FORECAST SUMMARY: Monday February 10th, 2025, through Friday February 14th, 2025
PM-2.5:
PM-2.5 concentrations are expected to be in the Good to low-Moderate range.
FORECAST DISCUSSION:
Sporadic sunshine is waking Michiganders up this February morning as surface temperatures hang around the teens to low twenties this morning and for much of today, Monday. We start off this work week relatively quiet with no major systems impacting us today or tomorrow, Tuesday, but an abrupt change is on the horizon with the next snowmaker coming on Wednesday. A Low-pressure system is expected to move across the Great Lakes region Wednesday evening into Thursday with most of the lower peninsula seeing accumulating snow. Southern Michigan and into mid-Michigan will see the highest totals with snow tapering off come Thursday morning. Once the Low-pressure leaves the area, a High-pressure system sets up to the south over Indiana and Ohio which will provide calm conditions on Friday to wrap up the work week.
Clearing skies and southerly flow will potentially increase PM-2.5 concentrations today and into Tuesday. These increases will predominately be in and around the metro areas of Detroit and Grand Rapids and mostly in the morning time. Come Wednesday evening, however, concentrations will be moved out as the impending Low-pressure and frontal boundary clean out the low-level atmosphere. The High-pressure system on Friday may cause an increase in PM-2.5 concentrations due to calm conditions and slight melting of the fresh snowpack we will be receiving from the aforementioned snow system. Any PM-2.5 increases will only slightly eclipse the Moderate threshold with most concentrations in the Good to low-Moderate range.
EXTENDED FORECAST:
Another snow system looks to impact the Great Lakes on Saturday with snow totals still being calculated. Air quality will remain in the Good to low-Moderate range.
Next Forecast update: Friday February 14th, 2025