Date of Observation: 12/10/2021
Name: Eric Murrow Ben Pritchett
Zone: Northwest Mountains
Route Description: Kebler Pass
Observed avalanche activity: Yes
Avalanches: Observed one natural soft slab avalanche on a northwest-facing slope at 10,150′. Visibility was socked in, so very little opportunities to see recent avalanche activity.
Weather:
- Ridgeline Wind Speed: 20-30 mph
- Ridgeline Wind Direction: W
- Wind Loading: Moderate
- Temperature: 12 F
- Sky Cover: Obscured
- Depth of New Snow: 27 in
- Depth of Total Snow: 51 in
- Most Significant Precip Rate: S2 – 2 cm/hr
- Weather Description: One brief bit of broken skies around 10am, then it socked back in. Snowed S1-3 throughout the day without any breaks from 10am-3pm. Measured 51″ of storms snow which held 4.5″ snow water equivalent at Kebler Pass.
One brief bit of broken skies around 10am, then it socked back in. Snowed S1-3 throughout the day without any breaks from 10am-3pm. Measured 51″ of storms snow which held 4.5″ snow water equivalent at Kebler Pass.
Snowpack: Very deep, right-side-up storm resting on a very weak faceted base. Collapsing was rampant, but muffled. No cracking seen. ECT’s broke while isolating the block on size 10-15mm surface hoar, then gouged into facets.
Photos:
[/gravityforms]
[[accordion id=”my-accordion”]
[accordion_item title=”Avalanche Report #1″ parent_id=”my-accordion” open=”false”]Estimated avalanche date: 12/10/2021
Number of Avalanches: 1
Location
Location: Other: Add text
Location Specific: Near Y on Kebler Pass
Start Zone Elevation: BTL: Below Tree Line
Aspect: NW
Characteristics
Trigger: Natural
Trigger modifier:
Type: Soft Slab
Failure Plane:
Size
Relative Size: R2 small
Destructive Size: D1.5
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
Involvements
# of people caught:
# of partial burials:
# of full burials:
Additional comments:
[/accordion_item]
[/accordion]]
5066