan.

Haze from smoke drifting south from the wildfires lingered over parts of eastern Colorado for the third straight day on Wednesday.

Air quality advisories have also been issued in places like North and South Dakota.