Regional Discussion Forums
Forums » Regional Discussion Forums » North Columbia » Avalanche Incident Report: 4/10/2009 : Clemina Creek near Valemount

Avalanche Incident Report: 4/10/2009 : Clemina Creek near Valemount

rated by 0 users
This post has 0 Replies | 0 Followers

Top 10 Contributor
Posts 1,158
Reply
Forecaster Posted: 04-11-2009 4:41 PM
Canadian Avalanche Centre - Avalanche Involvement Report

Avalanche Involvement Report

 Canadian Avalanche Centre
This report was submitted to the CAC by British Columbia Coroner’s Service in the interest of public safety.
The CAC makes no claim as to its authenticity or accuracy. Use and interpret at your own risk.
DATE, TIME AND LOCATION
Date/Time: 2009-04-10 14:00
Description: Clemina Creek near Valemount
Coordinates: ()
Mtn Range: Monashee Mountain Range Province: BC
GROUP INFORMATION
Type: Activity:
Size:
AVALANCHE INFORMATION
Number: 1 Size: Size class 3 Type: Slab avalanche
Trigger: Ma (Highmarking)
Dimension: 150m wide; ran for 300m; average slab depth of 100cm.
Failure Pl.: Old -
Starting Zone: Location: Alpine at approx. 2400m.
Character: N; 40 degrees; Cross-loaded Slope; Series of Convex Rolls.
Thin rocks protruding
Comment: Alpine Slope, exposed rock, mid slope convexity. Uneven distribution of snowpack. Deep gully at immediate base of slope
INVOLVEMENT INFORMATION
Number of people involved: None.
Number of people injured: 1 deceased.
WEATHER AND SNOWPACK INFORMATION
Weather: precipitation in last 72 hrs - nil Temperature last 24 hrs -3 to +5 Wind within last 24 hrs SW light to moderate Wind within last 72 hrs SW calm to light
Snowpack: Minimal overnight freeze, daytime warming
ADDITIONAL COMMENTS
Snowmobilers highmarking for several hours one at a time. Victim took a slightly different line. Slope avalanched on second pass, triggering near apex of high mark. Highmark and crown roughly at same elevation. Victim carried into gully. Deep burial (2 metres to head). Victim found with transceiver and probe by companions.
ATTACHMENTS
1. Attach.: CAA1.jpg
Clemina slope
2. Attach.: CAA2.jpg
Clemina slope 2
3. Attach.: CAA3.jpg
clemina slope 3
Date and Time of Report: 2009-04-11 15:49
The CAC Forecaster Team thanks the observers for
their contribution to avalanche safety in Canada!
Page 1 of 1 (1 items) | RSS