Most people think that lightening only occurs during thunderstorms. However, lightening can actually occur any time there is a large difference in electrical potential in the atmosphere. This can happen during thunderstorms, but also during other weather events like hurricanes and tornadoes.
Lightening is a natural phenomenon that occurs when the atmosphere is charged with electricity. This can happen during thunderstorms, when high winds disperse the charges in the atmosphere. Lightning can also occur when there is a lot of static electricity in the atmosphere, such as during a dust storm.