Wildfire Smoke Updates Home | Archived Wildfire Smoke Updates | Today's Air

Wildfire Smoke Update
for
Sunday, July 22, 2012 7:55 PM

Satellite Photos | Locations and Smoke Conditions


Today's Report and Forecast Today's Summary
Air quality isGOOD again across the state. Fires here and nearby are not acting erratically or producing tons of smoke. Yesterday, there was some very thin smoke seen in western Montana, but today there hasn’t been much of any smoke.

Monday and Tuesday may be critical fire weather days with the passing of a low pressure system and cold front on Monday. There may be thunderstorms, low humidity, gusty winds, and a wind shift. On Tuesday, the air will still be dry and we may have gusty winds. A Fire Weather Watch is in effect for Monday across central Montana, and more highlights may be forthcoming tomorrow and Tuesday. The rest of the week will be dry with a warming trend through the weekend.
Air quality is GOOD
today, with minimal fire activity nearby. A weather system will pass tomorrow that has prompted Fire Weather Watches in central Montana. More highlights may be necessary as the forecast becomes more clear and gusty, dry winds will continue on Tuesday.
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: DEQMTSmoke@mt.gov




This is the visible satellite image from 6:15 this evening. 

This is the visible satellite image from 6:15 this evening.


 





This morning’s analysis from NOAA’s satellite services division shows the active fires in Montana and the smoke plumes combining and spreading downwind (the analyzed smoke is based on yesterday’s satellite coverage, the fire detects are based on last nights satellite coverage).

This morning’s analysis from NOAA’s satellite services division shows the active fires in Montana and the smoke plumes combining and spreading downwind (the analyzed smoke is based on yesterday’s satellite coverage, the fire detects are based on last nights satellite coverage).

Red indicates hot spot detected. Green represents thin smoke, yellow is moderate smoke, and pink is dense smoke. Fire size is exaggerated for visibility at this scale. To identify individual fires on graphic above go here: http://activefiremaps.fs.fed.us/lg_fire2.php 




Real time particulate information is currently available in most of the larger urban areas from MTDEQ's Today's Air website.

Today's particulate report below compares particulate levels received from DEQ's
reporting stations with MTDEQ’s Health Effect Categories.

Locations and severity of PM 2.5 particulate values over the past 24 hours from the time above.
Health Effects Categories City
  Hazardous  
  Very Unhealthy  
  Unhealthy  
  Unhealthy for Sensitive Groups  
  Moderate

  

  Good

 All reporting sites 

B1(x) One-hour BAM value (number of values)
B8(x) Eight-hour average BAM
B24 24 hour  average BAM value
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.