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Observation: Toledo Bowl

Observation Date
1/30/2023
Observer Name
Brett Carroll
Region
Salt Lake » Little Cottonwood Canyon » Toledo Bowl
Location Name or Route
Toledo Bowl
Red Flags
Red Flags
Recent Avalanches
Cracking
Avalanche Problem #1
Problem
New Snow
Trend
Decreasing Danger
Problem #1 Comments
There was a recently skier-triggered avalanche on a SW aspect in Toledo Bowl (~1' deep, 100' wide) that has already been reported, so I won't repeat that here. That avalanche looked to have failed on the facet crust layer described in the forecast from this morning. I skinned up the center of Toledo Bowl, digging several hand pits on S and SE aspects between 9300-9800'. In those I found a thin decomposing crust layer 2-2.5' below the surface, and found that snow felt well bonded through that layer. I dug a test pit on a SE aspect at 10,000' and got ECT N (no propagation) 25 on that layer, which was 2' below the surface. Overall I found that layer seemed unreactive on the S and SE aspects where I observed it. This suggests that avalanche hazard related to that facet-crust layer is quite localized to SW and W aspects.
Avalanche Problem #2
Problem
Wind Drifted Snow
Trend
Decreasing Danger
Problem #2 Comments
I stomped on a couple wind drifts on SE aspects on the ridge line on the W side of Toledo Bowl and got some minor cracking/sliding. The drifts cracked about 6" below the surface and slid a maximum of 20 feet down the slope. Winds were light at the time (1pm) and there was no wind transport happening.
Today's Observed Danger Rating
Considerable
Tomorrows Estimated Danger Rating
Moderate
Coordinates