Air Stagnation Advisory issued December 28 at 12:15PM MST until January 1 at 10:00AM MST by NWS Boise ID
Issue date: 2025-12-28T19:15+00:00
* WHAT...An extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will trap pollutants in the valleys. * WHERE...Portions of southwest Idaho and southeast Oregon. * WHEN...From 6 PM MST /5 PM PST/ this evening to 10 AM MST /9 AM PST/ Thursday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems.
