Winter Weather Advisory issued January 1 at 10:37AM MST until January 1 at 11:00PM MST by NWS Boise ID
Issue date: 2026-01-01T17:37+00:00
* WHAT...Light freezing rain expected. Ice accumulations up to a tenth of an inch. * WHERE...Lower Treasure Valley Zones. * WHEN...Until 11 PM MST /10 PM PST/ this evening. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Very slippery sidewalks, roads and bridges are possible, especially in colder pockets of the valley.
Air Stagnation Advisory issued December 31 at 1:30PM MST until January 3 at 8:00AM MST by NWS Boise ID
Issue date: 2025-12-31T20:30+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 continue to trap pollutants. * WHERE...Portions of southwest Idaho and southeast Oregon. * WHEN...Until 8 AM MST /7 AM PST/ Saturday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems.
