Dense Smoke — Idaho Palouse, Idaho

2020-09-12 to 2020-09-19 · Idaho Palouse, Idaho

Event narrative

An air quality sensor in Moscow recorded unhealthy air quality from September 12th through 19th. It deteriorated to very unhealthy conditions before improving with the arrival of a cold front which ventilated the area.

Wider weather episode

Multiple large wildfires in Washington, Oregon, and surrounding states produced copious quantities of dense smoke throughout the month of September. The smoke from these fires severely degraded air quality across much of northern Idaho in mid-September. Numerous communities in the Idaho Panhandle suffered periods of very unhealthy to hazardous air quality.

Source: NOAA Storm Events Database, event_id 922096. Narrative written by the NWS forecast office that issued the report.