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 ...

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 ...

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 ...

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 ...

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 ...

Whether you’re a fan of Utah’s so-called Greatest Snow on Earth or not, winter is here, and so are the Wasatch Front’s famous inversions. Every year almost without fail, we are hit with inversions as ...

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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 ...

Most people know that unhealthy air quality can make it harder to breathe. But bad air—especially during inversions—can also irritate your eyes. “During an inversion, I recommend staying indoors as ...