...AIR STAGNATION ADVISORY REMAINS IN EFFECT FROM 5 AM MST /4 AM PST/ EARLY THIS MORNING TO 5 AM MST /4 AM PST/ MONDAY... * 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 south central and southwest Idaho and northeast and southeast Oregon. * WHEN...From 5 AM MST /4 AM PST/ early this morning to 5 AM MST /4 AM PST/ Monday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. PRECAUTIONARY/PREPAREDNESS ACTIONS... Persons with respiratory illness should follow their physicians advice for dealing with high levels of air pollution during periods of stagnant air. &&