Observation type
Snowpack

Observer
Stephanie Robertson

Keep me anonymous if published
no

Location (general area)
Angelus Oaks, San Bernardino Peak Trail

Latitude

Longitude

Date (yyyymmdd)
20260221

Time
0930

Road conditions to area

Temperature
35F

Sky
clear (no clouds)

Wind speed
Calm (smoke rises vertically)

Wind direction
not observed

Wind direction in degrees

Slope aspect
North West

Aspect in degrees

Slope angle
25

Elevation
5820

Snow depth
43cm

Boot/ Ski penetration

Precipitation
None

Activity, recent avalanches
No

Brief description

Whumphing noises, shooting cracks. collapsing
no

Rapid warming
yes

Obvious avalanche path
no

Terrain trap
no

Comment
Observer: Stephanie Robertson
Date/Time: 2/21/26, 0930
Location: Angelus Oaks, South of San Bernardino Peak Trail
Elevation: 5820’
Aspect: NW 
Slope angle: 25 degrees
Air temp: 36 F
Sky: clear
Objective: Assess local snowpack

Snowpack structure:
0-3 cm P+ ice crust 
3-15 cm 4F soft sugary layer (compression observed during CT)
15-17 cm 1F 
17-21 cm 2F soft layer
21-25 cm K ice
25-33 cm 2F soft layer
33-43 cm 3F+ soft layer

Stability Tests and Observations:

Boot/snowshoe test: No failures produced.

Hand pit: Additional weak layer after last storm easily pulled off in a 10 cm cohesive block.

Hand hardness profile: Multiple soft layers sandwiched between harder layers, significant weak layer near top after last storm.

Compression test (CT): CT8M @ 15cm (4F slab). Complete failure of this slab CT4H

Publish this observation
Yes I would like this observation Published
 

CT

hand test