Two heavy rainstorms caused flooding and landslides in the upper valley last week, damaging infrastructure and leaving two residents temporarily trapped in their vehicle.
Alpine permafrost is thawing, according to an article by the National Science Foundation. This is bad news because thawing releases carbon dioxide and methane and because it can cause destabilization of the land, as a couple of northbound drivers found out last week when their car was buried in the slide at 23 miles, as reported in a Chilkat Valley News article.
The City and Borough of Juneau on Tuesday began the multi-day process of cleaning up after a Monday night landslide in the area of Gastineau Avenue.The landslide damaged three homes and displaced residents, but there were no injuries reported.
A small landslide has closed the White Pass Railroad Dock to vehicular and pedestrian traffic in Skagway. “No one was injured during the occurrence,” Marketing Manager Jacqueline Taylor-Rose wrote. “The cruise ships scheduled for the pier have made alternative plans for the day.
Dozens more homes in Haines were evacuated Thursday night as rain continued to saturate the mountainsides near residential neighborhoods.
The region is prime landslide territory and a changing climate - trending toward warmer, rainier winters - is likely to increase the frequency of slides in the future.
Nearly 12 inches of rain fell on the town of Pelican in 48 hours, and all-time records were set in Juneau, Skagway, Haines, Petersburg and Ketchikan. The City of Haines is sending alerts about the immediate danger of landslides.
Climate change has caused a 60-fold increase in active landslides on one Canadian Arctic island.