CAIC: Colorado Avalanche Information Center BC Zone Observation Report

Friday, February 16, 2018 at 12:00 AM
Aspen

Details

Location

Weather

Avalanches

  Date Location/Path # Elev Asp Type Trig SizeR SizeD
View  2018/02/16  †  Richmond Hill   1   <TL   NE   SS   N   R3   D3 
View  2018/02/16  †  Richmond Hill   1   <TL   N   SS   AS / r   R2   D2 
View  2018/02/16  †  Maroon Creek   1   TL   NW   U   N   R3   D2.5 
View  2018/02/16  †  Richmond Hill   3   <TL   NW   SS   AS / c   R1   D1.5 
View  2018/02/16  †  Maroon Bells-Snowmass Wilderness   2   >TL   NE   U   N   R2   D2.5 
View  2018/02/16  †  Richmond Hill   3   <TL   N   SS   AS / c   R1   D1.5 
View  2018/02/16  †  Maroon Bells-Snowmass Wilderness   1   >TL   E   U   N   R2   D2.5 

Media

Images

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Figure 1: Orange line marks the crown of a remotely-triggered avalanche in Black Diamond Bowl, Richmond Ridge. Arrow marks approximate trigger point. Slope to looker's right cracked but did not slide. Easterly, below treeline. 2-16-18
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Figure 2: Looking at the crown of a remotely-triggered avalanche, BlackDiamond Bowl, Richmond Ridge. The lower angled slope cracked but did not slide. 2-16-18.
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Figure 3: McFarlane's Bowl, Richmond Ridge. Orange line marks part of crown from 2-16-18 natural avalanche. 2-14 slide triggered remotely from ridge above.
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Figure 4: Part of the crown of a natural avalanche in McFarlane's Bowl, Richmond Ridge. 2-16-18.
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Figure 5: Part of the debris field from a lage natural avalanche in McFarlane's Bowl, 2-16-18. Orange line marks secondary fracture on flank; blue marks exit road.
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Figure 6: By late afternoon, west winds had picked up and were drifting and blowing the storm snow on exposed ridges. 2-16-18.
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Figure 7: Part of the crown of a large natural avalanche in Desolation Row, just south of Maroon Bowl, adjacent to Aspen Highlands. 2-16-18
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Figure 8: Deep fracture along the flank of a natural avalanche in McFarlane's Bowl, Richmond Ridge. 2-16-18