The area National Weather Service Offices put out a product that displays potential snowfall for an upcoming event. Often times it is these forecasts that are included in weather apps or some local TV broadcasts. It is one of many resources to use.
Here is a look at the official forecast for snow, followed by the high and low end, and ice potential when available. These come from the National Weather Service Offices in Sterling, VA, State College PA, and Mount Holly , NJ.
The maps here include snow or ice forecast for Maryland, Pennsylvania, West Virginia, Virginia, Delaware, and New Jersey.
From The National Weather Service Baltimore/Washington in Sterling, VA.
From The National Weather Service Baltimore/Washington in Sterling, VA.
NOTE: This is ONLY For 24 Hours
Less Than the Maryland maps above
From The National Weather Service Office Phildelphia located in Mount Holly, NJ
From the National Weather Service Office in State College, PA
From The National Weather Service Office Phildelphia located in Mount Holly, NJ