In June, British Columbia recieved an unusually high amount of rain, resulting in several floods and mudslides in several cities and towns in the province.
Revelstoke Dam is the tallest dam in Canada. It dams the Columbia River just northwest of the city of Revelstoke. There is a large reservoire above it called Lake Revelstoke. During the week of June 11th, Revelstoke and surrounding area got a substantial amount of rain. It rained almost non-stop for 2 weeks straight, which put the water level in the reservoire up to a dangerously high level, and Revelstoke Dam had to open its spillways for the third time since its opening in 1984. This raised the water level below the dam more than 20 feet!