| Recent Avalanches? | Yes |
| Collapsing (Whumphing)? | Yes |
| Cracking (Shooting cracks)? | Yes |
Observation: Hatcher Pass
Location: Lost and Found Wall
IMB towards Friendship Pass, Crown investigation near Birthday pass, then ascend the Lost and Found Wall, Descend the Found Couloir on Granite Peak.
Obvious signs of instability
Observer Comments
Many recent avalanches, new snow failing on old snow, D2, West > North > East, in elevations band 4,000' to 4800', likely occurred 1/25 to 1/28, all had new snow dusting on bed surfaces and debris.
Collapsing localized, generally small
Cracking localized, generally small, <15' long cracks
Natural dry loose avy activity with direct solar through the day, mostly triggered at rock bands, D1, max D1.5
Weather
Clear, 1.7C@4800', Calm
25cm 1/28 snow storm
Snow surface
widespread SH 2-4 mm below 4500', 6mm on ridgelines at 5000'
low density powder less than 10% density
Snowpack
Recent avalanche activity on new snow/old snow boundary
Instability testing focused on new snow/old snow boundary as well as basal facets in a very weak snowpack consisting mostly of soft facets in a crown profile.
Birthday pass area, 1/28 natural storm avalanche, SE, 4440'
Natural Loose Dry, Gold Chord Peak, SW, 5000'
Pinnacle Apron, natural slabs 1/28, SW, 4800'
Close up Pinnacle
Crown profile, near Birthday Pass, SE, 4330'
Granite Peak Aprons, WNW, 3700'
Natural slab 1/28 and dry loose previous to slab, Baby Ruth Area, WNW, 3700'
Near Birthday Pass, SE, 4330', where crown profile was conducted
cracking