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 ...

Cool weather and the holiday season may seem like the perfect excuse to cozy up by the fire, but too many blazing yule logs can dirty the air and put some of your neighbors at risk. Hazy skies are a ...

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 ...

A view from the foothills north of Tucson Wednesday might have been a preview of a winter phenomenon: air inversions that trap pollutants near the ground and form a sort of brown cloud. Haze was ...