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 ...

For those hoping to get relief from the inversion, you’ll have to wait until at least early next week, according to the ...

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

The greatest impacts are expected in the Lower Treasure Valley west of Boise and other low-lying valley locations. Rural roads and areas near open fields and waterways are especially prone to thick ...

As the inversion strengthens, colder air will pool in the valleys, leading to below-normal temperatures and a higher chance ...