Winter Air Quality Update & Forecast
Locations and Air Quality Conditions
Tuesday, December 3, 2013 3:40 PM
This is the visible satellite image from 3:00 this afternoon. Clouds from our latest weather system are still hanging over most of the state today.
With yesterday's huge weather system and strong cold front, air quality has become GOOD in all locations today.
On Wednesday, almost all traces of this weather system will have moved east and a large, Arctic high pressure system will move in behind it. Temperatures will be bitterly cold, winds will become calm, and valley inversions will re-develop across western Montana. Dispersion, especially at low elevations near valley bottoms, will be generally poor through the weekend. Because of the valley inversions and cold temperatures, air quality may also gradually deteriorate throughout the end of the week, especially in far northwestern Montana.
State Air Quality Meteorologist
Air Resource Management Bureau
Montana Department of Environmental Quality
Phone: (406) 444-0283
Tomorrow afternoon's 3-hour average dispersion forecast from the Pacific Northwest Modeling Consortium.
Real time particulate information is currently available in most of the larger urban
areas from MDEQ's Today's