A typical cumulus cloud weighs 1.1 million lbs
Cumulus clouds are the white fluffy ones you can see on a nice, bright day. A typical cumulus is around 1km long and 1 km high. They have ½ gram of water per cubic meter which means the whole cloud contains 500 million grams of water which is 1.1 million lbs! To try to imagine this enormous amount of weight, picture 100 elephants!