FORECAST SUMMARY: Friday, August 11th, 2023, through Monday, August 14th, 2023
PM-2.5: PM-2.5 concentrations are expected to be in the Good to Moderate range.
OZONE: Ozone concentrations are expected to be in the Good to Moderate range.
FORECAST DISCUSSION:
The majority of Michigan wakes up to a beautiful morning on this Friday. However, it is short-lived as a weather system traverses the region this afternoon bringing cooler temperatures and rainy skies. Indeed, the work week ends, as the work week began—dreary. Although, as we get into Saturday morning, the precipitation clears to the east and clear skies return with surface temperatures in the upper-70s to low-80s, with WNW winds cooling down the temperatures. We are in this airflow until Monday when winds shift to more southerly flow due to yet another approaching frontal boundary.
In terms of air quality, due to the rain we are expecting later this afternoon, I do not expect Ozone to be an issue today and through the weekend. With winds shifting to more northerly Saturday and Sunday, and with temperatures barely reaching the 80s, Ozone will not have the proper ingredients to develop. Upper-level temperatures will be in the mid-to-upper teens Celsius however, but I do not expect those upper-level temperatures to initiate any USG Ozone development. For PM-2.5, there will be regional smoke hanging around through the weekend due to the ongoing Canadian wildfires. I do not expect PM-2.5 concentrations to reach anything higher than Moderate.
EXTENDED FORECAST:
Another system is expected to come through on Monday before exiting the area on Tuesday. This will help keep overall air quality Good.
Next Forecast update: Monday, August 14th, 2023. Forecast updated by Alec Knowacki.