Supercells are the mightiest of the thunderstorms. They can roll for hours while maintaining tornadoes and damaging hail.

Supercells are the king of thunderstorms. They can tower 10 or more miles tall, spin like a top and produce the most extreme ...

The weather service said there is a potential for hail to be baseball-sized or even larger for several hours after sunset.

The word “supercell” may sound like hype, but they are real thunderstorms with rotating updrafts that can have serious ...

The National Weather Service says supercell thunderstorms are possible April 28 in central Wisconsin with golf-ball size hail ...

Winds surpassing 100 kilometres an hour and ping-pong ball-sized hail are in the forecast for parts of southern and eastern ...

A taste of summer heat in southern Ontario on Tuesday could also set off severe thunderstorms in the afternoon and evening, ...