Suicide Basin, the glacier-dammed side basin above the Mendenhall Glacier, may reach capacity around August 12 according to the National Weather Service.

The basin, which has released annual floods into Mendenhall Lake and River since 2011, has risen 20 feet in the past week and currently sits at 1,350 feet, according to a status update released Wednesday.

The most damaging flood occurred one year ago yesterday, August 6, 2024, causing record damage in Juneau.

Once the basin reaches its estimated capacity of 1,368 feet, it typically takes 4 to 6 days before an outburst begins, according to officials.

Officials are urging residents to stay informed and monitor updates from the National Weather Service and local emergency management.

The City and Borough of Juneau has plentiful resources, including emergency alerts, vehicle registration and Mendenhall inundation maps.

The most recent flood event from the basin occurred on October 20, 2024.

More information and updates will be shared as conditions change.