While inversions are common in the Treasure Valley, this one has lasted an unusually long time. What’s going on? When will it end?

Treasure Valley inversion remains locked in place through Thursday with valley temps near 31 degrees. Brief relief possible ...

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 top of Bogus Basin Road, you will see the temperature rise instead of fall ...

Oregon’s temperature inversion continues as stagnant air, fog, and chilly temperatures remain across much of the Pacific ...

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

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

Expect little to no rain as strong high pressure dominates our weather pattern for the next week or two. Day-to-day conditions are likely going to be very similar -- We’ll start out with some areas of ...