would consider adding windslab to problems in upper elevation in this zone. some large collapses and one new avalanche seen in windloaded area in last 24hrs
7 - 12cm H24. dense snow. evidence of strong winds --> upper S-SW aspects scoured down to sagebrush (HS only 10cm on upper elevation SW aspect
upper west face Copper Mtn
|D1||SS||I-New/Old Interface||20||N-Natural||on upper elevation windloaded aspect. did not step down to the buried 12/7 loc||None|
N aspect , eastern summit of copper mtn ridgeline
|D2||SS||O-Old Snow||50cm||U-Unknown||bed surfaces now partially buried by recent snow and windloading. appears occurred with last storm likely running on 12/7 based on depth||None|
NE aspect (30 deg), 8600'. 20* HS 105. 12/7 down 50cm. basal FC 0-45 4mm dry.
ECTN13 down 30
PST cross slope 40/100end down 50 on 12/7
W aspect (90 deg) 8600' 30* HS 95. 12/7 down 50cm basal FC 0-25cm 2-3mm wet.
ECTP13 down 50 on 12/7, loc still showing 10-12mm SH in failure plane (see photo)
persistent slab - not sure what to make of ECTN results on 12/7 N aspect. overlying slab did seem a bit softer here, perhaps S and W aspect overlying slab a bit more cohesive.
wind slab - isolated on ridgelines and in lee, but hard to ignore. shooting cracks, a few impressive collapses today and a natural from last 24.
did not ski on avalanche terrain. was hoping to ski upper elevation S, SW, but windscoured to sagebrush.