Juneau’s urban avalanche forecast describes “extreme” danger Saturday evening. Centennial Hall will open as an emergency shelter at 8 p.m. Saturday.

Looking at each snow layer tells a story about the winter.

Class 2 avalanche in Hatcher Pass closed down a section of the road between Mile 14 and 16. The nonprofit Hatcher Pass Avalanche Center warned that conditions in the area were dangerous and asked that people avoid the Archangel Road trail nearby.