Even though it was eerie, the misty air was “pretty typical” of a winter inversion — “especially for one where we don’t yet have the snow on the ground,” he said. Snow can actually ...

An Air Stagnation Advisory is in place for parts of southwest and west-central Idaho, as well as northeast and southeast Oregon. The advisory lasts until Friday at 11 AM MST. This happens when the ...

A surface inversion is preventing the normal mixing of air, meaning pollutants will remain trapped at lower altitudes.