There is nothing that embodies the idea of "terrible beauty" more than an approaching sandstorm. Here is what these awe-inspiring forces of nature look like, right before they consume the ocean or landscape in blinding clouds.
An absolutely massive sandstorm rolled through Kuwait last Friday, blotting out the sun and transforming early evening into night immediately. Here's eyewitness footage from motorists enveloped by the the roiling sand. You'll want to see this.