FORECAST SUMMARY: Monday, August 14, 2023, through Friday, August 18, 2023

PM-2.5: 24-hour average Fine Particulate concentrations are also expected to be Good to Moderate.

OZONE: 8-hour average ozone concentrations are expected to be Good with scattered Low Moderate.

FORECAST DISCUSSION:

A slow-moving low-pressure system will approach and pass through Michigan later Monday and into Monday night.  There is a good chance for significant precipitation as this system passes through and Air Quality is expected to be Good.  Some residual showers during Tuesday and a drying out during Wednesday with continued Good Air Quality are expected.

We will get into a southwesterly air flow pattern late Wednesday and into Thursday as another front approaches and passes through the region.  This will provide another precipitation event however probably not as widespread or heavy as anticipated for late Monday. 

Air Quality should remain mostly Good with scattered Low Moderates for the duration of the work week.  The long-range forecast has the weekend warming up with daily highs climbing back into the mid to upper 80’s.  While the days are getting noticeably shorter, we are still in the midst of ozone season and this forecast will be updated on Friday to provide the weekend outlook. 

Wildfires is still widespread in Canada.  Fortunately, projected wind patterns are not showing any significant amount traveling over the Midwest during this forecast period.

EXTENDED FORECAST:

Air Quality should be generally Good to start the weekend, but ozone concentrations are likely to increase during the course of the weekend.

Next Forecast update: Friday, August 18th, 2023. Forecast updated by Jim Haywood