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 ...

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

Rare rime ice and ground-level ice crystals form across Boise as deep temperature inversion creates perfect conditions for ...

Inversions are still in place across the northern valleys, leading to more haze, poor air quality, & areas of morning fog.

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

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

Thanksgiving is a time for gratitude. But in the Treasure Valley, it’s also a time for annoyance: It marks, unofficially and approximately, the start of inversion season. And indeed, inversion season ...

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.

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