The wintry mix was forecast to turn into rain by this morning, with today's high expected in the upper 40s.
Officials in Edgefield, Barnwell, McCormick and Saluda counties decided Wednesday afternoon to delay their classes today by two hours.
Pam Tucker, Columbia County's emergency services director, said Wednesday night that the storm had not caused icing on tree limbs or major problems for motorists in her county.
"We've only had one reported minor accident," she said, referring to a wreck on North Belair Road near Wesley United Methodist Church. "All is well. Everyone is just enjoying looking at the snow."
As of 8 p.m. Wednesday, emergency workers reported two weather-related wrecks in Richmond County and one in Burke County involving a vehicle that overturned on an overpass.
Some accumulation of snow and five wrecks with no injuries occurred in McDuffie County on Wednesday night, dispatchers said. A Cobbham Road overpass at Interstate 20 had also briefly iced over.
Counties north of I-20 and east of Interstate 75 were expected to have the greatest potential for ice. Officials advised drivers planning to head toward Atlanta today to wait for warmer weather. Atlanta temperatures were not expected to rise above freezing until about 11 a.m.
Travelers to Columbia should see wet weather, with most of the icy conditions expected farther north, said Jim Kilmer, of the National Weather Service in West Columbia, S.C.
Mike Keene, area engineer for the Georgia Department of Transportation, suggested that people check for up-to-date traffic and weather conditions on the DOT's Navigator Web site, www.georgia-navigator.com.
Staff Writers Adam Folk and Julia Sellers contributed to this article.
Reach Timothy Cox at (706) 823-3217 or firstname.lastname@example.org.