Due to the continuing threat of winter weather, Dickson County schools will be closed Tuesday. School officials first announced Monday night that schools would open two hours late, but just after 8 am Tuesday, Director Dr. Danny Weeks made the decision to go ahead and close schools as a new winter weather advisory includes the possibility of more sleet and freezing rain about midday today. Director of Student Services Steve Sorrells said Tuesday morning that the decision was made in light of the forecast of more potentially hazardous weather conditions. Charlotte officials had said the sewer problem that caused Charlotte schools to remain closed Monday had been repaired and the schools were ready to reopen Tuesday. A winter weather advisory has been issued for noon Tuesday through 8 am Wednesday. The forecast calls for a possible wintry mix that could include light freezing rain with a high of 37 today and climbing into the mid-40s with partly cloudy skies Wednesday. Tennessee Department of Transportation began spreading a brine mixture on highways and Interstate 40 in Middle Tennessee Monday and the Dickson County Highway Department and Dickson Public Works Department both have salt trucks on standby if road conditions decline.