Date of Observation: 04/07/2023
Name: Zach Guy
Zone: Northwest Mountains
Route Description: Scarp Ridge to Peeler Peak and out OBJ basin, traveling on various aspects to 12,200′
Observed avalanche activity: Yes
Avalanches: Several more large cornice falls that ran sometime in the past couple of days. An uptick in small wet loose activity today, generally on the southern half of the compass at higher elevations and the most action below treeline on east to northeast aspects. We skier triggered a couple of small wet loose slides on northeast aspects below treeline.
Weather: Warm, clear all morning with cloud cover increasing this afternoon.
Snowpack: About 6″ of settled storm snow over the dusty storm interface. The snow became wet on all but NE to NW aspects N/ATL and due north BTL. A pit on a SE aspect NTL in Peeler Basin produced propagating results about 2 feet deep down on the 3/30 interface, a faceted crust. There are several crusts in the upper 3 feet of the snowpack that could pose a concern for wet slab issues if we see a rapid influx of meltwater next week. Currently only the recent storm snow is wet and the 4/3 crust remained frozen except for low elevation southerlies.
Photos:
[[accordion id=”my-accordion”]
[accordion_item title=”Avalanche Report #1″ parent_id=”my-accordion” open=”false”]Estimated avalanche date: 04/06/2023
Number of Avalanches: 1
Location
Location: Peeler Basin
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: N
Characteristics
Trigger: Natural
Trigger modifier:
Type: Cornice
Failure Plane:
Size
Relative Size:
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: Above Peeler Lakes area. Failure date sometime in the past 3 days.
[/accordion_item]
[accordion_item title=”Avalanche Report #2″ parent_id=”my-accordion” open=”false”]
Estimated avalanche date: 04/06/2023
Number of Avalanches: 1
Location
Location: Lake Irwin (Robinson Basin, Owen, Ruby)
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: E
Characteristics
Trigger: Natural
Trigger modifier:
Type: Cornice
Failure Plane:
Size
Relative Size:
Destructive Size: D2 – could bury, injure, or kill a person
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
Involvements
# of people caught:
# of partial burials:
# of full burials:
Additional comments: Owen/Purple Saddle. Failure date sometime in the past 3 days.
[/accordion_item]
[accordion_item title=”Avalanche Report #3″ parent_id=”my-accordion” open=”false”]
Estimated avalanche date: 04/06/2023
Number of Avalanches: 1
Location
Location: Oh-Be-Joyful Basin
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: SE
Characteristics
Trigger:
Trigger modifier:
Type: Cornice
Failure Plane:
Size
Relative Size:
Destructive Size: D2 – could bury, injure, or kill a person
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
Involvements
# of people caught:
# of partial burials:
# of full burials:
Additional comments: Richmond
[/accordion_item]
[accordion_item title=”Avalanche Report #4″ parent_id=”my-accordion” open=”false”]
Estimated avalanche date: 04/07/2023
Number of Avalanches: 7
Location
Location: Peeler Basin
Location Specific:
Start Zone Elevation: BTL: Below Tree Line
Aspect: NE
Characteristics
Trigger:
Trigger modifier:
Type: Wet Loose
Failure Plane: New/Old interface
Size
Relative Size: R1 very small
Destructive Size: D1- Relatively harmless to people
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
Involvements
# of people caught:
# of partial burials:
# of full burials:
Additional comments: 2xSkier triggered. 5x Natural
[/accordion_item]
[accordion_item title=”Avalanche Report #5″ parent_id=”my-accordion” open=”false”]
Estimated avalanche date: 04/07/2023
Number of Avalanches: 4
Location
Location: Peeler Basin
Location Specific:
Start Zone Elevation: NTL: Near Tree Line
Aspect: E
Characteristics
Trigger: Natural
Trigger modifier:
Type: Wet Loose
Failure Plane: Within storm snow
Size
Relative Size: R1 very small
Destructive Size: D1- Relatively harmless to people
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
Involvements
# of people caught:
# of partial burials:
# of full burials:
Additional comments: Peeler Peak
[/accordion_item]
[/accordion]]
6207