2668. The dense black cumulonimbus clouds surrounding the eye of a hurricane are called __________.

The dense black cumulonimbus clouds surrounding a hurricane's eye are called cloud walls. This ring of towering cumulonimbus clouds, also known as the eyewall, contains the hurricane's most intense winds and rainfall; funnel clouds are associated with tornadoes, spiral rainbands are bands of showers extending outward, and cyclonic spirals is a general description of rotation.