Date of Observation: 01/02/2022
Name: Zach Guy
Zone: Northwest Mountains
Route Description: Anthracite Creek and some Raggeds Wilderness that drains into North Anthracite Creek.
Observed avalanche activity: Yes
Avalanches: A few large to very large avalanches above Middle and North Anthracite Creeks. Not as much activity here, likely because most of the terrain is southerly in aspect.
Photos:
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[accordion_item title=”Avalanche Report #1″ parent_id=”my-accordion” open=”false”]Estimated avalanche date: 01/01/2022
Number of Avalanches: 2
Location
Location: Anthracite Creek (West side of Ruby Range, Marcellina)
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: SE
Characteristics
Trigger: Natural
Trigger modifier:
Type: Soft Slab
Failure Plane: Within storm 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: Probably large wind slabs. Near south side of Mt. Justice
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Estimated avalanche date: 12/31/2021
Number of Avalanches: 3
Location
Location: Anthracite Creek (West side of Ruby Range, Marcellina)
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: E
Characteristics
Trigger: Natural
Trigger modifier:
Type: Hard Slab
Failure Plane: Old snow
Size
Relative Size: R3 medium
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: 1x failed on E aspect on the south side of the Ant, above Middle Anthracite Creek. 2x near Ragged Peak, above North Anthracite Creek.
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Estimated avalanche date: 12/31/2021
Number of Avalanches: 2
Location
Location: Anthracite Creek (West side of Ruby Range, Marcellina)
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: NE
Characteristics
Trigger: Natural
Trigger modifier:
Type: Hard Slab
Failure Plane: Old snow
Size
Relative Size: R3 medium
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: 1x failed on NE aspects on the south side of the Ant, above Middle Anthracite Creek. 1x near Ragged Peak, above North Anthracite Creek.
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Estimated avalanche date: 12/31/2021
Number of Avalanches: 1
Location
Location: Other: Add text
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: R4 large
Destructive Size: D3.5
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
Involvements
# of people caught:
# of partial burials:
# of full burials:
Additional comments: Raggeds Wilderness. This is west of our forecast area, but I added it because it is one of the few deep slabs that failed onto a SE aspect. The slide actually wrapped from NE to E to SE, but the widest part of the crown was on SE.
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Estimated avalanche date:
Number of Avalanches:
Location
Location:
Location Specific:
Start Zone Elevation:
Aspect:
Characteristics
Trigger:
Trigger modifier:
Type:
Failure Plane:
Size
Relative Size:
Destructive Size:
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
Involvements
# of people caught:
# of partial burials:
# of full burials:
Additional comments:
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