Mendenhall Glacier, Juneau and Flood
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Suicide Basin, an ice-dammed lake on an arm of Mendenhall Glacier, has filled up with meltwater and sent destructive surges of water into Juneau for 3 straight summers.
The National Weather Service issued a special weather statement indicating that it could take up to six days for the basin to release floodwaters into Mendenhall Lake.
Officials say new barriers protected against the kind of major damage inflicted during last year’s destructive Suicide Basin release, though high water inundated numerous areas.
These floods, which began more than a decade ago, have become increasingly destructive in recent years and now pose a persistent summertime threat. This time, Alaska’s capital city fortified itself against the floodwaters.
University of Alaska Southeast environmental science professor Eran Hood recalled that it was a sunny summer day in 2011 when an unexpected and potentially perilous situation began to unfold. The Mendenhall River,
Authorities are still taking stock of Mendenhall River flooding, but new temporary riverfront barriers appear to have staved off the kind of severe damage seen in 2024.
KTOO’s Alix Soliman is part of the team reporting on this year’s glacial outburst flood. She spoke to Alaska Public Media's Casey Grove about it on Tuesday. Below is the transcript of an interview with Soliman on Alaska News Nightly. It has been lightly edited for length and clarity.
The all clear has been given and residents have been allowed to return to their homes in Alaska’s capital of Juneau after a glacial lake outburst sent debris-filled water rushing down the Mendenhall River on Tuesday night and Wednesday morning.
Residents of Alaska capital Juneau are being urged to evacuate amid an “imminent threat of catastrophic flooding from a glacier lake outburst flood.”
The declaration from Dunleavy came after the City and Borough of Juneau and the Central Council of the Tlingit and Haida Indian Tribes of Alaska declared their own, preemptive disaster declaration ahead of the glacial outburst flood on Friday, as first reported by KTOO.