See inside the eye of a cyclone, witness hailstones the size of tennis balls, and learn how a gentle mountain stream can become a raging surge within a few minutes. With striking images, models, and illustrations, this visual guide offers a unique view of catastrophic weather conditions. From polar regions to the tropics, Eyewitness Hurricane & Tornado shows the effects of nature's most extreme weather. Discover a bridge that collapsed due to severe gusts of wind, and learn about a tree species in southwest Africa that can survive several years of drought. , , Along the way you'll uncover historical items that reveal how ancient civilizations predicted the weather as well as the weather-forecasting techniques that have developed over the centuries and the ways in which human activity can cause weather patterns to change. Part of DK's best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fresh new look, new photographs, updated information, and a new "eyewitness feature - fascinating first-hand accounts from experts in the field.