Wildfire Smoke Updates Home | Archived Wildfire Smoke Updates

Wildfire Smoke Update
for
Tuesday, August 6, 2013 8:18 AM

Satellite Photos | Locations and Smoke Conditions


Today's Report and Forecast Today's Summary
By late yesterday evening and overnight, smoke from Idaho did move into parts of southwestern Montana to cause slightly elevated particulate concentrations. However, these concentrations stayed low enough that air quality has remained GOOD even until this morning. All reporting locations are showing GOOD air quality this morning across Montana.

Quieter weather is in store for today as a ridge of high pressure moves near the region. Skies will be clearer and temperatures will be closer to seasonable averages, in the 80s and low 90s. Winds will be generally light with the occasional moderate gust late this afternoon and relative humidity values will bottom out between 20%-40%. There is a slight chance for isolated storms across far northern Montana, from the Rocky Mountain Front across the hi-line. High atmospheric winds will generally blow to the southeast and air quality is expected to remain GOOD with little fire activity across Montana and below average to average fire activity late this afternoon across Idaho.
All reporting locations are showing GOOD air quality this morning across Montana.

There will be another update this afternoon with a full forecast for the next few days.
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




Long-range visibility is excellent over the Helena Valley this morning. 

Long-range visibility is excellent over the Helena Valley this morning.


 
Any evidence of wildfire smoke is tough to find in Montana this morning, but here in Yellowstone at the Mt. Washburn webcam, we can see that there is plenty of haze in the air for park-goers today.

Any evidence of wildfire smoke is tough to find in Montana this morning, but here in Yellowstone at the Mt. Washburn webcam, we can see that there is plenty of haze in the air for park-goers today.





 




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.