雪崩ハザード評価の登録
Observer Richard Smith
Posted At：2019/04/14 16:35
RangeMyoko/Togakushi Mountain大毛無山 Locationアライスキー場
Observation At：2019/04/14
Elevation330m〜1350m
Co-workerDave Iles
観察データ
気象データ
Temp. 7.6(0700hrs / 950m) 〜 10.7(1300hrs / 950m)
天気
午前OVC 雲量10
午後OVC 雲量10
降水種類
午前R 雨
午後R 雨
降水強度
午前RV
午後RV
HST
HS Range
風速
午前L 1-7m/s
午後L 1-7m/s
風向
午前SW
午後SW
飛雪
気象コメント Few until 1330 RV from 1430
雪崩データ
Avalanche Observations Multiple size 1 LW from ski cutting between 1000m and 700m. 10 - 20cm deep, running slowly and only entraining previous HN from 190411.
Avalanche Activities_Yes or No Yes
シューティングクラック No
積雪データ
重要な層と弱層とテスト結果
Snowpack Weak overnight refreeze at high elevations, thin MFcr broke down quickly. Remaining areas of HN from 190411 (surface still white) F hardness, bellow 1000m wet and reactive. Where the HN has melted or already avalanched, the surface is brown and wet but supportive.
Comments
