After bringing feet of snow to the Sierra, a strong trough will continue to push eastward through the early work week with disruptive snow and ice making potential.  This system will impact the Midwest Saturday into Sunday before moving to the east where it could bring heavy snow and some ice to the Appalachians and Mid-Atlantic before moving up the coast.

As the first low stalls and weakens, a second low is expected to develop off the coast of North Carolina and Virginia. This low will then be able to tap into moisture from the Atlantic while colder air remains in place inland, leading to the potential for good snow making, as well as a wintry mix.

Winter Storm Watches have already been issued up the I-95 corridor for several major metropolitan areas, with additional alerts likely to come.

Forecast

Snow is expected to spread across Virginia toward the coast on Sunday (read about the Mid-Atlantic impacts here) as the new surface low slowly moves up the coast. By Monday morning, snow potential will shift north across Pennsylvania to Rhode Island.

Heavy snow potential develops throughout the day with higher snowfall rates expected by Monday afternoon and Monday evening. This heavy stripe of snow will likely continue to fall into Tuesday morning while shifting slightly to the north. Additional wrap around snow could also continue to the south into the Mid-Atlantic.

It will take a full day or two, but the surface low looks to finally exit the region by late Tuesday, with lingering snow showers Tuesday night across the mountains of New England.

The I-95 corridor will likely see heavy snow from Baltimore through Boston, with 6 inches or more likely for many of those locations. 8-12 inches of snow will be possible from Northern Delaware through Southeastern Pennsylvania, with additional bullseyes from New Jersey through New York City and into the Worcester Hills in Massachusetts.  The potential for sleet and freezing rain is also in the forecast, which will have an impact on snow totals.

Nor’easters are notoriously difficult to forecast. Slight changes in the expected track of the low could shift these corridors of potentially heavy snow before the event. Stay with WeatherNation for the latest.