Treasure Valley inversion strengthens as stratus deck expands across region. Valley temperatures stuck in 30s while mountains ...

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? Our stubborn inversion setup will remain in place to start out the workweek with our air quality improved ...

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

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

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

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

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.