FORECAST SUMMARY: Monday October 30th, 2023 through Friday November 3rd, 2023
Ozone: Ozone concentrations are expected to be in the Good range.
PM-2.5: PM-2.5 concentrations are expected to be in the Good to low-Moderate range.
FORECAST DISCUSSION:
As October comes to a close this week, Mother Nature will be in the spirit of Halloween by providing much of Michigan with a chance of seeing the ever-dreaded, and scary “S-word”—snow. A Low-pressure system and associated cold front will eclipse our state tomorrow, Tuesday, and make its way east overnight into Wednesday. This will drop, and keep, high temperatures in the 30s for all of Michigan for Tuesday and into Wednesday. Wednesday will have northerly flow which will be aiding in keeping temperatures cool, along with starting the lake-effect snow machine Michigan sees around this time every year. Michiganders along the Lake Superior and Lake Michigan shorelines should expect spotty lake-effect snow essentially all week, but any snow showers are expected to remain as flurries, or dustings, at best. Winds look to shift as we get into the latter half of the week, with a cold front-turning-into-warm front-scenario occurring Thursday into Friday, raising our high temperatures back into the low-to-mid 40s. The warming trend continues into the weekend with temperatures creeping back into the 50s in some areas.
For air quality, Ozone will be in the Good range as the Ozone season comes to a close and we will soon stop forecasting Ozone as we get deeper into Fall and into Winter. For PM-2.5, overall concentrations will be in the Good range throughout the week, but there are chances for atmospheric inversions throughout the week as well. These inversions will mainly occur in the morning hours when surface winds are light and will dissipate as the days carry on and winds increase.
EXTENDED FORECAST:
As stated earlier, a weekend warmup is on the horizon for much of Michigan, and overall air quality is expected to remain Good.
Next Forecast Update: Friday, November 3, 2023