Posted: Jul 28, 2013 9:47 PM by Meteorologist Mike Heard
Updated: Jul 28, 2013 9:52 PM
Air quality conditions worsened Sunday afternoon/evening across western Montana. According to the MDEQ smoke particulates increased in Frenchtown, Seeley Lake and Butte enough to rate the air quality as "MODERATE".
For Butte the 8 hour rating was 24 µg/m3 and the 24 hour rating is 19 µg/m3. A moderate rating means sensitive groups should limit prolonged outdoor exertion.
Frenchtown and Seeley Lake was also rated in the "Moderate" range Sunday evening and Hamilton was rated "Unhealthy for sensitive groups".
Forest fire smoke is coming from fires in Montana, central Idaho along with central Washington State.
For the latest MDEQ air quality rating follow this link: http://todaysair.mt.gov/