A dark and menacing-looking storm cloud shelf photographed across a prairie field in summer.

What thunderstorms need to turn bad

In this issue we are going to look at what takes a regular old thunderstorm, and turns it into a severe thunderstorm or, occasionally, into a thunderstorm that you truly remember.


Hail can occur pretty much anywhere across North America, but there are two main regions where chances are significantly higher. The first is the central United States. The second is the Canadian Prairies, Alberta in particular. | Getty Images

Understanding how thunderstorms form hail

If you have spent any significant time on the Prairies, you have probably experienced a hailstorm. Hail can occur pretty much anywhere across North America, but there are two main regions where chances are significantly higher. The first is the central United States. The second is the Canadian Prairies, Alberta in particular. Can it be […] Read more


Like most things in nature, thunderstorms rarely behave like the textbook indicates. Even when all ingredients are there, no storms may form, or sometimes a key ingredient is missing, yet we get a really severe storm.  | File photo

What makes a summer thunderstorm severe?

The Prairies have seen unsettled weather in the last month, including several outbreaks of heavy rain, strong wind, hail and even tornadoes, so it is a perfect time to continue a discussion of thunderstorms. Let’s look at what turns a garden-variety thunderstorm into a severe thunderstorm or even a thunderstorm that you truly remember. Typically, […] Read more