Date of Observation: 04/04/2022
Name: Zach Guy
Zone: Southeast Mountains
Route Description: Teocalli Mtn. Traveled mostly on southerly aspects to 13,200 ft.
Observed avalanche activity: Yes
Avalanches: Nothing new. A handful of small wind slabs and wet loose avalanches from last week, along with a number of previously undocumented large wet avalanches from the big warmup in late March, both wet slabs and gouging wet loose, D1.5-D2 in size.
Weather: Scattered cloud cover this morning gave way to few clouds by mid day. Cool temps and light ridgetop winds at noon.
Snowpack: No signs of instability on steep terrain. The recent snow, up 4″ to 6″ here, was redistributed by winds at higher elevations with localized drifts up to a foot thick that were unreactive to ski cuts. The snow is transitioning to almost-corn on south aspects and still dry powder on north. There was a dusting of snow yesterday that accumulated on melt-freeze crusts. That low density snow is starting to facet above the crust, but it was also getting cooked on sunny aspects.
Photos:
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Yesterday’s dusting of snow snow was metamorphosing to small grained facets above recent melt-freeze crusts. It was also getting baked on sunny aspects.
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A large wet slab that likely ran during the late March warmup. ESE aspect of White Mtn
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A large wet slab that likely ran during the late March warmup. E aspect in Twin Lakes Basin
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Several previously undocumented gouging wet loose avalanches from the warmup on WSW aspects in Twin Lakes Basin.
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Several previously undocumented gouging wet loose avalanches from the warmup on E aspects above West Brush Creek.
Estimated avalanche date: 03/27/2022
Number of Avalanches: 1
Location
Location: West Brush Creek
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: E
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: White Mtn. ESE aspect. Failure date is best guess
Estimated avalanche date: 03/27/2022
Number of Avalanches: 1
Location
Location: Middle Brush Creek (Pearl Pass Road, Cumberland Basin, Twin Lakes)
Location Specific:
Start Zone Elevation: NTL: Near Tree Line
Aspect: E
Characteristics
Trigger: Natural
Trigger modifier:
Type: Wet Slab
Failure Plane:
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: Peak 12934, Twin Lakes Basin. Failure date is best guess
Estimated avalanche date: 03/27/2022
Number of Avalanches: 1
Location
Location: Middle Brush Creek (Pearl Pass Road, Cumberland Basin, Twin Lakes)
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: W
Characteristics
Trigger: Natural
Trigger modifier:
Type: Wet Loose
Failure Plane:
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: Peak 12552, Twin Lakes Basin. WSW aspect. Failure date is best guess
Estimated avalanche date: 03/27/2022
Number of Avalanches: 2
Location
Location: Middle Brush Creek (Pearl Pass Road, Cumberland Basin, Twin Lakes)
Location Specific:
Start Zone Elevation: NTL: Near Tree Line
Aspect: W
Characteristics
Trigger: Natural
Trigger modifier:
Type: Wet Loose
Failure Plane:
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: Peak 12552, Twin Lakes Basin. WSW aspect. Failure date is best guess
Estimated avalanche date: 03/26/2022
Number of Avalanches: 4
Location
Location: West Brush Creek
Location Specific:
Start Zone Elevation: BTL: Below Tree Line
Aspect: E
Characteristics
Trigger: Natural
Trigger modifier:
Type: Wet Loose
Failure Plane: Old snow
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: Below Pt 11627 near standard West Brush creek crossing
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