| Trigger | Unknown | Remote Trigger | Unknown |
| Avalanche Type | Unknown | Aspect | Unknown |
| Elevation | unknown | Slope Angle | unknown |
| Crown Depth | unknown | Width | unknown |
| Vertical Run | unknown |
Avalanche: Hatcher Pass
Location: Marmot and Eldorado
Toured Marmot and Skyscraper Peak. Went up BPC (boot pack couloir) in Rae Wallace. Firm booting conditions with evidence of cornice fall throughout couloir (see 1/15/2020 posted observation).
Marmot: 4200ft 40+ degree slope, SSW aspect: Skier triggered D1.5 sluff, L-ASu-R2-D1.5
Skyscraper Peak: 4600ft, 35+/- degree slope, South aspect. Skier triggered small hard slab avalanche, evidence of recent loading, HS-ASu-R1-D1
Obvious signs of instability
| Recent Avalanches? | Yes |
| Collapsing (Whumphing)? | No |
| Cracking (Shooting cracks)? | Yes |
Observer Comments
Wide spread dry loose activity, evidence of recent wind transport.
Weather
Jan 27th 10:00 am: 9.2F East wind 8mph gusting to 13mph
Jan 27th 1:00 pm 10.2F East wind 11mph gusting to 24mph
No new snow. Some flagging off of top of Marmot but no widespread transport of snow noted at the time of our tour (1000am to 300pm). Flat light conditions prevaled for second half of tour.
Snow surface
The Hatcher Pass Experience: square pow, wind board, breakable crust, and scoured areas. Square powder skiing in wind sheltered "alluvial fan" areas.
Snowpack
No formal snow pits were performed.
small wind slab on Skyscraper peak
sluff before picture on W Face of Marmot
sluff after picture on W Face of Marmot (note debris)