Wildland fire naturally occurs in and near the Mono Basin from spring through fall. Yosemite National Park immediately upwind often has several lightning fires burning at any time during the summer. Fires as far away as the coast can turn Mono Basin skies smoky. Visit the Great Basin Unified Air Pollution Control District's Smoke Blog to find out the best local information on current air quality.

Local
Great Basin District Smoke Blog
Inyo National Forest Fire Information (USFS)

Yosemite National Park
Yosemite National Park Current Fire Activity
Yosemite National Park Current Air Quality and Smoke Monitoring

California
California Fires (YubaNet)
California Incidents (NIFC)
State Fire Information (CDF)
Daily satellite image (NASA)
Seasonal fire forecast (UC Merced)