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  1. How Lightning is Created - National Oceanic and Atmospheric Administration

    Apr 5, 2023 · However, exactly how lightning forms has never been verified, so there is room for debate. Leading theories focus around separation of electric charge and generation of an …

  2. Lightning - Wikipedia

    A typical cloud-to-ground lightning flash culminates in the formation of an electrically conducting plasma channel through the air in excess of 5 km (3.1 mi) tall, from within the cloud to the …

  3. Lightning | Voltage, Causes, & Facts | Britannica

    Dec 11, 2025 · Lightning, the visible discharge of electricity that occurs when a region of a cloud acquires an excess electrical charge, either positive or negative, sufficient to break down the …

  4. Why Lightning Strikes: The Science of Lightning Formation and …

    Nov 12, 2025 · Lightning forms when static electricity builds in storm clouds, causing powerful discharges that reveal the electrifying science behind thunderstorms.

  5. Lightning explained — Science Learning Hub

    Lightning is produced as a result of charge separation within the atmosphere. Lightning (a spark discharge between centres of positive and negative charge) can occur within clouds, between …

  6. Thunder and Lightning - Center for Science Education

    Lightning is the most spectacular element of a thunderstorm. Learn how lightning forms, how lightning leads to thunder, and about the types of lightning that occur.

  7. Scientists Discover the Explosive Chain Reaction That Triggers Lightning

    Aug 6, 2025 · Scientists have uncovered how lightning really begins: with invisible particle avalanches and cosmic rays triggering a silent chain reaction inside storm clouds.

  8. NWS JetStream - How Lightning is Created - National Weather Service

    However, exactly how lightning forms has never been verified so there is room for debate. Leading theories focus around separation of electric charge and generation of an electric field …

  9. How lightning works - Canada.ca

    Lightning can occur in dust storms, forest fires, and volcanic eruptions. Particles such as sand, smoke and ash, which exist in these environments, can become electrically charged and …

  10. Severe Weather 101: Lightning Basics

    We generally know what conditions are needed to produce lightning, but there is still debate about exactly how a cloud builds up electrical charges, and how lightning forms.