Warm, moist air flows into a hurricane from low levels above the ocean's surface. It then rises upward, either in bands around the hurricane's eye or in the eyewall. The following pictures show a hurricane's low-level air inflow patterns.
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The top two pictures show a bird's-eye view, and the bottom two pictures show a view from the side. The two pictures on the right show wireframe outlines for the storm clouds, while the two on the left use solid white and grey surfaces to show the cloudy areas.