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Wildfire Smoke Update
Monday, September 9, 2013 8:13 AM

Satellite Photos | Locations and Smoke Conditions

Today's Report and Forecast Today's Summary
Air quality continues to be GOOD around the state this morning. The center of the large low pressure system that has brought the change in weather over the weekend is currently sitting over north-central Montana, roughly near Malta. There are still a few scattered rain showers across parts of central and far western Montana this morning. Air quality will stay GOOD around the state today as this large low pressure system continues to slowly move east. A chance of rain and afternoon thunderstorms will remain in the forecast yet again, but activity will taper off across western Montana as a ridge of high pressure starts to build into the area. Temperatures will stay cool again this afternoon with gusty west/northwest winds possible this afternoon. There will be another update this afternoon with a full forecast for the week ahead.
Residents near active fires and under plumes aloft need to remain aware of current conditions and use the visibility guidelines to guide their activity decisions as the situation changes.

Air Quality Bureau
Montana Department of Environmental Quality
Phone: (406) 444-3490
Email: DEQ-ARMB-Admin@mt.gov

This is the visible satellite image from 8:00 this morning. 

This is the visible satellite image from 8:00 this morning.

This webcam in the Ovando Valley shows cloudy, cool conditions with patchy fog in some low-lying areas.

This webcam in the Ovando Valley shows cloudy, cool conditions with patchy fog in some low-lying areas.


The smoke report below compares particulate levels where information is available to MDEQ’s Health Effects Categories. Real time particulate information is currently available in most of the larger urban areas from several different sources including: DEQ run PM-10 BAMS and PM2.5 BAMS, NWS ASOS visibility monitors, and USFS remote access Nephelometers and BAMS. These advisories represent conditions between midnight and 8 AM and may change substantially throughout the day.

Locations and severity of forest fire smoke reports since midnight of the date above at reporting stations.
Health Effects Categories City
  Very Unhealthy  
  Unhealthy for Sensitive Groups  



 All reporting locations 

B1(x) One-hour BAM value (number of values)
B8(x) Eight-hour average BAM
B24 24 hour  average BAM value
Vis(x) Visibility value (number of hours)
Vis(am/pm) Visibility value from twice/day reporting stations

Local impacts in areas immediately adjacent to active fires are expected to exceed some or all of the advisory levels.  DEQ recommends the use of local visibility guidelines to evaluate possible health risks and make informed activity decisions.