• snowe
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      52 years ago

      I believe it’s because currents of air rotate in the opposite direction. So to cross the equator the air would have to pass a boundary of global air currents which are going counter to the hurricane’s motion. See this picture for a reference.

    • Captain Aggravated
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      32 years ago

      Because of things like Coriolis effect and convective currents, there just aren’t winds that blow across the equator, not at the scale that would blow a hurricane from one hemisphere to the other anyway.

      Winds tend to blow along and away from the equator, not across it.