"I've seen a few dust storms, but not like this. This thing was big. I mean, it was huge," said George Autobee, who was hurt in the Pueblo crash on Tuesday.

While active weather is set to wind down Wednesday after turbulent conditions the past two days, the impacts of the storms can still be felt.

A winter storm brought blowing snow that temporarily closed southbound Interstate 17 south of Flagstaff and prompted Arizona Snowbowl to shut down early Wednesday as conditions turned dangerous.

Officials said "adverse weather conditions" contributed to a deadly pileup of more than 30 vehicles in Colorado.

Adelaide will host MotoGP’s first-ever street race in 2027 after pinching the Australian motorcycle grand prix from long-time home Phillip Island.

Estimated construction costs have ranged from about $500 million to retain the status quo, on the one end, up to $3.2 billion to fill in the interstate and create a boulevard.