Snowpack

Carson Pass/Frog Lake

Jason BilekCentral Sierra Nevada
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Quick report

Cracking
widespread
Collapsing
widespread

Throughout my tour the wind and snow was pretty consistent and sustained throughout the day. There was about 10cm (4")  of new snow on top of a 3cm rain crust from 12-18 rain event, this produced widespread punchy conditions all the way up to 9000'. ( this was the highest elevation I got to). Wind transportation was intense along ridgelines and open areas loading leeward sides of E-NE-N-NW facing slopes. Coverage is building but a lot of obstacles still are not buried.

There is a widespread breakable rain crust just under the surface (~10cm) that was collapsing and cracking on every step. I was also able to trigger small wind loaded features and even a larger cornice with one kick.

Weather

Air Temp
Below Freezing above 8000'
Cloud Cover
obscured
Wind Loading
intense
Rain Elevation
8000'
Recent Snowfall
10cm
Snow Avail For Transport
moderate amounts

Overall stormy conditions with strong SW-W winds and S-1 snowfall.

Snowpack

In my pit profile I found strong over weak layers in general. A mixed bag of rain crusts and faceted snow below the surface with 10cms on new snow on the surface. The rain crusts are all pretty weak and easily breakable. Faceted snow within the snowpack all seems to be healing as each layer was moist and compressible and not showing failure in my ECTs. I did have some ECTNs but clearly no propagation.  With that said, during my CTs I did have some planar results but very resistent to slide off the column. They all failed below each crust with not much movement.