It's push against shove as Jennifer Simpson, foreground, an employee at Prairie Pond Studio, 809 Mass., uses a broom to sweep snow from her sidewalk. Wednesday's snow accumulation totaled 1 inch, but a high of only 19 degrees made the day the coldest so far this season. The National Weather Service put out a wind chill advisory for Wednesday night in the area, predicting temperatures of 5 degrees below zero with a wind chill of minus 25 degrees. See today's forecast on page 8B.