It was inspired by the sentence containing those famous opening words "It was a dark and stormy night..."
The full sentence is: "It was a dark and stormy night; the rain fell in torrents — except at occasional intervals, when it was checked by a violent gust of wind which swept up the streets (for it is in
London that our scene lies), rattling along the housetops, and fiercely agitating the scanty flame of the lamps that struggled against the darkness."
People have taken the reins on this and run with them. I think it's great!