Island Park

Hotel/Yale Creek

Wednesday we were on snowbikes in the Hotel/Yale Creek drainages. We beat the snow up pretty hard on steep short slopes with no signs of instability. There was approximately 1" to 1.5" of new snow within the last week that could have easily been surface frost, frozen fog or just light snow. The weather was mild with clear skies to partly cloudy skies and a minimal amount of new snow falling. There is about 3 layers in the snow pack, the surface was light for the top 1/3, getting ice and crusty on the south slopes. We could hear the ice on the skies. The middle third of the snow pack is pretty consolidated, and the bottom snow pack with the temperature variance with the last weeks of high pressure systems seems to be falling apart and faceting. What we have seen in the last couple of weeks is a pretty solid base, however, with the longer high pressure systems, it appears to be coming apart down low towards the ground. We have seen this in many places in Eastern Idaho lately. Many of the streams are open in the big drainages due to the lack of snow. Places to cross can be challenging. 

Activity
Snowbiking
Date
Email
brian.dilenge@idpr.idaho.gov
Latitude
44.51
Location (from list)
Title of your observation
Hotel/Yale Creek
Longitude
-111.45
Observer Name
Brian DiLenge
Phone
2085257121
Region
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Chris Hericks, snow ranger on Beaverhead Deerlodge NF, points to the lower of two surface hoar layers. We are finding similar layering throughout our entire forecast area. The top 18" of the snowpack is weak and will quickly become unstable when it snows. Photo: GNFAC

Lionhead Range, 2022-02-10

Good stability outside Island Park

From the Gallatin NF Avalanche Center:

We rode up Yale Creek, then to the Mt. Jefferson Bowl, then to Tin Cup Pass north of Mt Raes. We  saw no avalanche activity or signs of instability. It was calm out and the wind was not moving snow. The debris piles on Mt. Jefferson were from an avalanche cycle the end of December and they are still visible. January has been dry! 

Our stability test did not break on the surface hoar . There needs to be more snow on top of it. Possibly on a wind drifted area, but in general, the stability is good until we get more snow. 

Activity
Snowmobiling
Date
Email
mtavalanche@gmail.com
Latitude
44.55
Location (from list)
Title of your observation
Good stability outside Island Park
Longitude
-111.53
Observer Name
Doug Chabot
Phone
406-587-6984
Region
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