FORECAST SUMMARY: Sunday July 10th, 2022, through Monday July 11th, 2022

OZONE: Ozone concentrations are expected to be in the Moderate to USG range for some areas.

PM-2.5: PM-2.5 concentrations are expected to range from Good to low-Moderate. 

FORECAST DISCUSSION:

Today, Sunday, continues the trend of this weekend with sunny skies and warm temperatures. This trend somewhat comes to an end tomorrow as winds shift to the southwest and surface temperatures increase slightly. Dewpoint temperatures hang around the low-60s F range for most of the day. Upper-level temperatures for southern Michigan are predicted to be in the upper-teens C with upper-level winds being mostly westerly.

It is for these reasons an Air Quality Action Day is being called for the counties listed above. USG-level Ozone is expected to impact Lake Michigan lakeshore counties due to warm temperatures, both surface and upper-level, and southwest winds. Southeast Michigan will be impacted as well by another Ozone plume due to the warming temperatures and southwest winds. The amount of clouds will play a big role in the development of Ozone tomorrow. Most models are showing a good amount of clouds for the majority of the state tomorrow afternoon. However, some Ozone is expected to develop with morning and early afternoon sunlight. 

EXTENDED FORECAST:

A cold front is expected to impact Michigan going into Tuesday morning which will drop surface temperatures down to the mid-70s F. This front will help clean out any concentrations buildup and result in Good air quality.

Forecast updated by: Alec Kownacki, Sunday July 10th, 2022
Next Forecast update: Monday July 11th, 2022