Manto nevoso

Lower Sun Bowl

Hayden MacArthur-entry. With Lael Cashan + Christian Jordan)Mount Shasta
Vedi sulla mappa
Foto dell’osservazione 1Foto dell’osservazione 2Foto dell’osservazione 3Foto dell’osservazione 4Foto dell’osservazione 5Foto dell’osservazione 6Foto dell’osservazione 7Foto dell’osservazione 8

Quick report

We observed active wind transport and significant wind scouring above and near treeline. Sublimation was noted off ridge top features. In lee slopes we traversed, there were no significant signs of instability. None observed

Weather

Air Temp
28
Cloud Cover
broken
Wind Loading
moderate
Snow Avail For Transport
moderate amounts

The day started sunny with increasing cloud coverage. It ended completely cloudy with a freezing fog.

Snowpack

At 8200', we dug a pit on a SE aspect to assess the recent storm snow. We observed a several centimeter thick wind slab (1F) on top of recently deposited storm snow (F -> 4F), which rested on top several prominent crusts starting 80 cm down. In the areas we traveled and in our test pit, no reactive wind slabs were found.