FORECAST SUMMARY: Friday, September 8, 2023, through Monday, September 11, 2023

Ozone: 8-hour average ozone concentrations are expected to be Good.

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

FORECAST DISCUSSION: The cloudy, drab weather that has been with us since midweek will finally start to give way as the current slow moving low-pressure system finally begins exiting the region.  The good news is that Air Quality is currently Good with all pollutant levels very low.

Low level moisture will persist through much of Friday providing clouds and the occasional sprinkle.  Light north to northeast wind will prevail into Saturday as Canadian high pressure builds into the western Great Lakes.  Incoming dryer air will chase away the cloud cover providing sunny skies through Saturday and Sunday with cool temperatures in the lower 70’s.

The smoke we were watching over the Plaines states during the week remained in that region and never threatened Michigan.  Computer models have that smoke breaking up over the next few days and we may see some light residuals of that smoke but no worse than Low Moderate.

The next low pressure is currently predicted to arrive during Monday bring a good chance of rain and cooler temperatures during the first half of next week.

EXTENDED FORECAST: Air Quality should be generally Good to start the next work week.

Next Forecast Update: Monday, September 11, 2023