Date of Observation: 12/16/2022
Name: Zach Guy
Zone: Northwest Mountains
Route Description: Viewed from Mt. Baldy
Observed avalanche activity: Yes
Avalanches: Adding more avalanches to the previous observation. Ruby, Afley, Peeler Peak, Treasury, and Gothic. The Gothic slide may have run today, the others ran sometime in the past 4 days.
Photos:
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This slide off the west side of Gothic may have run today.
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Peeler Peak. Broad avalanche across north facing bowl. Couldn’t see runout.
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Ruby Peak, northeast face
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Afley Peak, northeast face
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Repeat offender on Treasury.
Estimated avalanche date: 12/16/2022
Number of Avalanches: 1
Location
Location: Gothic Mountain
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: W
Characteristics
Trigger: Natural
Trigger modifier:
Type: Hard Slab
Failure Plane: Old snow
Size
Relative Size: R1 very 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: I did not see this crown mid-morning when we rode by it, but I saw it around sunset. Maybe I missed it this morning, or maybe it ran today.
Estimated avalanche date: 12/14/2022
Number of Avalanches: 1
Location
Location: Lake Irwin (Robinson Basin, Owen, Ruby)
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: 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: Ruby Peak N/NE face. Ran sometime in past few days, date is estimated.
Estimated avalanche date: 12/15/2022
Number of Avalanches: 1
Location
Location: Oh-Be-Joyful Basin
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: N
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: Peeler Peak, middle bowl below summit. Could only see the start zone (which failed broadly), so size is best guess, as is failure date.
Estimated avalanche date: 12/13/2022
Number of Avalanches: 2
Location
Location: Oh-Be-Joyful Basin
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: R1 very 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: Afley NE face. Size and failure date estimated.
Estimated avalanche date: 12/14/2022
Number of Avalanches: 1
Location
Location: Upper Slate (Purple, Yule Pass, Paradise Divide)
Location Specific:
Start Zone Elevation:
Aspect: E
Characteristics
Trigger: Natural
Trigger modifier:
Type: Hard Slab
Failure Plane: Unknown
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: Treasury Rock Creek. Repeat offender, verified with photos that it is a different crown that the one observed 12/7
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