Above: Satellite view of the Great Lakes on a recent clear day ... one-third of the population of Canada live within their drainage basin. They hold about 6 quadrillion gallons of water, or ...

Clever engineering and regular maintenance keep a 100-year-old dam and levee system operating, protecting more than $10 billion in property annually.

Cloudy. Very high chance of showers. The chance of a thunderstorm, possibly severe, with possible heavy falls about the ranges. Light winds becoming west to southwesterly 15 to 20 km/h in the late ...