(8:00PM - 12/10/19) A weak and fast moving disturbance will bring a period of light snow to portions of Northern and Central Illinois, very late tonight through midday Wednesday.
An area of light snow will spread into Northwest Illinois very late tonight, between 2-3AM. this area of light snow will then spread across portions of Northern and Central Illinois through Wednesday morning, slowly ending from west to east across these areas during the mid morning to midday time-frame. Minor snowfall accumulation of a dusting to 1" is possible across portions of Northern and Central Illinois. Locally higher amounts of 1-2" are possible towards the Quad Cities area.
Below is the TAM snowfall forecast for this event.