Jul 1, 2016
Throughout spring and the first part of the summer Suicide Basin, a side valley that is dammed by the Mendenhall Glacier, filled with water from snow melt and rainfall. In the morning hours of June 29th the gauge in the basin began to show signs of falling as the glacier dam was starting to fail. Through the next 24 hours a downward trend was evident and the event was starting. For the next 2 days the Mendenhall Lake and River rose just under seven feet and crested at a record level of 11.99 fee
Source: NOAA National Weather Service Storm Events Database (event 637792). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Juneau Borough County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.