Avalanche: Main Days

Observer Name
Catino
Observation Date
Tuesday, February 2, 2021
Avalanche Date
Sunday, January 31, 2021
Region
Salt Lake » Big Cottonwood Canyon » Days Fork » Main Days
Location Name or Route
Main Days
Elevation
10,000'
Aspect
Southeast
Trigger
Natural
Comments
Drew and I spoke about this while I was in the field, and it can all be a little grey on which slide occurred first.
It seems like during the storm some of the NE aspects in main days slid during the cycle, with maybe a repeater from where the heli slide occurred near the ridge (tough to tell, but saw a small crown still today).
However, the main story was that the SE side of Main Days broke and then ran into the prominent gully, and carried roughly 1K - debris curled all the way around the corner at the bottom towards the lower trees separating it from Banana Days. I accidentally deleted one photo, but it broke into old snow at the crown, and then ran into the main center gully. It was impressive and I would bet we see more of these slides in this drainage with additional loads - running large and close to full track, even if there are some tracks in the gully of Crystal Palace currently...
There was also a slide on the bottom roll on the far skiers left. Whether this was sympathetic or not is still up in the air, but either way lots of action up there with the past storm.
Coordinates