The persistent temperature inversion that has gripped the Treasure Valley for over a week is finally breaking down as drier, colder air works in on northerly flow aloft. Low clouds have begun eroding Friday afternoon, marking the beginning of the end for the stubborn weather pattern.
Drying aloft will continue through Friday night, expanding the erosion of clouds across portions of southeast Oregon and the lower Snake Plain. In the Snake Plain, Boise sits on the edge of clearing overnight, with areas to the south and east likely remaining under clouds through midday Saturday.
I have growing confidence that all areas will break out of the low clouds by Saturday afternoon, finally ending the extended period of poor valley conditions.
Weekend brings clear, cold conditions
Saturday outlook
Saturday will feature a transition from partly sunny to gradually becoming sunny, with highs near 34 degrees. While temperatures remain below normal, the return of sunshine will be a welcome change after more than a week of overcast skies…