Lake-effect snow moved eastward off the Great Lakes across the northern United States on Thursday, January 2, bringing snowfall to New York, Pennsylvania, and other states.Satellite imagery released by the Cooperative Institute for Research in the Atmosphere at Colorado State University (CSU/CIRA) shows lake-effect snow cascading off the Great Lakes and gravity wave clouds rolling over the Appalachian Mountains in the northern US.According to the National Weather Service, lake-effect snow is expected to continue in the Great Lakes region until Saturday, bringing snow accumulations between two to four feet near Lake Ontario and Lake Erie. Credit: CSU/CIRA & NOAA via Storyful