Hello how may I help you? hey Hello, how may I help you today? what is the biggest cloud recorded? Are you looking for the tallest cloud? The widest cloud? The heaviest? just a cloud/ widest Okay great, are you interested in a specific type of cloud or just any cloud? any cloud Would you like clouds only in the US or anywhere in the world? world The widest cloud ever in the world was named Jeff and was 3849 miles wide! Can I help you with anything else? thats all thanks Have a great day.