Dust/sandstorm!

My first dust/sandstorm! And I guess it is one of the gnarliest ones in years. It sort of came out of nowhere. I was in a meeting with two students in my office and looked out the window to see this wall of dust/sand (is it dust or is it sand?) starting to swallow us up. This was at around 12:00 p.m. or so...and, while not as bad at this very instance, you still cannot see much of anything at nearly 9:30 p.m. (no moon, no cranes, etc.) and going outside is a stupid idea because the sand/dust gets in your eyes, nose and mouth and it coats you and all your stuff. And it somehow finds its way into buildings, including the smell, even when you try to minimize the opening and closing of doors. Here is a picture of it around 1:30 p.m:


And here is its theme song: http://www.ilike.com/artist/Darude/track/Sandstorm