Ruby natural avalanche – submitted via email

CBAC March 23, 2023CBAC Observations

Date of Observation: 03/23/2023
Name: Dave Kozlowski

Zone: Northwest Mountains
Route Description: Ruby Peak

Observed avalanche activity: Yes
Avalanches: natural avalanche on Ruby Peak.
Weather:
Snowpack:

Photos:

Avalanche Report #1

Estimated avalanche date: 03/23/2023
Number of Avalanches: 1

Location

Location: Lake Irwin (Robinson Basin, Owen, Ruby)
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: SE

Characteristics

Trigger: Natural
Trigger modifier:
Type: Hard Slab
Failure Plane: Old snow

Size

Relative Size: R2 small
Destructive Size: D2.5
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):

Involvements

# of people caught:
# of partial burials:
# of full burials:

Additional comments: Shared by megan P early in AM but poor photo. Believed to have ran after daybreak 3/23

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