Active AlertsTimberstone Golf Course, ID

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.

Persons with respiratory illness should follow their physicians advice for dealing with high levels of air pollution during periods of stagnant air.