Hello how may I help you? can you help me with some information please? Sure, what is your question? I need to know what the biggest recorded cloud of all time was Cumulus clouds are well known for being the biggest type of cloud. Okay, that's cool, but how big was the biggest cloud? I'm trying to win a bet. Can you specify big? Do you mean tallest or widest or heaviest? Ummmm.... I think tallest Would you like to know the brightest cloud of all time? No, that doesn't help at all! I am sorry, I only know the brightest cloud of all time. Well, thanks for nothing I guess...