Floodwaters from the Mendenhall River rushed under Sam and Amanda Hatch’s home last August at then record-levels. After the water receded, their house sank several inches into the saturated soil, shifting its foundations. As they rebuilt, the Hatch family decided to elevate their house by four feet on piers to avoid flooding in the future. Scraping together deals and favors, Sam Hatch said the whole process cost around $135,000. It was completed a month ago, he said.

Minor flood stage will begin Monday morning, with flood water expected to crest sometime early Tuesday.

Scientists are enhancing flood forecasts in Juneau as Suicide Basin refills, following an unexpected record flood last year caused by rapid drainage.

“We started seeing structural timber,” one resident said. “And then I was like, ‘Oh, my God. That’s from houses upstream.'”

A home collapses into the Mendenhall River on Saturday due to a record amount of flooding from Suicide Basin since an annual cycle of water release began there in 2011. Officials said nobody was injured when the house collapsed, but other structures along the riverbank are at risk. (Screenshot from video by Sam Nolan).

Juneau resident James Wycoff noticed on his regular walks to Nugget Falls that the face of the glacier seemed to be retreating faster this year than he’s ever seen before. The Mendenhall Glacier’s terminus retreated more than 800 feet.

A second glacial outburst flood began in the eastern Skaftá ice cauldron under Vatnajökull glacier late Saturday evening, RÚV reports. This flood follows a smaller one that originated in the western Skaftá ice cauldron and is expected to do as much damage to local communities and farmland as the last glacial outburst flood on the Skaftá river in 2018.

Weather authorities and residents are getting used to responding to glacial floods in the Mendenhall Valley.