Avalanche

Lake McDonald

Rob MillspaughFlathead Range & Glacier NP
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Observation photo 1Observation photo 2Observation photo 3Observation photo 4Observation photo 5Observation photo 6

Quick report

Drove along the Northern Swan Range and up to Lake McDonald:

  • Recent activity in the northern Swan Range consisted of many small to large (D1-2) loose wet slides on S-SW-W-NW
  • Recent activity in the Lake McDonald area also included large (D2-2.5) slab avalanches on S and SW
  • All activity is assumed to have occured during the heat of the day on 3/15
Large (D2-2.5) slab avalanches on S and SW. Small to large (D1-2) loose wet S-SW-W-NW.

Weather

Air Temp
50
Cloud Cover
clear
Wind Loading
none

Avalanche

Size
D2 R2
Count
2
Aspect
SW
Trigger
N
Elevation
7000 ft

Difficult to determine exact number of slides. Size Range D2-D2.5.