Avalanche

Hungry Horse to Marias Pass

Mark Dundas
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Observation photo 1Observation photo 2Observation photo 3Observation photo 4Observation photo 5Observation photo 6Observation photo 7

Quick report

I took a windshield tour to familiarize myself with a new FAC camera, rest my bones, and take advantage of great visibility to search for avalanches.

  • I noted substantial evidence of wind-transported snow at mid and upper elevations. However, I could only locate the crown of one soft slab and one substantial cornice fall. I did note multiple locations where chunks of cornice had broken off during the 12/17-18 intense wind event. These were small and inconsequential.
  • Great views of large terrain features, such as Nyack Mountain's northeast face and Mt Stanton's southwest face, yielded no confirmation of slab avalanches. 
  • I assume multiple slides occurred throughout the Flathead Range and southern Glacier Park, but I either did not have a view of that terrain, or these avalanches were covered by wind-blown snow. 
  • Highway traffic was substantial and limited my observations of various terrain features.

 

Weather

Air Temp
30
Cloud Cover
few
Wind Loading
light
Rain Elevation
4000
Recent Snowfall
1
Snow Avail For Transport
small smounts

It was a pleasant day of light winds, clear skies, and sunshine.

Avalanche

Size
D2 R2
Type
SS
Count
2
Aspect
E
Trigger
N
Elevation
7400 ft

This avalanche was viewed from several miles away at Marias Pass. The crown was mainly blown in, and it was difficult to determine its characteristics. The slab thickness, vertical fall, and width are estimated. A cornice fall did not appear to trigger this slide, but it could have been possible.