CHICAGO -- Snow will spread east across the Chicago area Sunday, beginning in westernmost portions before sunrise – covering the entire area by midday. The snowfall will be steady with perhaps an early-evening letup, picking up again before midnight Sunday night, then gradually ending from west to east by Monday morning.
The Chicago National Weather Service Forecast Office has issued a Winter Weather Advisory for 3 to 6-inches of snow from 6 a.m. to midnight Sunday in westernmost portions of the Chicago area – this includes Winnebago, Boone, Ogle, Lee, DeKalb, Kendall, LaSalle and Grundy counties. The remainder of the Chicago area should measure snowfall in the 2 to 4-inch range.
Following the track of the snow-triggering low pressure system, Winter Weather Advisories of heavy snow are in effect from the Dakotas south and east through portions of Minnesota and Iowa, southwest Wisconsin, most of Illinois, a good part of Missouri into southern Indiana and Kentucky.