Værmelding for Sparta Post Office (historical)

Air Stagnation Advisory issued January 6 at 12:58PM MST until January 10 at 11:00AM MST by NWS Boise ID* WHAT...An extended period of stagnant air, with light winds andlittle vertical mixing. This is due to an inversion near thesurface that will continue to trap pollutants.* WHERE...Portions of southwest and west central Idaho and northeastand southeast Oregon.* WHEN...From 11 PM MST /10 PM PST/ this evening to 11 AM MST /10 AMPST/ Friday.* IMPACTS...Poor air quality may cause issues for people withrespiratory problems.Persons with respiratory illness should follow their physiciansadvice for dealing with high levels of air pollution during periodsof stagnant air.

National Weather Service