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==Hi, our names are Izzy and Courtney. We are from Kirkwood Intermediate, and we are studying natural disasters (weather based) but we choose tornadoes to focus on. ==

THE FORMING OF A TORNADO.
==the deadliest tornadoes happen in the US, and typical tornado normally only lasts for around 5 minutes. tornadoes are caused when two different temperatures meet to form thunder clouds. in the US, wet winds from the ocean of Mexico move northward in spring and summer, meeting colder, dry Canadian winds moving southward. the place where these two winds meet is called a dry line. ==

==high, dry air coming from north piles on top of low moving moist sea air at the height of over 10,000 feet. the warm southern winds try to rise but the cold northern air blocks them. this clash causes the warm tracked air to rotate horizontally between the two air masses. at the same time, the sun heats the earth below, warming more air that tries to rise up. finally, the rising, warm wind became strong enough to force itself up through the colder air layer. ==

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[[image:tornadomania321/tornado width="239" height="271" caption="a tornado ripping apart a house!"]]
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