Hello how may I help you? need to find out some info from the internet I would love to help you. What would you like to know? please tell me the largest recorded cloud of all time Do you mean tallest, widest or heaviest? Tallest please Do you mean cumulus, nimbus or stratus? Nimbus?! Does it have to be a natural cloud or do you want to include gas clouds? Does it matter? but yes, gas clouds I guess Does country over which it's hovering important?