Pennsylvania bred - Southern by the grace of God answers,
"Depending on the balance of surface temperature and latent heat of the ground, the snow may stick or it may melt on contact. This is the technical answer.
The more practical answer is: people will lose their collective minds. Bread and milk will be completely gone from grocery store shelves, Kmart will sell out of snow chains (even though they will simply stay in the box as they sit in the car trunk until grandchildren find them years from now and ask Poppy what these are), and everyone driving in front of me will cautiously proceed at 7 mph—until I change lanes. Then they’ll gun it, spin out of control, and regain traction once they spin into my lane.
This….is what happens if it snows."
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