Once the snow starts to come in, the temperature will essentially drop like a rock,” Fox Forecast Center Meteorologist Marissa Lautenbacher told The Post.

New York City prepares for severe winter conditions with heavy snowfall and a deep freeze expected this weekend. Temperatures could feel as cold as 15 degrees below zero with wind chills potentially reaching-15 degrees.

A winter storm will drop up to 4 inches of snow on the New York City area Sunday before extreme cold takes over the region next week.