- Contact information
- For information on air quality and forecasts, contact:
- Mike Majewski
Current air quality outlook
Department meteorologists use monitoring data along with weather predictions to determine when and where an air quality notice is needed. The meteorologists submit daily air quality forecasts for eight Wisconsin cities to EPA's AirNow website. Below is the current air quality forecast for Wisconsin, which will be updated as needed.
Monday, August 22 - Tuesday, August 23, 2016
Particle pollution (PM2.5)
Good air quality.
A mix of Good and Moderate air quality.
Ozone and PM2.5 air quality are in the Good range across Wisconsin this Monday morning. A high pressure system will drift into the eastern Great lakes region today. This will provide the region with mild temperatures, light southerly winds and sunshine. Air quality should remain in the Good range.
Stronger southerly winds, warmer temperatures and continued sunshine are expected on Tuesday. A lake breeze is possible along the Lake Michigan shoreline. This scenario will provide favorable conditions for some elevated ozone concentrations over eastern Wisconsin. Graphical output from the Canadian model provides a good depiction of the areal coverage (see below) of the ozone plume. The latest run of the U.S. ozone model is predicting lower concentrations for Tuesday. The current forecast is for Moderate levels of ozone over eastern Wisconsin on Tuesday. This forecast will be updated as later data becomes available.
Extended outlook: A cold front will cross Wisconsin on Wednesday bringing chances of clouds and rain. Winds will turn northwesterly behind the front as high pressure moves in late Wednesday and Thursday. Air quality will be in the Good range.
Air Quality Index (AQI) ranges
For more information, see the U.S. EPA's Air Quality Index - A Guide to Air Quality and Your Health.
of Health Concern
|Numerical Value||8-hr Ozone (ppb)||24-hr PM2.5 (ug/m3)|
|Good||0-50||0-54||0.0 to 12.0|
|Moderate||51-100||55-70||12.1 to 35.4|
|Unhealthy for Sensitive Groups||101-150||71-85||35.5 to 55.4|
|Unhealthy||151-200||86-105||55.5 to 140.4|
|Very Unhealthy||201-300||106-200||140.5 to 210.4|
|Hazardous||> 300||> 201||> 210.4|