FORECAST SUMMARY:
FORECAST SUMMARY: Tuesday, January 18th, 2022, through Monday, January 24, 2022
PM-2.5: Tuesday, January 18th, will have Moderate PM-2.5 concentrations for southern Michigan. PM-2.5 concentrations for the remainder of the week are expected to be Good.
FORECAST DISCUSSION:
After multiple days of frigid temperatures throughout Michigan, temperatures have been on the increase due to southerly winds providing warmer air for the Great Lakes region. This is only short-lived as a Low-pressure system and associated cold front are expected to make their way through the region Wednesday, dropping temperatures essentially back to where they were this past weekend. Parts of northern Michigan will see some snow accumulation associated with the Low-pressure system with the Upper Peninsula receiving the most in the 4-6 inches range and the northern Lower Peninsula in the 1-3 inches range. Winds will increase as the Low-pressure approaches Michigan along with shifting from southerly flow to more NNW flow. The cold front and wind shift will clean out the PM-2.5 buildup that has been occurring in the southern portions of the state. This buildup of PM-2.5 is the reasoning for Moderate concentrations being forecasted for today, Tuesday. These Moderate concentrations may carry over into some hours of Wednesday, but overall, 24-hour concentrations are expected to be Good. Going into the weekend, temperatures somewhat rebound with the return of southerly wind flow. PM-2.5 concentrations remain Good for the weekend thanks to another Low-pressure system arriving Saturday into Sunday which will help push out any particulate buildup.
EXTENDED FORECAST:
Going into next week, concentrations look to remain Good. After the Low-pressure passes Sunday, High-pressure sets up to the south providing clear conditions. Forecast updated by Alec Kownacki: Tuesday, January 18th, 2022
Next forecast update: Monday, January 24, 2022