Saturday, November 12, 2011
Which way do hurricannes turn on the equator? Clockwise or counterclockwise?
Due to the apparent force (called Coriolis force) that is necessary for tropical cyclone formation (typhoon, hurricane, cyclone to name a few of the other terms for them) they can not form on the equator. It is rare for one to form within 7 degrees either side of the equator. Those that form north of the equator always turn counterclockwise and those south of the equator always turn clockwise. Which ever side they form on, tropical cyclones nearly always move in a direction that is away from the equator. Theoretically, it is possible that they can turn and cross the equator and if they did, they would continue to turn in the direction that they formed. There has never been a case of a tropical cyclone crossing the equator since records have began.
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