Hello how may I help you? Hi! How may I help? Could you find out what the biggest cloud that was ever recorded was? To clarify. Did you mean the tallest, widest or the heaviest? The widest. okay checking cumulonimbus clouds are the widest clouds That's interesting. What is the tallest? It's the cumulonimbus as well. What about the heaviest? It's the cumulonimbus also. They span across from low to high atmoshpere. atmosphere. Great! Thank you! Great!