A significant winter storm is forecasted to impact Pennsylvania, particularly Philadelphia and Pittsburgh, beginning Sunday night and continuing into Monday. Snow accumulation of several inches is expected, prompting local school districts, including the Philadelphia School District, to cancel classes and transition to virtual learning for high schools. PennDOT has advised against travel as highway restrictions are set to take effect amidst the storm conditions. Residents are urged to prepare for inclement weather and to stay off the roads during the storm, which is predicted to bring 1-5 inches of snow to various regions, including Southern Pennsylvania and Chester County, where some areas might see up to 6 inches. As the storm approaches, officials and residents alike brace for challenging travel conditions and significant snowfall.