A quick-moving disturbance originating from the Northwest U.S. will sweep through the Northern Tier of the US this Monday, bringing a light to moderate swath of snow to a large area. This Monday, snow will move through, lasting up to ten hours in each location affected, from the interior Northwest and Northern Plains, including South Dakota and Nebraska, then through the Midwest. That includes all of Iowa into southern Wisconsin and northern Illinois, so Chicago will have to deal with snow during the evening hours.
Overnight, the light to moderate snow will move through portions of the Great Lakes region and the interior Northeast as the storm weakens and the intensity tapers off. Therefore, little to no accumulation is expected in the Northeast sector.
Snowfall totals will be heaviest in the Northern Plains and Midwest. This is where some towns may receive as much as half a foot of snow.