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  1. Thunderstorm - Wikipedia

    Thunderstorms are responsible for the development and formation of many severe weather phenomena, which can be potentially hazardous. Damage that results from thunderstorms is …

  2. Severe Weather 101: Thunderstorm Basics

    How does a thunderstorm form? Three basic ingredients are required for a thunderstorm to form: moisture, rising unstable air (air that keeps rising when given a nudge), and a lifting …

  3. Thunderstorm | Definition, Types, Structure, & Facts | Britannica

    Oct 2, 2025 · Thunderstorm, a violent short-lived weather disturbance that is almost always associated with lightning, thunder, dense clouds, heavy rain or hail, and strong gusty winds. …

  4. How Thunderstorms Form - Center for Science Education

    With an updraft, downdraft, and rain, the cloud is now called a cumulonimbus cloud and the cycling of air up and down is called a thunderstorm cell. The moving air within the cloud builds …

  5. Thunderstorms & Lightning - Ready.gov

    Jul 10, 2025 · Thunderstorms are common and can be dangerous. They can bring intense wind, flash flooding, hail and dangerous lightning. Know your area’s risk for thunderstorms. In most …

  6. THUNDERSTORMS - National Weather Service

    The difference between a thunderstorm and a severe thunderstorm is the wind field. For a severe thunderstorm, the ingredients that must be present are moisture, instability, lift and strong …

  7. What causes thunderstorms? How storms (and lightning) form.

    Aug 1, 2023 · Rapidly rising air causes thunderstorms. The cloud eventually rises upward to temperatures below freezing, creating ice particles. These ice particles may collide and …

  8. Thunderstorms - National Oceanic and Atmospheric Administration

    Apr 14, 2023 · It is estimated that there are as many as 40,000 thunderstorm occurrences each day world-wide. This translates into an astounding 14.6 million occurrences annually!

  9. Thunderstorm Safety - American Red Cross

    Thunderstorm safety tips from the American Red Cross. Every thunderstorm produces lightning, which kills more people each year than tornadoes or hurricanes.

  10. Severe Thunderstorm Safety - National Weather Service

    Some severe thunderstorms can produce hail larger than softballs or winds over 100 mph, so please pay attention to the weather so you know when severe storms are possible. …