Date of Observation: 05/26/2022
Name: Zach Guy
Zone: Southeast Mountains
Route Description: Traveled on N and NE aspects of Gothic Mtn, to 11,900′
Observed avalanche activity: Yes
Avalanches: A couple of large wet slabs on the north side of Gothic ran during last week’s heat wave, along with what looks like a large wet avalanche near Daisy Pass. Also a few wet loose up to D1.5 in Copper Creek.
Traveled over fairly extensive tree damage on a previously undocumented slide presumably from the holiday cycle.
Weather: Sunny, light breeze.
Snowpack: Drainage through the snowpack is well established here, even on northerly aspects. Snow surfaces are old, dusty, and sun-textured, with very thin pockets of white snow from the past storm. Given how mature the surface is, it seems that wet loose concerns are isolated to very steep, rocky slopes. Traveled on a few suspect slopes that were past prime and couldn’t get anything to move, despite shin-deep ski and knee-deep boot pen near shallow rocky areas. Cornices still pose a threat above some slopes.
Photos:
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A pair of large wet slabs on Gothic. You can also make out a large wet debris pile out by Daisy Pass in the background
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Tree damage, presumably from the holiday cycle
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Snow surfaces on northerly aspects.
Estimated avalanche date: 05/18/2022
Number of Avalanches: 2
Location
Location: Gothic Mountain
Location Specific:
Start Zone Elevation: NTL: Near Tree Line
Aspect: N
Characteristics
Trigger: Natural
Trigger modifier:
Type: Wet Slab
Failure Plane: Old snow
Size
Relative Size: R2 small
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: Likely failed sometime during 5/15-5/19 heatwave
Estimated avalanche date: 05/18/2022
Number of Avalanches: 1
Location
Location: Poverty Gulch (Pittsburg, Augusta, Baxter Basin)
Location Specific:
Start Zone Elevation: NTL: Near Tree Line
Aspect: N
Characteristics
Trigger: Natural
Trigger modifier:
Type: Unknown
Failure Plane: Old snow
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: Seen from a distance, large wet avalanche. Debris pile was broad enough that I’m guessing wet slab. Likely failed sometime during 5/15-5/19 warmup.
Estimated avalanche date: 12/26/2021
Number of Avalanches: 1
Location
Location: Gothic Mountain
Location Specific:
Start Zone Elevation: NTL: Near Tree Line
Aspect: NE
Characteristics
Trigger: Natural
Trigger modifier:
Type: Soft Slab
Failure Plane: Old snow
Size
Relative Size:
Destructive Size: D3 – could destroy a car, wood-frame house, or snap trees
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
Involvements
# of people caught:
# of partial burials:
# of full burials:
Additional comments: Dozens of downed medium-sized trees below the northernmost path on Gothic that feeds into East River, above pt ~11950. The crown of this slide was not visible during our 1/2 heli flight, so I’m guessing this ran a few days earlier in the storm, sometime during Christmas week.
Estimated avalanche date: 05/16/2022
Number of Avalanches: 3
Location
Location: Copper Creek
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: NW
Characteristics
Trigger: Natural
Trigger modifier:
Type: Wet Loose
Failure Plane: Old snow
Size
Relative Size: R1 very 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: Likely failed sometime during 5/15-5/19 heatwave
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