Extreme Weather: Tornadoes

Extreme Weather: Tornadoes — page 1 — 4 CHAPTER 1 HOW TORNADOES FORM A tornado is a tower of spinning wind Powerful thunderstorms create tornadoes Inside these storms warm gusts of wind rise These gusts are called updrafts The gusts swirl inside WATCH A VIDEO HERE

Extreme Weather: Tornadoes — page 2 — 5 the storm Sometimes these swirling gusts create a funnel shaped cloud Thunderstorms that can make tornadoes are called supercell thunderstorms

Extreme Weather: Tornadoes — page 3 — 6 At the same time cold gusts of wind sink These gusts are called downdrafts The cold downdrafts wrap around the funnel shaped cloud They force the cloud downward If the cloud touches the ground it is a tornado DID You Tornadoes that form over lakes are called waterspouts KNOW

Extreme Weather: Tornadoes — page 4 — 7 A funnel cloud reaches toward the ground

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