Damage from a tornado in west end Ottawa, ON, 22 Sept 2018 (Instagram)
Environment Canada has confirmed two powerful tornadoes ripped through west end Ottawa before touching down again in Gatineau across the Ottawa River.
Officials say dozens were hurt and at least two residents are in hospital with critical injuries.
Tens of thousands were left without power after at least 80 utility poles either snapped or were damaged.
Meteorologists say severe thunderstorms spawned one twister classified as an EF-3 with winds up to 265 km/h while another tornado was an EF-2 with winds up to 220 km/h.
Tornadoes are not uncommon in Southern Ontario but storms of this strength are rare.
Strong waves crashing ashore at Pensacola Beach, Florida, USA, 04 Sept 2018 (Instagram)
Tropical Storm Gordon has claimed at least one life after striking the American Gulf Coast late Tuesday near the Alabama-Mississippi border.
Authorities say strong winds caused a tree to fall on a mobile home in Pensacola, Florida where a child was found deceased.
The U.S. National Hurricane Centre says Gordon weakened as it moved inland and was not powerful enough to reach hurricane status.
Tornado warnings were issued after radar showed possible twisters stemming from the storm.
Forecasters say as much as 200 cm of rain (almost 80 inches) could fall and the system could have an impact on Eastern Canada by early next week.
Tornado swirling near Three Hills, AB, 02 June 2017 (TWN/Twitter)
A large tornado touched down in central Alberta near Three Hills on Friday afternoon amid severe thunderstorms.
Environment Canada had issued a tornado warning for the region which lasted about half an hour.
Officials say wind speeds up to 130 km/h caused damage to trees, roofs and buildings but no one was hurt.
Tornado devastation in Washington, Illinois, USA, 18 Nov 2013 (Twitter)
Meteorologists say two tornadoes which touched down on Sunday in the state of Illinois, USA have been given ratings of EF-4 on the Enhanced Fujita Scale – one in the city of Washington and the other in the village of New Minden.
These twisters are now the strongest November tornadoes on record in Illinois where peak winds reached 300 km/h.
Almost 50 tornadoes touched down across the American Midwest and Ohio River Valley.
The clean up is well underway as cold Arctic air settles in over the region.
Henryville in southern Indiana USA, 02 Mar 2012 (AP)
Tornado season is well underway in the American Midwest after at least 40 people were killed in a series of vicious twisters.
The storms created a path of destruction in the states of Kentucky, Indiana, Ohio, Alabama and Georgia.
“The damage I saw was the worst I’ve seen. It was a war zone, debris everywhere, buildings destroyed, other buildings just the walls standing, roofs gone. It was a terrible sight.”
Those words from Kentucky Governor Steve Beshear who described his visit to the tornado-ravaged town of West Liberty.