The wind and the snow took control of Sioux Falls shortly before sundown, around the same time parts of the Interstate reopened to the west.
"We really fought visibility today (Monday), even more so than the snow. Parts of the time we had to pull plows in because it was just not safe," South Dakota Department of Transportation Director Darin Bergquist said.
"It's just pretty unbelievable how this (Monday) afternoon was about 60 degrees outside and now it's gone to probably about 20 degrees or so," South Dakota Highway Patrol trooper Angel Duran said.
The cold and windy weather moved in fast. White-out conditions took over Pierre when the system went through. For the people managing the roads, they hope the system moves out just as quickly.
"What hit out in Rapid City this morning is pretty well cleared out by now and by morning tomorrow (Tuesday) it will have completely left the state. It's not a multi-day battle for us," Bergquist said.
During the drastic change in temperatures, both ends of the weather spectrum were seen, including a Tornado Warning in Brookings County. One viewer even took photos of a funnel cloud forming right over her house.
"The thunder started and that's what caught my attention. So, I went to look outside and you could actually see the two different systems, the thunderheads to the north and sun shining to the south and they were just mixing and it was right there," Christina Westley said.
It may seem strange to have such a quick change, but it's an event trooper Duran is prepared for.
"As troopers, we have to be aware of the conditions of the weather, because we have to make sure that we address all the conditions that are out there," Duran said.
The warm, spring temperatures are gone for now, and it is a good reminder that this time year in KELOLAND, the weather is still full of surpises.
"It's just one of those things that you can never really understand weather to the fullest, so that's why we have to be ready for everything," Duran said.