- 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, which will be updated as needed.
Monday, December 9 - Monday, December 16, 2013
Note: The ozone season ended October 15. There will be no ozone forecasts until April 2014.
Particle pollution (PM2.5)
There will be stretches of Good and Moderate air quality this week.
Hourly PM2.5 values are generally in the Moderate range across Wisconsin this Monday morning. Moderate concentrations are expected to continue into Tuesday. A weak weather system will pass through Wisconsin by Tuesday afternoon. This will cause the winds to shift to a northwesterly direction and bring some colder and cleaner into Wisconsin for Wednesday. By Thursday an area of high pressure will shift to the southeast, allowing southwest to bring milder air back into the region. Conditions will become favorable for Moderate levels of PM2.5 for Thursday and Friday and possibly Saturday. As of December 9, it looks like a reinforcing shot of arctic air could move back over the Midwest by next Sunday and Monday. This will lead to Good air quality.
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||0-59||0.0 to 12.0|
|Moderate||51-100||60-75||12.1 to 35.4|
|Unhealthy for Sensitive Groups||101-150||76-95||35.5 to 55.4|
|Unhealthy||151-200||96-115||55.5 to 140.4|
|Very Unhealthy||201-300||116-374||140.5 to 210.4|
|Hazardous||> 300||> 374||> 210.4|