9/12/2022 Forecast Update

FORECAST SUMMARY: Monday September 12, 2022, through Friday September 16, 2022

 

OZONE: 8-hour average Ozone concentrations are expected to be Good with a chance of Moderate by the weekend.

 

PM-2.5:  24-hour average Fine Particulate concentrations are expected to be stay mostly Good to Low Moderate.

 

FORECAST DISCUSSION:

An occluded front has been lingering over the Lake Michigan area bringing Sunday showers and Monday cloudiness.  We will continue to see lingering clouds and shower potential through Tuesday when this system finally departs the area to the northeast.

The remainder of the work week looks very similar to last week with predominantly clear skies, gradually warming days, and cool nights.  Air Quality should remain Good for the remainder of the work week although the warming days will cause a gradual creep in ozone values, each day.

 By the end of the work week and the weekend, winds will be predominantly southwest.  As such, it is possible that ozone concentrations could creep into the Moderate range during the weekend.  While it is unusual to see USG conditions this time of year, it is possible as demonstrated by Wisconsin as a couple of their monitors crept over during the last weekend.  Therefore, it would be wise to take another look at the potential weekend values, Friday morning, and update this forecast.

 

EXTENDED FORECAST:

Air Quality should be mostly Good to Moderate to begin the next work week.

 

Forecast updated by Jim Haywood: Monday, September 12, 2022. Next forecast update: Friday, September 16, 2022