A fast-moving storm blanketed Naperville in at least 5.5 inches of snow as of Friday morning, causing school, city and facility closures to mount ahead of more inclement weather expected throughout the day. As a significant weather system set in across the Chicago area for the second time this week, snow and wind began hitting the Naperville area about 3 a.m., National Weather Service .
The Attorney General's Office announced Friday that it will be monitoring natural gas supply and marketing activity during the frigid weather expected over the next few days.