FORECAST SUMMARY:
Monday, November 26th, 2018 through Monday, December 3rd, 2018
PM-2.5: 24-hour Fine Particulate concentrations will be mostly Good, but a few periods of low-Moderates are possible.
FORECAST DISCUSSION:
The snow storm which brought decent snow accumulations across much of Lower Michigan will pull away from the state as Monday progresses. Lake effect snows will then develop later Monday, possible lasting into Wednesday, due to northwest winds behind the departing storm. Fine particulate levels through Wednesday will be in the Good range.
Quiet weather is anticipated Thursday as a high-pressure area moves in. A weak system passing later Thursday into Friday could trigger some scattered precipitation. Winds will be lighter Thursday into Friday; therefore, fine particulate may reach low Moderate across parts of southern Michigan.
EXTENDED FORECAST:
Extended models show a stronger storm system coming into play Saturday and Sunday. Current models show temperatures may be warm enough for rain, especially in Lower Michigan. Regardless of what type of precipitation we end up with, stronger winds with this system should keep fine particulate generally Good.