Final answer:
The air that spirals upward around the eyewall of a hurricane is warm and moist air. This warm air carries a lot of moisture, which condenses and forms clouds and precipitation.
Step-by-step explanation:
The air that spirals upward around the eyewall of a hurricane is warm and moist air. As the hurricane forms, warm air is drawn in from the surrounding area and rises rapidly in the eyewall, which is the area of strongest winds surrounding the calm eye of the storm. This warm air carries a lot of moisture, which condenses and forms clouds and precipitation.