Mesoscale convective systems (MCS) are common across Canada during the summer. Here’s a look at these storms and how they form ...

Thunderstorms have been forecast for Wales and parts of central and southern England on Monday but what conditions are needed for them to form? BBC Weather's Ben Rich explains the science behind ...

Thunderstorms need three ingredients to form. There needs to be moisture, rising unstable air and lift. Think of air in a balloon. If you bump the bottom of a balloon, it stays up in the air.

Tornadoes don't just appear out of nowhere. They need the perfect storm to form. It starts when warm, humid air clashes with cold air, which can generate a powerful thunderstorm known as a supercell.

WATCH: How do thunderstorms form? It's just like baking a cake. Thumbnail contains images from GettyImages-172296371 (left) and NOAA/Unsplash (right).