Safety
National Program
Lightning is a giant spark of electricity in the atmosphere or between the atmosphere and the ground. In the initial stages of development, air acts as an insulator between the positive and negative charges in the cloud and between the cloud and the ground; however, when the differences in charges becomes too great, this insulating capacity of the air breaks down and there is a rapid discharge of electricity that we know as lightning. There's so much to learn about lightning.
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Safety
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