FORECAST SUMMARY:

Monday, March 23rd, 2020 through Monday, March 30th, 2020

PM-2.5:  24-hour average Fine Particulate concentrations will a mixture of Good and Low Moderate.

FORECAST DISCUSSION

High pressure will drift across the region during Monday following an early Spring snowfall Sunday night.  That high pressure will drift eastward through Tuesday and set up east winds across the state.  Normally, that would set up a forecast for Low Moderates east of the Southeast Michigan but the dynamics are certainly changed. 

A center of low pressure will pass across Kentucky early Wednesday reinforcing easterly winds.  A ridge of surface high pressure will slide across the Midwest during Wednesday.  This will briefly switch the winds to the northwest before the next approaching front yields southwest winds and warming temperatures by early Thursday.  The warm front associated with that system will drop south during Friday providing northeast and eastly winds through midday Sunday.  The cold front portion of that system passes later Sunday and the region will come under northwest winds.

EXTENDED FORECAST:

Air Quality should be mostly Good going into the next work week.

Forecast updated by Jim Haywood: Monday, March 23rd, 2020
Next forecast update: Monday, March 30th, 2020