Dust Storm

For those of you who have never seen a dust storm, here's a photo from the morning Arizona Republic of the cloud that rolled through parts of Phoenix yesterday. I've been fortunate enough to have never been caught on the road in one like this. These result in bad accidents, as people lose control of their vehicles.
One time many years ago, a bunch of us were driving back to Stillwater (my college days) when a wall of dust loomed in front of us. We drove into it to find it was only about five feet thick, so were out of it before we knew it.