- 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.
Friday, February 17 - Monday, February 20, 2017
Note: Ozone monitoring season ended on October 15, 2016. Ozone forecasts will resume in late April, when the 2017 ozone season begins.
Particle pollution (PM2.5)
Good and Moderate levels.
PM2.5 air quality is in the Good range across Wisconsin this Friday morning. Hourly values are rising at some sites so low-end Moderate levels may be reached at scattered sites. Today will be mild with temperatures reaching the 50s and light southerly winds.
A weak cold front will cross the state on Saturday and shift the winds to a more northwesterly direction. Temperatures will continue to be above seasonal normal. Air quality should remain a mix of Good and scattered low-end Moderate values.
A storm system will be developing over the Rockies on Sunday. This will pull warmer air back into Wisconsin on southerly winds for Sunday and Monday. Temperatures will again be well above normal. Air quality should be a mix of Good and Moderate for both days.
Below is the weather map for 6:00 a.m. Sunday morning.
Extended outlook: Rain will be likely with the passage of a cold front later Monday and Tuesday morning. Temperatures will remain mild through Wednesday. Air quality will, generally, be Good with a scattered Moderate possible.
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|