High pressure over the area will result in light winds and inversion conditions tonight through Tuesday. This will cause moisture and particulates to remain generally trapped in the valleys. This could result in diminished air quality that could affect public health, especially for people with respiratory sensitivities. AIR STAGNATION ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON PST TUESDAY

High pressure to bring more stagnation this weekend... AIR STAGNATION ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 8 AM PST TUESDAY

Air stagnation advisory remains in effect from 4:00 AM Tuesday (12/5/17) to 10:00 AM Saturday (12/9/17).