Severe thunderstorms roared through central Alberta Thursday night, prompting Environment and Climate Change Canada (ECCC) to issue a rare broadcast-intrusive warning for wind gusts up to 130 km/h.

There hadn’t been an EF5 — the most intense on the five-point Enhanced Fujita Scale — anywhere on the planet for more than 12 years, dating back to an Oklahoma tornado on May 20, 2013. And then on ...

Two new reports on last year's devastating wildfire in Jasper, Alta., confirm the blaze was caused by lightning and accelerated by "tornado-force fire-generated" winds and dry conditions.

It usually takes from days to weeks to determine the strength of a tornado by its wind speed, which meteorologists do by examining the damage to buildings and trees. This tornado took much longer to ...