FORECAST SUMMARY: Saturday, July 13th, 2024 Through sunday july 14th, 2024
OZONE:
Ozone concentrations are expected to be in the Moderate (Yellow AQI) to USG (Orange AQI) range.
PM-2.5:
PM-2.5 concentrations are expected to be in the Moderate (Yellow AQI) range.
FORECAST DISCUSSION:
There is currently an Air Quality Advisory in place for the counties listed above in west Michigan. After Sunday morning storms move off to the east, skies will open up, winds will shift to the southwest, and surface temperatures will increase into the upper 80s—prime conditions for Ozone development. Multiple rounds of rain and possible storms tomorrow, Monday, will help keep Ozone development at bay due to consistent cloud cover and rain that will clean out the airmass.
Numerous wildfire smoke models show an increase in Canadian wildfire smoke, PM-2.5, approaching the northern portions of the state, more specifically, the western upper peninsula tomorrow, Monday. Hourly PM-2.5 concentrations may exceed the USG threshold, but the 24-hour average for PM-2.5 is expected to remain below USG in the Moderate range. The wildfire smoke is expected to hang around the upper peninsula through the beginning of parts of next week, but only in the Moderate range in terms of concentrations
EXTENDED FORECAST:
Heat and humidity continue into tomorrow, Monday, with a front and associated cool down coming midweek.
Next Forecast update: Monday, July 15, 2024