The cold snap will affect a large portion of the eastern U.S., with temperatures significantly below average. Major cities such as Chicago, Atlanta, and those along the I-95 corridor may experience freezing overnight conditions. Snowfall is expected in higher elevations and interior regions of the Northeast, which could lead to slippery roads and travel disruptions. Coastal areas may see rain instead of snow, depending on the storm's path. Residents in affected areas should prepare for colder-than-usual conditions and potential winter weather hazards.