Near Deadman Pass, observed by Chris B and John M, this slide broke nearly 1,000' wide on a steep, rocky and complex slope. This avalanche most likely occurred naturally during a spike in wind this past week. Find more information, here.
It may be the middle of March, but its tricky out there and here's why-- Weak, sugary facets that formed during January are now protected under a dense, cohesive slab buried between 1 and 4' deep. It’s strong snow over weak snow and that’s a dangerous combo. Obvious clues and red flags are not screaming at us any more, and there is a good chance we can trench multiple sets of tracks on a slope without triggering an avalanche. Heres the catch though, all we need to do is find a weakness where the slab and weak layer are susceptible to our additional weight as a rider, maybe around a rock outcropping or tree, collapse the pack, and trigger the avalanche.
This problem isn’t everywhere, but it’s unpredictable and hard to manage. Avoid upper elevation complex slopes that are rocky and steep on the north half of the compass, this terrain is still off the table for me and my crew. We can not outsmart this problem, so avoidance is the go-to tool for this dragon.
On a north facing slope near 11,000' you can see a cohesive slab sitting over our weak, sugary, facets that have been the culprit of recent human-triggered and natural avalanches. With this weeks historical warm-up, our facets are going to get a historical test and things could get interesting.