June 21, 2013. Calgary, Canada's third-largest city, has begun evacuating 75,000 to 100,000 residents from two dozen downtown neighborhoods as water levels in the Bow River continue to rise. Rivers in southern Alberta have been flooding all week, and schools in Calgary, population 1.1 million, were closed on Friday as a precaution. As water crept into the central business district this morning, many buildings were put under mandatory evacuation order.
Harry Sanders, June Comparative discharge rates of the Bow River during historic floods. Peak rate in Calgary was June 2013 at 1683 cubic metres per second, two notches higher than the green line indicates here.
Calgary mayor to flood evacuees: 'Gather your valuables and go'