Describes how thunderstorms are formed; the lightning, thunder, winds, and rains that are part of them; and the impact of these storms on plants, animals, and humans.

What is a thunderstorm? -- Where do thunderstorms happen? -- How do clouds form? -- Why do lightning and thunder happen? -- Measuring thunderstorms -- Harmful thunderstorms 1 -- Harmful thunderstorms 2 -- Helpful thunderstorms -- Getting ready -- Coping with thunderstorms (humans) -- Coping with thunderstorms (animals) -- Coping with thunderstorms (plants) -- To the rescue!.