August 15, 2012 — Another round of thunderstorms roared through southern Alberta Tuesday, bringing large hail and damaging winds to cities like Airdrie and Calgary.
Severe thunderstorms rumbled through southern Alberta Tuesday afternoon, leaving a trail of damage in some places.
Trees were uprooted and snapped in half near the city of Calgary. In nearby Airdrie, hail bounced off decks and driveways.
Weather watches and warnings that were in place at the time, suggested that heavy rain, hail and strong winds were all possible.
Some windows were blown out of buildings in downtown Calgary and two window washers were briefly trapped outside on the 21st floor of a high rise building. They were treated for minor injuries by EMS, but say it was more of a scare as the storm took them by surprise.
"Wind gusts of up to 100 km/h were recorded Tuesday," says Dayna Vettese, a meteorologist at The Weather Network.
Power outages were also reported.
At one point, lights were out at several intersections and police were directing traffic.
At the Calgary International Airport, some operations were disrupted by the stormy weather. A lightning advisory was issued and flights to and from Edmonton and Toronto were cancelled.
Temperatures took quite the plunge as well.
"In roughly 25 minutes, temperatures dropped by 10 degrees," says Vettese. "The passing of the cold front brought the stormy conditions and cooler temperatures.
It's been a stormy few days across the Prairies. On Sunday, large hail came crashing to the ground in the Calgary area, smashing car windows and flattening gardens.
For a closer look at the weather forecast, check our Alberta Cities Index.