Hello how may I help you? I need some information Sure, what is your question? what is the biggest recorded cloud of all time? Do you mean the tallest cloud? Or the widest? I'm not sure. I just want to know how big a cloud could be The Cumulus clouds are the biggest. How big can they get? Do you mean the heaviest type of cloud? Okay, what's the heaviest? Cumulus clouds. thanks for the help You are welcome.