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Eastern Sierra Avalanche Center

Professional Observation

       

Basic Information

Observation Details

Observation Date:
April 3, 2022 - April 3, 2022
Submitted:
April 3, 2022
Observer:
Geoff Unger | Key Observer
Zone or Region:
Mammoth Lakes
Location:
Lower Santiago Bowl - Weather Conditions and Significant Burnout

Signs of Unstable Snow

Recent Avalanches? 
None Observed
Cracking? 
None Experienced
Collapsing? 
None Experienced

Snow Stability

Stability Rating: 
Good
Confidence in Rating: 
High
Stability Trend: 
Steady

Key Points

Warming was muted today with morning cloud cover then heavy solar input mid day and building clouds again in the afternoon.  The sky began Broken in the morning and cleared to Few clouds in the middle of the day then back to Scattered and maybe even Broken with an hour or two of direct radiation.  See photo of afternoon cumulus cloud growth.

For avalanche problems we saw isolated surface instability that was only underneath the skis.  See video.

Snow coverage continues to deteriorate, especially in areas around existing snow fields and thin areas around trees, rocks and cliffs.  E-SE-S-SW-W aspects are the most common areas to see this deterioration of snow coverage  Transitional snowpack conditions exist on NW-N-NE aspects.  There is a time in our spring season when we see these aspects consolidate and warm on the surface without being punchy and unsupportable.  This will probably start to occur in the next week or so with continued warm temperatures but we aren’t there yet.

Media

Advanced Information

Weather Summary

Cloud Cover:
Mostly Cloudy
Temperature:
5.5
Wind:
Light , SW

Field Weather Observation:

Location Lower Santiago Bowl

Time 1500

Elevation 10140

Aspect SSW

Sky SCT

Tair/surf 5.5/-1.0

Precip NO

Wind L gusting M from SW

Blow Snow None

Surface Form/Size MFcr 2.0

HST 0cm

HS 85

Pen Boot/Pen Ski 5cm/1cm

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