Observation: Public

Observation Details

Signs of Unstable Snow

Observations

In an attempt to track & record the presence and distribution of the current deep persistent weak layer, targeted observations were limited and time consuming. However incredibly valuable to prove the presence of this weakness.

North aspect @ 5,200' (NTL) at ridgeline on a partly sheltered leeward aspect. Shovel tilt moderate planar down 10cm & 30cm, CTH (26) SC down 55cm. Probing the observation site revealed the mid January MFcr/ FC (crust facet sammie) down nearly 2m. Where as the 2/1 weakness was found approximately 75cm down.

South aspect @ 5,100' (NTL) Hand Shear Very Easy (during isolation) under a crust formed sometime on around February 7th.

Northwest aspect @ 4,600' (NTL) ECTX, column depth was approximately 120cm. Probing this site found the mid January layer down approximately 1.5m due to spatial variability and the sites exposure to SW winds.

No new avalanche activity observed. But old slide paths from early February events were nearly filled in and many flanks & crowns were hard to see due to recent new snow.