Avalanche

Lake McDonald

Jackson GeorgeFlathead Range & Glacier NP
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Observation photo 1Observation photo 2Observation photo 3

Quick report

Mostly clear skies offered vantage of the avalanche country surrounding the McDonald Valley. Expected to see a good bit of recent activity, but only observed one slide on Mount Cannon. Recent wind blown snow may have erased the evidence of others from this cycle. Established a new Beacon Checker site at the Lake McDonald Lodge parking area/ Sperry Trailhead/ Going-to-the-Sun Road access. We thank our partners, Flathead Nordic Backcountry Patrol, for their donation and maintenance of this equipment in the park this winter. We hope that this will serve as a convenient reminder to all backcountry users to check their party's transceivers prior to entering the avalanche country accessed from Lake McDonald. Spotted a recent avalanche on the south face of Mount Cannon.

Weather

Air Temp
-25
Cloud Cover
few
Wind Loading
light
Rain Elevation
0
Recent Snowfall
2
Snow Avail For Transport
moderate amounts

Clear, Calm, and Cold. Winds were calm on the valley floor and appeared to be light up high in this portion of the forecast area. Minimal active wind transported snow observed today on the high peaks of this valley. However the south facing slopes of Mount Stanton were visibly rippled from afar and textured from recent winds this weekend.

Snowpack

Roadside observation. 22cm in open areas on the valley floor (3100'). 10cm in forested areas at this same elevation. weak and faceted from the recent arctic weather.

Avalanche

Size
D1.5 R1
Type
L
Aspect
S
Trigger
N
Elevation
7300 ft

The observed avalanche is expected to have run sometime during the most recent storm. Generally appeared to be a dry loose avalanche, but also seemed as though there may have been a faint crown near the top of the bowl/base of the summit cliffs. Poor image quality.