Three large wildfires upwind of us are the main cause of smoke this weekend: the Yellow Lake Fire in Utah, and the Pack Trail Fire and Fish Creek Fire in Wyoming. Particulate Matter concentrations are Moderate at almost every location in Colorado. 

Today, the heaviest smoke is expected on the Western Slope, especially along the I-70 corridor. Grand Junction, Palisade, Delta, Montrose, Rifle, Glenwood Springs, and Aspen will likely see the worst of it. Expect lingering smoke overnight Sunday night into Monday on the western slope. 

As for eastern Colorado, the HRRR-Smoke model forecasts widespread smoke moving in on Monday. The smoke is expected to move in from Wyoming Monday morning, pushing south through the day on Monday and overnight into Tuesday.

For information on how to protect your health during a wildfire, visit our website.

Satellite imagery shows smoke (in gray) visible over Utah, Colorado, and Wyoming.

The HRRR-Smoke model's near-surface smoke product shows smoke pushing through eastern Colorado on Monday.