A single cumulus cloud can weigh over 500,000 kilograms.

Wacky WorldWeather

A typical fair-weather cumulus cloud (measuring approximately one cubic kilometer in volume) contains roughly 500 million grams of liquid water droplets. That equates to 500 metric tonnes—or over 1.1 million pounds—the weight of approximately 100 fully grown African elephants. The cloud remains floating high in the sky because that vast mass is spread across trillions of microscopic water droplets (each only 10 to 20 micrometers wide) buoyed by rising warm thermal updrafts.

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