It's another nasty air-quality day across northern Utah.
The early morning fog across the Salt Lake Valley cleared just in the time for residents to inhale smog from what is officially designated as an "orange" air day.
Air quality will likely remain orange for Salt Lake come Monday, but is expected to go "red" or unhealthy for residents in Cache County.
The only part of Utah without air quality woes this week is Washington County.
Outdoor enthusiasts also were advised to take precautions Sunday on backcountry avalanche conditions.
The northern Utah mountain ranges — Provo, Uinta, Salt Lake, Ogden and Logan — were all under a "considerable" avalanche risk. The Skyline and Moab ranges had a moderate risk.