A fast-moving weather system is forecast to bring another around of accumulating snow to portions of the Mid Atlantic Friday into Saturday, prompting the National Weather Service to issue Winter Weather Advisories for portions of New Jersey, Pennsylvania, Maryland, and Delaware. Winter Storm Watches have been posted for portions of West Virginia, Maryland, and Virginia where heavier snow amounts are expected.
An area of low pressure will develop over the southern Plains on Friday and approach the southern Appalachians by Friday evening. The area of low pressure will track slightly north of due east tracking offshore the Carolina/Virginia coast by Saturday morning. The system will be accompanied by plentiful of energy aloft with sufficient moisture at low-levels across the Mid Atlantic area. High pressure will be stationed over southern Canada, so with a subtle northerly flow, unlike for the last weather system to impact the region, temperatures will be below freezing across most areas on Friday night. As such, forecast atmospheric profiles support a widespread light snowfall event across the region.