As the cool air sinks, the warm air rises over the top and traps the cold air below. If you travel from downtown Boise to the ...

A winter temperature inversion has trapped pollution in the Salt Lake Valley this week, pushing Salt Lake City and nearby ...

The bottom line? High pressure ridge continues to build with declining air quality in northern valleys but rebounding ...

High pressure in place will contribute to dry, clear skies in the week ahead, while also creating a temperature inversion.

As the planet warms, humid heat waves and extreme rainfall are becoming more common in regions that are usually labeled ...

Western Idaho remains locked in stagnant weather with expanding valley fog and temperature inversions creating contrasting ...

A long stretch of humid heat followed by intense thunderstorms is a weather pattern historically seen mostly in and around ...

There can be long stretches throughout the year, especially during the winter, when it doesn't seem like the clouds want to break up. The lack of sunshine can come from what meteorologists call a ...

A ridge of high pressure will be centered over the region through the weekend, continuing a pattern of quiet, stable and ...

The bottom line? A big ridge of high pressure sets up shop across the western U.S. leading to inversion haze, bad air quality ...

Drive up to Bogus Basin right now and look out over the Treasure Valley; you’ll see a haze hanging over Boise and its surrounding cities. But for those below the haze … the view is not so interesting.