A quick-moving clipper system coated much of northern Illinois with several inches of snow early Sunday, creating hazardous travel conditions that are expected to linger into the late morning. A Winter Weather Advisory was in effect for areas along and north of Interstate 80, where the steadiest snowfall fell before daybreak.

Road cameras across the region showed snow-covered pavement and reduced visibility from Rockford to the Fox Valley. The Illinois Tollway and IDOT warned drivers to expect slick spots, drifting snow in open areas and slow-going conditions on major routes.

Some of the heaviest totals came from northwest Illinois, where Lanark reported 6.5 inches of snow as of 7 a.m. New Milford saw 6.2 inches, while 5.7 inches fell at Rockford Airport. Savanna picked up 5.3 inches.

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