Severe storm with heavy hail across southern Alberta, Canada

A thunderstorm swept across southern Alberta Monday, prompting Environment Canada to issue thunderstorm warnings and watches.

The Heritage Day storm had officials warning of heavy rain and possible hail. The Calgary Airport was under a lightning advisory for about half an hour.

Thunderstorm watches and warnings were issued for much of southern and central Alberta, moving from west to east with the storm.

“Environment Canada meteorologists are tracking a severe thunderstorm capable of producing dime to nickel size hail and heavy rain,” according to Environment Canada. “Remember, severe thunderstorms can produce tornadoes.”