Hello how may I help you? I need some information. Yes. I can help you find information. What is the largest recorded cloud ever. What is the largest recorded cloud ever... Do you mean widest? yes i mean the widest. We have alternative parameters, such as tallest and heaviest. Would you be interested in these, too? yes, please. Okay. Give me a second. Tha's okay. The biggest cloud ever recored by height, width, and weight was discovered by astronomers 12 billion light years away.