Updated Sept. 19, 2020 at 4:45 p.m.
Wildfire Smoke Information – AIR QUALITY ALERT
Smoke from wildfires burning in California, Oregon and Washington is making its way across Montana. An AIR QUALITY ALERT remains in effect for the few remaining counties with particulate levels at UNHEALTHY FOR SENSITIVE GROUPS. Air quality has improved significantly since yesterday, and will continue to improve as a low-pressure system moves through. More detailed information is available here: http://bit.ly/wildfiresmokereport
An AIR QUALITY ALERT is in effect for Flathead, Glacier, Lake, Lincoln, Mineral, Missoula, and Sanders Counties until 9am MDT Sunday due to elevated particulate concentrations. Air quality has improved today, but remains at UNHEALTHY FOR SENSITIVE GROUPS in Cut Bank, Flathead Valley, Frenchtown, Libby, Havre, Seeley Lake, and Thompson Falls.
A low-pressure system is moving through, bringing cleaner air along with precipitation. Air quality will continue to improve today as this system moves from southwest to northeast Montana. Sunday, air quality should be GOOD statewide.
Keep track of hourly concentrations at TodaysAir.mt.gov.
In the absence of a monitor, use the visibility guidelines to determine local air quality conditions.