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Observation: Boundary Creek

Observation Date
3/22/2022
Observer Name
John Mletschnig
Region
Uintas » Boundary Creek
Location Name or Route
Boundary Creek
Red Flags
Red Flags
Cracking
Collapsing
Rapid Warming
Poor Snowpack Structure
Red Flags Comments
We had numerous, booming collapses with shooting cracks 50-100' in all directions on NW-N-NE-E aspects between 9500-10500' from 3/20-2/22 near Boundary Creek Yurt. All failures were on the Buried Near Surface Facet layer down 40-60cm from the surface. In all we probably had ~20 large collapses in our travels. We preformed multiple stability tests in three different snow pits and found the failure plane of most concern 8-10cm down from the NSF/DF interface boundary. On average we saw a mix of ECTP and ECTN 22-30 while CT we did showed Sudden Collapses (Q1) in the Moderate and Hard ranges. We did not travel on slopes above 30 degrees
Avalanche Problem #1
Problem
Persistent Weak Layer
Trend
Same
Problem #1 Comments
In sheltered locations this seems to be most prominent. By no means would I trust anything over 30° NW-N-E. I think I can say with confidence we observed Considerable danger in our travels. In the coming days the warm temps will certainly help in the long run. In the short term, all bets are off.
Today's Observed Danger Rating
Considerable
Tomorrows Estimated Danger Rating
None