Also known as eye of a storm, eye of a cyclone, eye of a hurricane
region of mostly calm weather at the center of strong tropical cyclones
~17 min read
Encyclopedic overview
Typhoon Trami showing a well-defined eye at the center of the storm as seen from the International Space Station
The eye is a region of mostly calm weather at the center of a tropical cyclone. The eye of a storm is a roughly circular area, typically 30–65 kilometers (19–40 miles; 16–35 nautical miles) in diameter. It is surrounded by the eyewall, a ring of towering thunderstorms where the most severe weather and highest winds of the cyclone occur. The cyclone's lowest barometric pressure occurs in the eye and can be as much as 15 percent lower than the pressure outside the storm.
Excerpted from Wikipedia’s “eye” article, available under the CC BY-SA 4.0 licence.