Bishop Creek-Bishop Bowl snow conditions

Upper Bishop Bowl
Submission Info
Monday, January 21, 2019 - 4:45pm
Red Flags: 
Recent loading by new snow, wind, or rain
37° 14' 22.1352" N, 118° 37' 56.6868" W
Snowpit Observations
More detailed information about the snowpack: 

Had ambitions of getting higher in elevation today to check coverage and conditions in the Bishop Bowl area. After a rather pleasant morning, the clouds and snowfall socked in pretty quickly at 100pm reducing visibility drastically and temperatures plummeted. It was time to get off the mountain quickly when we had a window of visibility, so unfortunately did not have time to perform extensive stability tests.  Did some transects probing in the upper starting zone of the main skiers right line near the top of Bishop Bowl (Aspect 17degN, 35slope, 11700ft) . Snow surface conditions in general were pretty good with 4"-12" depending on aspect and shelter. The trees and gullies were holding good wind pressed powder while more exposed areas were variable and wind scoured.

HS: 135cm average (consolidated slab over 40-50 cm of facets on ground)

HNS: 15-20cm

Hand Shear test produced 20cm deep surface slabs that were resistant planar and sheared under a moderate tug.

Throughout the tour there was obvious wind slab development from 10-20cm in depth on N & E aspects and were well bonded to old snow surfaces. Did not observe any collapsing or shooting cracks on test slopes. Did not see any recent avalanche activity. Ski cut lower steeper 30deg+ wind loaded slopes primarily on northeastern aspects exiting the Bishop Bowl plateau and there was little to no action, a few minor cracks, but no downward movement of slabs or propogation. We stayed off steeper terrain in the upper elevation due to lack of visibility and concern of deeper windslab potentially up high.

Snowpack photos: 
Weather Observations
Blowing Snow: 
Cloud Cover: 
100% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
Less than 1 in. per hour
More detailed information about the weather: 

Sunny start to the day, but by 1200 the clouds progressed from the north and started enveloping the high country. Winds were completely calm up to 1130 and then lightly blew for the rest of the afternoon from the north. While eating lunch and transitioning at the top of our run at 11700ft it was 13F and we got cold after the long skin up today. 

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