"Water in a lake within the Mendenhall Glacier began overtopping an ice dam on Sunday, meaning a glacial outburst flood is days away"
"Officials in Alaska’s capital city are asking residents to voluntarily evacuate from parts of the Mendenhall Valley ahead of an expected glacial flood this week.
Last year’s flood damaged more than 290 homes in the valley, a largely suburban district of Juneau that is located near the Mendenhall Glacier, and while city officials have constructed temporary barriers to deter future flooding, those barriers haven’t yet been tested in an actual emergency.
“We are issuing those evacuation advisories, because although we are extremely confident in the HESCO barriers’ capability to protect neighborhoods, we’re not willing to bet on that with anybody’s life — or safety,” said Ryan O’Shaughnessy, director of emergency programs for the City and Borough of Juneau.
The Mendenhall Glacier Recreation Area, Alaska’s most-visited tourist destination, is preparing to shut down as well. The Nugget Falls Trail, the most-used pathway in the area, was closed to the public on Monday."
Advertisement 
