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 ...

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

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 ...

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

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 ...

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

Happy Sunday, Utah! Calm weather conditions are expected through Sunday and the workweek as high pressure continues to build ...