Avalanche

Tunnel Snow station

blase reardonFlathead Range & Glacier NP
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Quick report

We sledded, skied to the Tunnel Ridge snow station to troubleshoot and repair the ongoing power issues. 

  • The height of snow at the station has dropped 30 inches over 7 days! 
  • Tracks from last Saturday and Sunday are still visible - often barely - at the snow surface.
  • Trees below about 6500 feet are completely clear of snow. Above that elevation, the trees have a few inches of new snow. 
  • The near-surface snow was unfrozen wet grains, mostly drained, and usually supportable on skis, though grabby. A lot of effort to get skis across the fall line on  our exit. 
  • We heard Varied Thrushes and had highly varied weather. See weather section.
  • Streams open and running to at least 5000 feet. 
  • Lots of debris from avalanches the past week. In the only drainage we could really see (Tunnel Creek), none of the slides were historic. 

After some splicing and zip-tieing, we got Tunnel operational. 

Media to follow 

Weather

Air Temp
40
Cloud Cover
obscured
Wind Loading
none
Rain Elevation
5500'
Recent Snowfall
1
Snow Avail For Transport
none

Highly variable. Rain showers, snow showers, snain showers, partly cloudy skies, ominous clouds, calm, moderate gusts - all sometimes in the same 10 minutes.

Snowpack

Wet. Wet very deep. Lots of runnels. A soft (4F), 1-cm thick crust at the surface above about 5500 feet. Many S-W slopes below 5000 feet are bare. 

Avalanche

Lots of debris in big fans/ runouts in Tunnel Creek, though nothing near the ends of the historic runouts. Most at bottom of track or mid runout. Most debris eemed to be from long-running Loose Wet avalanches, maybe some smaller glide cracks. Only saw on crown from a slab, though we only had brief views.