Described avalanche was the largest we saw. Saw many (<10) smaller Na wet loose avalanches either recent in storm snow or witnessed.
Weather
Snowpack
22cm of new moist fist snow on a pencil MFcr. New snow was poorly bonded going as wet loose, no signs of slab instability. CTH3 PC down 33 in hardness change between MFcr and MFcl. Pit was 1m deep and all the layers were moist or wet, no signs of any preserved surface hoar or facets.