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Wildfire Smoke Update
for
Wednesday, August 7, 2013 8:55 AM

Satellite Photos | Locations and Smoke Conditions


Today's Report and Forecast Today's Summary
Air quality is GOOD at all reporting locations this morning. Atmospheric winds diverted incoming smoke from Idaho and Wyoming to keep our big sky essentially smoke-free. The weather today will be similar to yesterday but with slightly warmer temperatures. Winds will be light with some moderate gusts in the afternoon, and relative humidity values will generally stay within the 20-40% range. We will see more of those puffy cumulus clouds along with a chance of isolated thunderstorms along the Rocky Mountain Front and across the hi-line. Atmospheric winds should again keep smoke away from most of our state except for the southernmost portion of Montana along the Idaho border. However, there will only be a visible haze and air quality will remain GOOD. There will be another update this afternoon with a full forecast.
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.

Kristen Martin
State Air Quality Meteorologist
Air Resource Management Bureau
Montana Department of Environmental Quality
Phone: (406) 444-0283
Email: kmartin@mt.gov




This is the visible satellite image from 5:45 yesterday evening. A few light smoke plumes are visible across eastern Idaho, due south of the Bitterroot Valley, but the largest smoke plume is in Wyoming. This is a large fire that continues to grow in the Shoshone National Forest, east of the Tetons. 

This is the visible satellite image from 5:45 yesterday evening. A few light smoke plumes are visible across eastern Idaho, due south of the Bitterroot Valley, but the largest smoke plume is in Wyoming. This is a large fire that continues to grow in the Shoshone National Forest, east of the Tetons.


 
Skies are mostly clear across Montana. However, many places across Wyoming are dealing with smoke and haze this morning, like here at the Grand Tetons.

Skies are mostly clear across Montana. However, many places across Wyoming are dealing with smoke and haze this morning, like here at the Grand Tetons.





 




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
  Hazardous  
  Very Unhealthy  
  Unhealthy  
  Unhealthy for Sensitive Groups  
  Moderate

  

  Good

 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.