Formation of a Lightning Bolt - Stage 1

Cumulonimbus clouds are towering clouds that "spread out" on the top. They occur between 1,600 and 60,000 feet in the atmosphere and are associated with heavy rainfall, thunderstorms and lightning. During a storm, clouds develop a separation of electric charge, with the tops of the clouds positively charged and the bottoms negatively charged, as shown in the figure.





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Stage 2