FORECAST SUMMARY:
Monday, April 12th, 2021 through Monday, April 19th, 2021
PM-2.5: 24-hour average Fine Particulate concentrations will be mostly Good through the entirety of the forecast period.
FORECAST DISCUSSION
I am expecting mostly Good Air Quality, under favorably cool winds, throughout the forecast period.
As of Monday morning, what we call a cut off, or closed low is currently positioned over Lake Erie. The nature of a closed low is such that it spins while being cut off from the general atmospheric circulation and tends to move slowly. As it sits there and spins with little encouragement to move, it will provide clouds and scattered rain showers over our area. Westerly winds at the surface will reenforce Good conditions.
It will take the next upper level low pressure cell to nudge that Monday system on to the east. By Wednesday, the new low pressure system will be over Michigan and I expect that to be the coolest day of the week along with scattered shower activity.
The rest of the forecast period should feature gradual warming temperatures and dry weather. Persistent northwest winds will be clean and Air Quality will be Good!
EXTENDED FORECAST:
Air Quality should be mostly Good going into the next work week.