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

We explain the record-breaking ridge of high pressure setting up over British Columbia. The atmospheric pattern is creating a ...

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

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.

PITTSBURGH (KDKA) -- An inversion is keeping moisture trapped at the surface, with our continued seasonably cool temperatures. That is a fancy way of saying our weather will not change much tonight or ...

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

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 ...

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 ...

As the planet warms, humid heat waves and extreme rainfall are becoming more common in regions that are usually labeled ...

PORTLAND, Ore. (KOIN) – Have you noticed how cold it has been the last few mornings? How about the fog that’s been preventing the morning sunrise from gracing the picturesque sky of Portland? This was ...

Normally, as you go up into the atmosphere, temperature decreases with height. But this is not always the case. The atmosphere is made up of many different layers that have different characteristics.

LANSING, Mich (WLNS) — Michiganders are used to the gray, cloudy skies of winter — but do you know why it stays this way for so long? It is a phenomenon called an inversion. Most of January had a ...