"Cool Met Stuff": The secret of the double-eye – eyewall replacement cycle of typhoons

7 November 2025

When a tropical cyclone develops to a certain intensity, eyewall replacement cycles will usually occur, and a structure commonly known as a "double eyewall" will develop. This new episode of "Cool Met Stuff" will introduce the eyewall replacement cycle of tropical cyclones.

The video is now available on the "MyObservatory" mobile application and the Observatory's website for your viewing (programme is broadcasted in Cantonese).

Welcome to view "Cool Met Stuff" from this link (broadcast in Cantonese).
Broadcast schedule of various TV channels can be found here.