Hello how may I help you? Hi, I have a question. Sure, what is your question? What is the biggest recorded cloud of all time? Do you mean tallest, widest, or heaviest? The tallest. Do you mean thunder, hurricane, or tornado cloud? Tornado cloud. The tallest tornado cloud is 10,000 feet tall Wow, thank you. You're welcome, anything else I can help you with today? No that is it, thank you.