Observation: Abajos

Observation Date
2/10/2021
Observer Name
Chris Benson
Region
Abajos
Location Name or Route
North Creek
Weather
Sky
Obscured
Precipitation
Light Snowfall
Wind Speed
Calm
Weather Comments
Light snow and graupel throughout the day.
Snow Characteristics
New Snow Depth
2"
New Snow Density
Low
Snow Surface Conditions
Powder
Wind Crust
Melt-Freeze Crust
Snow Characteristics Comments
Snow was quite variable. Many south and westerly aspects are completely snow-free, or have very shallow snow depths. On north and east aspects, snow depth increases quickly. I did not observe any collapsing or cracking today while breaking trail. I dug a pit on an east aspect next to an older slide from Jan. 26th near North Creek Pass to better understand what layer this avalanche occurred on. It appears that it probably failed on the Jan. 22 interface (the new/old snow interface).
North and east aspects continue to have poor snowpack structure with a host of weak layers and a slab resting on top.
Red Flags
Red Flags
Poor Snowpack Structure
Avalanche Problem #1
Problem
Persistent Weak Layer
Problem #1 Comments
These distinct layers were on a NNW aspect near Abajo Peak. I got two, CTH results with sudden planar fracture character. This layer is about 50 cm down and could be some buried surface hoar. In any event, there are several persistant weak layers that could produce slab avalanches as there are 1F-4F slabs resting above them.
Video
Quick scan of an older avalanche on an easterly aspect and a view of the variable snowpack around North Creek Pass.
Today's Observed Danger Rating
Considerable
Tomorrows Estimated Danger Rating
Moderate
Coordinates