avalanche incident viewer

Incident Details

Date
2012-04-25
Location
Castlegar - Norns Range
Location Description
Ladybird/Norns drainage North of Castlegar
Province
BC
Mountain Range
Coordinates
0 0
Elevation
2100m
Activity
Snowmobiling
Involvement
0
Injury
0
Fatality
0
Description
We were taking a lunch break at the beginning of the "slides" up Norns creek when the slide came down across the valley from us about 700 metres away. We could see many trees swaying and being blown over as well. It appears to have started from a cornice dropping and did create a small slab avalanche that had what I estimated to be a 2-3metre fracture. It also cleared down to rock about 1/2 way down the slope. The small part of the debris field we saw was full of trees and at the end of the runout it was still at least 3 metres deep. Further up through the trees, the debris appeared to be a much greater depth.
Date/time Size Type Trigger Elevation Aspect Slab width Slab thickness
2012-04-25 11:00 4 L Nc 2100 ne 250m -
Present Temp Max Temp Min Temp 24hr Trend Wind Speed Wind Direction Sky Condition Precipitation Type & Intensity
15 - - Rising U W BKN None
Weather comment
This slide surprised us as it was still reasonably early in the day and hadn't really warmed up considerably yet. We expected slides later as the day warmed up but not so early when it was cool still
Snowpack 24hr Snow Storm Snow Storm Date
- 0 0 -
Snowpack comment
Document Date Title Source
2012-04-25 Slope Author
2012-04-25 Slab fracture after Cornice dropped Author
2012-04-25 Small part of debris field Author
2012-04-25 Part of the debris field Author
2012-04-25 Bare Rock Face Author

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