Crown depth needs to be verified. Sounds like 3-5" thick on shallow side and potentially 3+ feet deep on the thickest side. This was one avalanche , not two. It is possible that this location received more wind (typically does thru the pass), therefore transported more snow, building thicker wind slabs over the past two days, and could have stepped down to the persistent slab. Forecasters will check it out this week.
3/22 This avalanche was not in April Bowl but rather upper $1000 run/lower Hatch Peak on a NW aspect 4000'. The avalanche was approximately 150 ft wide by 200 ft tall with debris 4" to 12" thick, some blocks reaching up to 2' thick and all pencil hard. See recent obs from 3.22 for more info.