The 142nd and final avalanche advisory for the 2017/2018 season was published on April 22nd. Thank you to all who have supported the avalanche center through volunteer hours, field observations, and financial support.
Wind slabs on Andesite Peak.
Donner Summit Area
Date and time of observation:
Thu, 12/21/2017 - 11:00
United States39° 21' 0.7632" N, 120° 22' 0.0588" W
Recent loading by new snow, wind, or rain
Observation made by: Forecaster