Photo submitted to view the extent of debris and path from the 20200227 D3 avalanche. We descend the Escape Hatch and witnessed 8″ diameter spruce krumholtz broken clean. Impressive.
Photo taken Monday March 9, 2020.
Today (3/8) on our AIARE Level 1 course we dug pits on the climbers left side of the Right Gulley in Tuckerman Ravine at the 4,650 foot level. We found 30cm pencil hard snow on top of the crust layer. We had one CT 26 Q2/RP at this interface and had . . .
There were few signs of instability, crowds, or wind today in the lower reaches of Raymond Cataract. Large ice blocks had fallen thirty feet and impacted the 33-degree slope without triggering avalanches. The ice blocks appeared to have fallen days . . .
Similar location to earlier this week. Results show propagation on a 1cm later of facets between two ice crusts. The upper ice crust is becoming less evident and easier to break.
ECTP 22 down 50cm
Confirmed with a second ECT (same pit) showing the . . .
We preformed a number of compression tests, one extended column test and one propagation saw test on a small east facing hill, sheltered by trees, near the avalanche devastation below Hillman’s Highway. While the nature of the terrain may not . . .
No observed natural avalanche activity. Lots of loading in South, Central, and the Fan.
We performed a number of tests in a pit on a 26deg slope on a SE aspect, finding 60cm or so of upside down wind slab on a crust. A second crust, (perhaps two . . .
We encountered an up right slab varying from 10cm to 40cm it was well bonded to the old ice crust. Under the ice crust was a 2-4cm layer of 4F .5mm grains. They were dry, but easy stuck together to create a snow ball. Pole probing showed a pretty . . .
We climbed a long snow gully left of Dodges Drop in Tuckerman Ravine to the Boott Spur ridge, looking for wind slab formation out of curiosity as this slope has a similar aspect as Escape Hatch in Huntington Ravine, which avalanched naturally during . . .
Partway up Willey’s Slide, we saw a large shooting crack (approx. 50ft long) form where we were standing in the snow below an ice bulge, so we decided to bail. The snowpack was variable and included sections of firm scoured snow, sections of soft . . .
The 9.5″ of 17″ snow on 2/27/2020 with wind from the ESE then W produced a number of natural avalanches.
-Escape Hatch in Huntington Ravine. Large avalanche D3 cleared trees to within 15 feet of the Huntington Ravine Trail. Debris measured over 10 . . .