The heavy band will likely fall within an hours-long window, paving the way for a difficult dangerous afternoon and evening commute.

Starting with timing, this snow should get going around the mid to late morning on Wednesday. By noon we should be seeing areas with moderate to heavy snow falling.

While heavy snow isn't expected, residents should be prepared for temperatures to stay in the teens during the day and falling to about zero at night. Tuesday night could be as cold as minus 4.