Here is the situation report for Danville at 5:30 pm Wednesday:Public Works crews spent the day spreading sand and, when temperatures rose above freezing, plowing in residential areas. Crews will remain on duty overnight to monitor conditions and respond to icy spots. On Thursday, crews will begin spreading brine in preparation for possible snowfall this weekend. The National Weather Service reports increasing confidence that a coastal low-pressure system will bring snow to the area. Dangerously cold overnight temperatures remain a main concern.