Why is the snow brown in Minnesota?

A major winter storm hit parts of the US this week and residents of Minnesota have noticed that rather than blanketing the state in bright white powder, the snow was marbled with patches of brown and orange. Chris O’Brien, a meteorologist at the US National Weather Service, reported the discoloration is caused by dust particles carried on strong winds from Texas. The wind “picked up a lot of dust and got it entrained into the circulation of this storm system and pulled it all the way up into Minnesota where it fell with the precipitation,” he said.