Who is the Peanuts character that has his own personal rain cloud?

It was a dust cloud, not a rain cloud, and his name was Pig Pen. Yeah - the rain cloud was over Schleprock, in The Flintstones. There was also a character in the "Li'l Abner" comic strip by Al Capp who was named Joe Btfsplk. He was followed by a rain cloud everywhere he went.