SIOUX FALLS, S.D. (KELO) -- Many of us may have woke up to see frosted trees and shrubs this Christmas morning across KELOLAND. KELOLAND News producer Hannah Olsen took these photos Wednesday in Sioux Falls. Dense fog advisories continued over the much of the region until 8 p.m. Wednesday. The South Dakota State Patrol advised motorists to be aware of road conditions and possible changing conditions. Fog is impacting the eastern part of the state but in the northeastern area, there is drifting and blowing snow, according to the South Dakota Department of Transportation. Follow the weather on KELOLAND's weather app. Find out about road conditions with South Dakota 511.