"Polar cyclones" refers to severe and intense storms that occur in the polar regions. These storms are characterized by strong winds swirling around a low-pressure center. Full definition
Early science results from NASA's Juno mission portray the largest planet in our solar system as a turbulent world, with an intriguingly complex interior structure, energetic polar aurora, and huge polar cyclones. (sciencedaily.com)
In the north, eight circumpolar cyclones surround a single polar cyclone. (sciencedaily.com)
In the case of Saturn, the planet's atmospheric conditions and storm activity are within the range that would generate a large polar cyclone. (sciencedaily.com)