The center of a cyclone is a calm, sunny area called the eye.

The eye of a tropical cyclone is a roughly circular area of comparatively light winds and fair weather found at the center of a severe storm. This phenomenon is caused by descending air within the core, which inhibits the formation of clouds and creates a low-pressure zone. According to the National Oceanic and Atmospheric Administration (NOAA), the eye typically ranges from 20 to 40 miles (32 to 64 kilometers) in diameter.Surrounding the eye is the eyewall, which contains the most intense winds and heaviest rainfall of the entire storm. The transition from the calm eye to the eyewall is often instantaneous and extremely dangerous for those on the ground. This structure is maintained by the conservation of angular momentum as air spirals inward toward the center of the storm.Historically, the smallest eye ever recorded was only 2 miles wide during Typhoon Tip in 1979. Conversely, Typhoon Carmen in 1960 featured an eye that reached a massive 230 miles in diameter. Meteorologists use satellite imagery and 'Hurricane Hunter' aircraft to monitor these centers, as the size and pressure of the eye are key indicators of a storm's overall intensity and potential for destruction.