Mcdermott

Incident

kaitclement · Feb 13, 2021 · Lizard

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Quick report

Weather
cold, sunny
Ride Type
denseTrees, openTrees, alpineSlopes
Stayed Away
cutBlocks
Riding Quality
good
Snow Conditions
powder
Avalanche Conditions
avalancheConditionSlab, avalancheConditionSound

Weather

Max Temp
-15
Min Temp
-25
Wind Speed
windSpeedLight
Blowing Snow
none
Sky Condition
clear
Precipitation Type
none

Snowpack

Depth
200
Obs Type
summary
Site Aspect
W, N
Test Fracture
resistant
Site Elevation
1900
Test Initiation
moderate
Cracking Observed
1
Site Elevation Band
tln
Surface Conditions
variable
Whumpfing Observed
1
Test Failure Layer Crystal Types
surfaceHoar

Surface hoar layer is still easily triggered.

Avalanche

Run Length
100
Slab Width
40
Trigger Type
skier
Avalanche Size
1.5
Slab Thickness
30
Trigger Sub Type
accidental
Start Zone Aspect
N
Vegetation Cover
denseTrees
Start Zone Incline
38
Avalanche Character
persistentSlab
Number Of Avalanches
2-5
Start Zone Elevation
1900
Avalanche Observation
12to24hrsAgo
Weak Layer Crystal Type
surfaceHoarAndFacets
Start Zone Elevation Band
tln
Avalanche Occurrence Datetime
2021-02-12T15:00:00

Two skier accidentals on the surface hoar layer Dug a pit on the west aspect the next day and results showed the same weak layer. CTM11 was a resistant planer.

Incident

Group Size
5
Terrain Trap
trees
Group Activity
skiing
Number Involved
2
Snow Depth Trigger Point
deep
Terrain Shape Trigger Point
convex
Number Partly Buried Able Breathing
2