FORECAST SUMMARY: Thursday September 8, 2022, through Monday September 12, 2022

OZONE: 8-hour average Ozone concentrations are expected to be Good with a chance of Moderate during Friday.

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

FORECAST DISCUSSION:

High pressure has settled over Michigan providing clear skies, low winds, and chilly nights which should persist through Saturday.  As the high pressure slides eastward during Thursday, light northerly winds will slowly begin veering southwesterly causing a slight uptick in ozone values during Friday.  While I expect to see a creep in Friday ozone, I do not expect anything worse than Moderate because of shorter days and cooler nights.

Saturday could be a repeat of Friday except for an approaching low pressure system which should start bringing in clouds Saturday afternoon.  This slow moving system will impact our weather for the remainder of the weekend with the added potential for heavy rain and cooler temperatures during Monday.  Air Quality during this time will be Good.

EXTENDED FORECAST:

Air Quality should be mostly Good to begin the next work week.

Forecast updated by Jim Haywood: Thursday, September 8, 2022. Next forecast update: Monday, September 12, 2022