Canada - Robert Downie
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Nechako River Ice Jam

The deep freeze in December 2016 saw consistent temperatures between -20C and -30C (-4F and -22F) that caused the ice jam on the Nechako River in Prince George. The town declared a Level 1 emergency when the ice jam reached the confluence of the Fraser River. Ice jams cause the river level to rise and can lead to flooding and damage to the structural integrity of bridges . The ice in an ice jam is dangerous and unstable and not suitable for walking on.


From Weather