Date of Observation: 04/01/2023
Name: Evan Ross
Zone: Southeast Mountains
Route Description: Mt Emmons. Redwell Tour.
Observed avalanche activity: Yes
Avalanches: A wide propagating slab on an easterly aspect into Redwell Basin. 11,600ft. D2. Avalanche debris looked soft so I’d estimate it ran yesterday during the storm.
A fresh cornice fell in redwell basin, probably ran this morning or at the end of the storm. D2.
A fresh cornice fell in the Climax Chutes, probably ran this morning or at the end of the storm. D1.5
Roller balls and some small loose wet avalanches around the solar half of the compass.
Weather: Clear sky, rising temps. Calm winds down low and light winds in the alpine.
Snowpack: At 10,800ft on the South side of Mt Emmons the recent HST was 35cm. We climbed the south side of Mt Emmons while the snow was just warming, then skied dry snow of the West and north sides. By the time we hit OBJ and changed both aspects and elevation the snow surface was wet. This tour was for good snow and avoided the avalanche problems.
Photos:
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Widely propagating slab. East, 11,600ft.
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Fresh cornice fall in the Climax Chutes.
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Another fresh cornice fall into Redwell Basin.
Estimated avalanche date: 04/01/2023
Number of Avalanches: 1
Location
Location: Mount Emmons
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: NE
Characteristics
Trigger: Natural
Trigger modifier:
Type: Cornice
Failure Plane:
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:
Estimated avalanche date: 04/01/2023
Number of Avalanches: 1
Location
Location: Mount Emmons
Location Specific:
Start Zone Elevation: NTL: Near Tree Line
Aspect: NE
Characteristics
Trigger: Natural
Trigger modifier:
Type: Cornice
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:
Estimated avalanche date: 03/31/2023
Number of Avalanches: 1
Location
Location: Other: Add text
Location Specific:
Start Zone Elevation:
Aspect: E
Characteristics
Trigger: Natural
Trigger modifier:
Type: Soft Slab
Failure Plane: Unknown
Size
Relative Size: R3 medium
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:
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