High winds are whipping up dust storms across western and northern Victoria. On the Sunraysia Highway near St Arnaud, four cars and a semi trailer have collided in a heavy storm, but police say no-one was injured. Donald business owner, John McConville, says the storms turned the sky orange. "We haven't seen one like this for a while. We probably all recall the 1982 drought when the dust descended on Melbourne and scared everyone down there," he said.