Avalanche

Mount Brown Lookout trail

Sarah WilliamsFlathead Range & Glacier NP
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Quick report

We visited Glacier National Park to get a better sense of new snowfall and at what elevation the December 5th rain extended to.

  • Access is challenging. We boot-packed up to 6500 feet via the trail (no skiing). 
  • At 6500 feet, total snow depth was 60 to 55 cm.
  • 20 cm (about 8 inches) of new unconsolidated snow, above a 3-inch semi-supportable crust.
  • Below the new snow, the snowpack was moist to wet, verifying that the recent atmospheric river soaked this area.
  • We did not observe a layer of surface hoar that has been observed in other zones of our forecast area.
  • The good news is that our lower snowpack will likely strengthen as the moist/wet snow freezes overnight.
No cracking or collapsing was observed. We did not observe recent avalanches.

Weather

Air Temp
below freezing
Cloud Cover
broken
Wind Loading
none
Recent Snowfall
20 cm
Snow Avail For Transport
moderate amounts

A calm day with broken cloud cover that limited our view of surrounding peaks.

Snowpack

We had no propagating results in our snowpit. New snow is unconsolidated.

  • 6500 feet, SW, HS: 55 cm, ECTX
  • Multiple hand digs revealed that below the new snow, there is a pencil-hard, 3-inch semi-supportable crust, that is intermittent with the area's downfall, mixed with moist facets, and wet snow.
  • Below 5500 feet, the snow coverage is thin.

Avalanche

No avalanches were observed.