One of the most dangerous consequences of a hurricane making landfall is the large dome of water that builds up under the eye of the storm such as what caused the flooding and devastation in new orleans with hurricane katrina. what is this dome of water called?

The eye  

Explanation:

The dome of the water that builds up in the center of the hurricane is known as the eye. The eye of the hurricane is referred to as or known as region that tends to mostly have calm weather at center of a strong tropical hurricane. The eye of hurricane tends to have a circular area that is typically ranging from 30 to 65 kilometers in the diameter.

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