FORECAST SUMMARY: Monday December 11th, 2023, through Friday December 15th, 2023
PM-2.5: PM-2.5 concentrations are expected to be in the Good to low-Moderate range.
FORECAST DISCUSSION: As we approach mid-December, surface temperatures hang around seasonal norms with the latest outlook for the remainder of the month showing above normal temperatures. Along with warmer-than-normal temperatures, Michigan is expected to be relatively drier as well.
Today, Monday, will see a continuation of how the weekend ended with surface temperatures ranging from the low to upper 30s. It’ll be breezy throughout the day with winds staying rather consistent throughout the day. Tomorrow is more of the same with an impending weak cold front expected to traverse Michigan Tuesday into Wednesday. Although there will be a cold frontal passage, temperatures stay the same and actually increase as we approach the latter half of the week. If anything, the cold front opens the door for a High-pressure system to set up just to our south on the Indiana/Ohio border. This will provide sunshine for the latter half of the work week which will carry into the weekend.
For air quality, the beginning half of the week will see Good PM-2.5 concentrations, especially with the steady breezy conditions. As we get closer to the weekend, expect PM-2.5 concentrations to get into the Moderate range due warmer surface temperatures and light winds. Surface-level inversions can be expected essentially all week, and the aforementioned Moderate conditions should be expected throughout the week, but more so towards and into the weekend.
EXTENDED FORECAST:
As stated above, a warming trend continues into the weekend which will provide unseasonably warm temperatures and a good amount of sunshine.
Next Forecast Update: Friday, December 15, 2023