Strong convection can trigger severe thunderstorms, and may develop into severe weather phenomena such as hailstorms and squall lines. The new episode of "Cool Met Stuff" will tell you how hails and squall lines form. The video is now available on the "MyObservatory" mobile application and the Observatory's website for your viewing.
Observatory's "Cool Met Stuff" channel (broadcast in Cantonese):
Broadcast schedule of various TV channels: