Observer Peter Leh
Observation At:2021/01/14
Elevation340m〜970m
Co-workerHokkaido Backcountry Club
Temp. 〜
午前OVC 雲量10
午後OVC 雲量10
午前S 雪
午後S 雪
午前S1
午後S1
HST
HS Range
午前S 12-17m/s
午後S 12-17m/s
午前W
午後W
飛雪
気象コメント
Avalanche Observations 1400 @ Wind Slab Size 1 Skier Triggered down 40cm 20m crown flowed 60m. N aspect 38degrees One @960m One @ 890m Did not propagate above ski cuts
Avalanche Activities_Yes or No Yes
シューティングクラック No
重要な層と弱層とテスト結果
Snowpack Temperatures dropped throughout day with additional blowing and drifting snow. First run off N side west peak no cracking. An hour later wind slabs forming with lots cracking and several small slab releases