A huge basin of rainwater and snowmelt dammed by Alaska’s Mendenhall Glacier has started to release, and officials on Tuesday urged residents in some parts of Juneau to evacuate ahead of what could be a record surge of floodwater downstream.
Officials in recent days have been warning people in the flood zone to be ready to evacuate. On Tuesday morning they confirmed water had started escaping the ice dam and flowing downstream, with flooding expected late Tuesday into Wednesday.
