FORECAST SUMMARY: Friday, March 28, 2025, through Monday, March 31, 2025
PM-2.5: 24-hour average Fine Particulate concentrations are expected to be a mixture of Good (AQI Green) to Moderate (AQI Yellow) through Sunday, then mostly Good (AQI Green) during Monday.
FORECAST DISCUSSION
A warm front will push northward through the state during Friday. That front will eventually stall out leaving most of the lower half of the Lower Peninsula in the warm air sector of the associated low-pressure system. That will push temperatures in the warm air sector into the mid-60’s, for most of the weekend. The front will essentially become a stationary front and will probably oscillate a little bit southward by the end of the weekend, but the lower half of the state will stay warm through Sunday.
Clouds and scattered precipitation will be with us through the weekend, although no severe weather or hard rains are expected. Our experience with stalled fronts is that it can trap particulates near the ground. Since we are starting with a relatively clean base, the region should not expect anything worse than Moderate in the more populated areas.
The low-pressure system will eventually clear the area, Sunday night, and return us to cooler, northerly wind flow, cooler temperatures, and Good Air Quality.
EXTENDED FORECAST:
Air Quality is expected to be mostly Good going into the next work week.
Next forecast update: Monday, March 31, 2025