in the center of a powerful hurricane (called the eye), air may sink rather than rise, which suppresses cloud formation, leading to clam skies and wind. The eye of a hurricane can be up to 240 miles in diameter, but is normally between 20 and 40 miles in diameter. The clouds on the edge of the eye form the eyewall of the hurricane, which typically feature the hurricane's strongest winds, highest clouds, and firecest precipitation.