Observation: Public
Observation Details
Observation Date:
February 7, 2021Submitted:
February 7, 2021Zone or Region:
Stevens PassActivity:
Skiing/SnowboardingLocation:
YodelinTriggered Avalanches
Did you trigger any avalanches?
YesWas it intentional?
YesAvalanche Type:
Dry Loose (Sluff)Size:
Size 1: Relatively harmless to peopleElevation:
Below treelineAspect:
NWComments:
Dry loose on small convex roll, less than one foot deep, activated by ski cut. Did not interact with persistent weak layer. Did not continue to run beyond the bottom of the roll. This was just below the road cut that is commonly used to skin back upObserved Avalanches
Did you observe any avalanches?
YesAvalanche Type:
Dry Loose (Sluff)Size:
Size 2: Could bury, injure, or kill a personElevation:
Near treelineAspect:
SEComments:
Observed from across the valley on the SE face of Lichtenburg through a sucker hole. Did not appear to be covered with newly fallen snow. Ran long and thin, at least 500ft in elevation 50ft or less wide.Signs of Unstable Snow
Observations
In a single column test, near the top of the ridge on the NW face of Yodelin, we observed a reactive interface between the rain crust and the new snow. It broke after 4 light taps from the elbow and slid easily. The face of the break was slightly lumpy and consisted of irregular sugary crystals. When the column was moved to be inspected it split about one foot from the surface with the total height of the column being about 2.5 feet above the rain crust. The split was very planer and we were able to get it to react in the face of the pit with a shovel pull test but it did not react when tapped. The top foot of snow was blower with the lower portion being slightly more consolidated. We stayed on low angle terrane and did not see many signs of reactiveness while riding other than plentiful dry sluff.