Winter storm warnings were in place for 26 states across the U.S. from the National Weather Service (NWS) early Friday, with up to 14 inches of snow forecast for some parts of the country. Snow can cause travel disruptions and create hazardous driving conditions.

The first wave of snow began early Sunday and conditions worsened throughout the day into the evening as snow was replaced by freezing rain. The ice-and-sleety mix fell on top of the morning snow, snarling traffic, closing Kentucky’s three major airports and closing dozens of churches, restaurants and stores.