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Date
Activity
Snowmobiling

Observation Details

 

 

Observation Date:

January 21, 2023 - January 21, 2023 

Submitted:

January 21, 2023 

Observer:

RRS - Kevin Allred 

Zone or Region:

Island Park 

Location:

Yale Creek (SSW) 

Signs of Unstable Snow

Recent Avalanches? 

 None Observed 

Cracking? 

 None Experienced 

Collapsing? 

 None Experienced 

Found a layer of near surface facets 25 cm from the surface not problematic now but with new snow coming this could become a layer of concern 

Snow Stability

Stability Rating: 

Good 

Confidence in Rating: 

 Moderate 

Stability Trend: 

Steady 

Bottom Line

The snow seems to be very stable found a MF crust 45cm / surface from a warming trend early in January. Below the MF layer a strong cohesive slab. 15cm layer of DH at ground level average grain size of 2 mm 

Advanced Information

Weather Summary

Cloud Cover:

Clear 

Temperature:

17º 

Wind:

Calm , SW 

New/Recent Snowfall:

Trace of new snow past 24 hours 

Mostly clear skies light winds out of the south west no blowing snow 

Avalanche Observations

Avalanche Observation Comments:

None Observed

Snowpack Observations

Head of Yale Creek 8470' elevation SSW aspect HS 175 CTM SC @ 20 cm below surface on a near surface FC. ECTN 

Avalanche Problems

Our primary concern is a layer of SH that is variable in distribution . This layer was not evident in our snow pit location. 

Terrain Use

Our travel plan avoid avalanche terrain over 30° We traveled to observe an avalanche fatality site from 1998. The area had heavily trafficked by snowmobile activity. We remained with our conservative travel plan at 30°

Region
Island Park
Location (from list)
Yale Creek
Observer Name
Kevin Allred