Winter '22 / '23 - North and West of I-95: Why does snow in the Eastern US always seem fall to the West of I-95?

Are the snow-maker weather systems influenced by the fall line?

 

"This cold-to-warm transition zone is further increased by the presence of the Appalachian Mountains, which are found to the west of the I-95 corridor. This elevation increase starts at the fall line, the geological boundary between the low-level coastal plains and the foothills of the Piedmont.

 

"The fall line is the historical edge of this range mountains and is the point at which the elevation of the land starts increasing. In the short distance between Washington National Airport and Washington Dulles Airport, both near Washington DC, the elevation increases over 300 feet (90 meters)" 

 

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