South Texas, including San Antonio and the Hill Country, is bracing for a significant winter storm as an Arctic blast brings freezing temperatures, icy conditions, and widespread school closures. An ice storm warning has been issued, with authorities predicting near impossible travel conditions starting late Saturday. City officials and utility providers are working to prepare for the inclement weather, urging residents to stay off the roads and to conserve energy during peak hours. Shelters and warming centers are being opened to assist those in need as multiple events and attractions in the region announce cancellations due to the storm. The National Weather Service warns that freezing rain is expected to begin this evening, prompting local governments to extend emergency operations and offer additional support for residents and travelers.