Treasure Valley inversion strengthens as upper ridge moves overhead, bringing continued fog and air quality issues before ...

Seven-day Treasure Valley forecast shows continued fog pattern through weekend with high pressure maintaining inversions ...

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 weekend is ending with slightly warmer temperatures as the inversion continues through Monday. FOX 13 Meteorologist Nate ...

There can be long stretches throughout the year, especially during the winter, when it doesn't seem like the clouds want to break up. The lack of sunshine can come from what meteorologists call a ...

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 ridge of high pressure is keeping out any potential stormy weather until next week when it is expected to weaken slightly ...

A stubborn ridge of high pressure will remain parked over the region through the rest of the work week and into the weekend, ...

A rare temperature inversion has flipped Bay Area weather, warming mountain ridges while cold, foggy valleys grapple with poor air quality and low visibility.

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

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