FORECAST SUMMARY: thursday, november 9, 2023, through monday, november 13, 2023

Ozone: Ozone season is now over and will start forecasting again in the spring of 2024.

PM-2.5:  24-hour average Fine Particulate levels will range mostly Good, with some Moderates mostly in southern locations early Monday and/or Wednesday.

FORECAST DISCUSSION:

Dry air is quickly moving in Thursday behind the departing system, which brought a wet midweek to the state. Aside from a small chance for lake effect precipitation in west Michigan Friday night, dry conditions prevail throughout the forecast period. The dry weather can be attributed to high pressure sliding in from the west during the coming weekend. Gusty winds with a westerly component can be expected Thursday and Friday. Wind speeds decrease Saturday as the high moves overhead, but winds pick up again from the southwest early next week as the center of the high moves east of the state.

Air quality over the past few days has been ranging Good statewide, and stronger westerly winds should keep Good levels Thursday and Friday. Lower wind speeds Saturday into Sunday may allow for localized buildup of fine particulate levels, especially during the morning hours. Daily averages of fine particulate may reach low Moderate at southern locations; otherwise, Good readings continue.

EXTENDED FORECAST:

Extended models show a system passing north of Lake Superior on Monday. This system reinforces stronger winds that should help keep fine particulate mostly Good as we move into the new workweek.

Next Forecast Update: Monday, November 13, 2023