| Comments | Yukon to Ontario, February 8-20, 1979. Weather slowed TransCanada and Alaska oil flow to one fourth its normal flow, causing furnaces to break down from lack of oil; pipes burst across Metro Toronto; Feb. 20, 1979 the first time in recorded history, all five Great Lakes froze over, ceasing all water traffic; a snowstorm in Iqaluit, Northwest Territories caused temperatures to reach -40°C, winds as high as 100 km/h, and snow kept residents indoors for 10 days. |