投稿者 Richard Smith
観察日付:2019/04/04
標高330m〜150m
同行者Dave Iles
気温 1.2(0700hrs / 950m) 〜 5.6(1515hrs / 950m)
午前FEW 雲量1-3
午後FEW 雲量1-3
午前Nil なし
午後Nil なし
午前
午後
HST
HS Range
午前L 1-7m/s
午後L 1-7m/s
午前S
午後S
飛雪
気象コメント Periods of OVC
雪崩などの観察 Sz 2 Na Glide Slab 150cm 20m 40m NE @ 550m Sz 2 Na LW 250m long S @ 850m in unskiable steep backcountry terrain
雪崩発生有無 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
積雪構造 Moderate sized hard cornice on E aspects stubborn to ski cutting in morning. Wind slab on same aspects unreactive and isolated to within 5m of ridgeline. Large cornice formation observed in backcountry on N & E aspects. Previous new snow became moist during day due to solar and warm temperatures. Surface 20cm wet on solar aspects at all elevations. Ski penetration up to 50cm, but only able to push out snowballs when ski cutting, not entraining.