FORECAST SUMMARY: Monday, June 20th, 2022, through Tuesday, June 21st, 2022

OZONE: Ozone concentrations are expected to be in the Moderate range with USG-levels in West Michigan.

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

…AIR QUALITY ACTION DAY ADVISORY FOR MONDAY, JUNE 20TH AND TUESDAY, JUNE 21ST FOR THE FOLLOWING COUNTIES…

IN WEST MICHIGAN:

ALLEGAN…BERRIEN…CASS… KENT… MASON…MUSKEGON…OCEANA…OTTAWA… VAN BUREN COUNTIES

FORECAST DISCUSSION:

Along with an increase in surface temperatures, winds shift to southwesterly flow Monday morning and stay that way through Tuesday. These winds, along with a warm front, will bring warmer temperatures Tuesday with highs reaching the mid-90s F.

In terms of air quality, West Michigan counties are expected to reach USG-level Ozone concentrations for Monday and Tuesday. Surface winds coming from the southwest, mostly clear skies, surface temperatures in the upper-80s F to mid-90s F, and upper-level temperatures hovering around the low-20s C are all reasons behind the forecasted Ozone development.

Monday update: As of Monday, June 20th, the forecast looks to remain the same from Sunday morning. West Michigan is expected to receive USG-level Ozone concentrations as high surface temperatures return along with relatively clear skies and southwest winds. There was uncertainty Sunday morning about how southeast Michigan would fare with Ozone on Tuesday. As the day progresses on Tuesday, winds look to shift to more westerly flow which should help hinder high Ozone concentrations to form in that area.

PM-2.5 concentrations look to remain in the Good to Moderate range.

EXTENDED FORECAST:

The warm temperatures and sunny skies look to stick around for the next couple of days. Air quality will be monitored throughout the week.

Forecast updated by: Alec Kownacki, Monday, June 20th, 2022.
Next Forecast update: Tuesday, June 21st, 2022.