State, federal and tribal groups partner with Juneau to prepare for annual glacial outburst flood

By: Corinne Smith

Outlets: Alaska Beacon

Published: July 10, 2026

Words: 704

Last Updated: 1 week, 6 days ago

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Officials and residents in Alaska’s capital city are preparing for what has become an annual summer glacial outburst flooding event that threatens the densely-populated Mendenhall Valley. Similar to past years, flooding is expected in early August.

Federal, state, tribal and local agencies are closely monitoring the Mendehall Glacier, where an ice-dammed lake known as Suicide Basin fills annually with glacial melt that eventually bursts and releases billions of gallons of flood water down the valley …

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