how hurricanes form

how hurricanes form

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  • Hurricanes only form over warm ocean waters near the equator
  • The warm, moist air over the ocean rises upward
  • Because this air moves up and away from the surface, there is less air left near the surface.
  • Air from surrounding areas with higher air pressure pushes in to the low pressure area.
  • This "new" air becomes warm and moist and rises, too.
  • As the warm air continues to rise, the surrounding air swirls in to take its place.
  • As the warmed, moist air rises and cools off, the water in the air forms clouds.
  • The whole system of clouds and wind spins and grows, fed by the ocean's heat and water evaporating from the surface.
  • This is how hurricanes form.
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