Transcription: Why do so many tornadoes form in the United States? When warm moist Gulf air meets cool Canadian air, the warm air rises. Clouds form, storms develop, winds shear, winds at different altitudes blowing in different speeds and directions causes the air between the layers to begin spinning almost like a horizontal tornado although not nearly as fast. When this horizontally rotating air meets an uptight draft. The rotating tube can become stretched and tilted. As the now nearly vertical tube tightens its spin, it speeds up. And the result?
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