An inversion above Utah Valley increases the number of pollutants in the air. Large storm systems can push the polluted air out of the valley. (Photo courtesy of Chris Bunker) Each winter, Utahns ...

A long stretch of humid heat followed by intense thunderstorms is a weather pattern historically seen mostly in and around the tropics. But climate change is making humid heat waves and extreme storms ...

You might feel like holding your breath the next few days! Unfortunately, a prolonged inversion is expected to last until later this week. During an inversion, cold air is trapped in the valleys by a ...

Have you ever walked outside in Pueblo on a cold morning and seen the haze in the sky? Or watched our morning forecasts and seen Woodland Park is warmer than Pueblo? It’s very common at this time of ...

AIR STAGNATION ADVISORY is in effect through 11 PM Monday for the Kootenai/Cabinet Region, West Glacier Region, Flathead/Mission Valleys, Lower Clark Fork Region, Missoula/Bitterroot Valleys, ...

Valley inversions across northern & central Utah will stay in place through Saturday. With cold air trapped in the valleys, some temperatures could drop a little lower than yesterday. As the inversion ...

SALT LAKE CITY (KUTV) — People along the Wasatch Front were right in the middle of a thick inversion that brought bad air and limited visibility. The latest round of unhealthy air came right during ...

SALT LAKE CITY (KUTV) — While the air quality was much improved Saturday, our inversion will restrengthen and bring worsening air quality and haze once again through the day and into the middle of the ...