FOG BLOG CANADA LOG: STRONG 20 MIN. TORNADO TEARS THROUGH DIDSBURY , CARSTAIRS REGION OF ALBERTA!

Tornado that tore through Alberta homes stronger than 95% that touch down in Canada, researcher says Handful of homes completely flattened by massive twister Crews are working to determine the intensity of the tornado that touched down north of Calgary on Saturday, destroying a handful of homes and damaging others.

Environment and Climate Change Canada said the twister tore a path of destruction Saturday afternoon between the towns of Carstairs and Didsbury.

Officials vary in their estimate of homes damaged, ranging from nine to 14, with a handful completely flattened. No one was seriously hurt in the storm, although a woman was found trapped in her basement after the tornado destroyed her house as she was beneath it.

On Monday, the Northern Tornadoes Project surveyed the damage. It's a Western University unit focused on understanding tornadoes in Canada.

"Obviously, this was a very significant event," said Connell Miller, a survey lead with the group. He spoke Monday with Loren McGinnis on the Calgary Eyeopener.