Crown line observed low in the lower construction of Hillman’s and a related debris pile.
Likely happened Jan 8 during the afternoon or night.
1/8/2020 – 5.2 inches of snow recorded on the summit on WNW(290) wind 43.5 to 95 mph.
1/7/2020 – 1.6 inches of snow recorded on the summit on W(270) wind 41.8 to 90 mph.
1/6/2020 – 2.2 inches of . . .
Many consecutive days of snow on a W-NW wind. No further details.
Fresh low-density snow from the afternoon of 1/6 was being transported by strong west winds. New snow was undisturbed below tree line. Near treeline, winds began to scour and load some areas of the terrain. Visibility was minimal at higher . . .
Snow profile in main gully, not completely positive on all grain identifications
A couple inches of new snow in the past 48 hrs were transported into Tuckerman Ravine yesterday, causing what appeared to be a natural avalanche this morning: HS-N-R3-D3. Crown line ran from below the center of the Icefall almost all the way over to . . .
Light snow fall toward the end of the day. Light to calm winds all day.
Somewhat reactive softer slab (F) found over 4F layer down to 1F around 50cm down, then a thin 4F layer of facets over a MFcr that produced multiple CTM, Q2 failures and one ECTN22 result.
Old debris in the main gully extends down to about the 4100’ level, 100’ above where the gully chokes and goes skiers right. We ascended a few hundred feet on the high ground climbers left till the vegetation blocked upward progress. Snow in the . . .
Moderate west and northwest winds at 4000’. It Snowed all day at around S1 to S2. Small convexities on the side of the cog consistently cracked and slumped. 4-6 inches of fresh snow on the decent.