This is a prediction for the distribution of smoke from active wildfires for 6 p.m. MDT July 20, 2018. If correct, the areas that will be inundated with heavy smoke will include portions of Northern California, Southern Oregon, and Northern Nevada.

Much of the smoke is coming from the lightning fires in Southwest Oregon, the Boylston Fire in Central Oregon, and the Ferguson Fire near Yosemite National Park in California. The Lake Christine Fire which has been burning for weeks in Colorado is also a smoke contributor.