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 ...

DECATUR, Ill. (WAND) - A weather inversion is a phenomenon in which the typical temperature pattern of the atmosphere is reversed. Typically, air temperature decreases as altitude increases, but ...

Valley fog expected tonight in Treasure Valley as melting snow adds moisture. Temperature inversion strengthening with patchy fog through weekend ...

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