Donate to the 2024 Spring Campaign to help rebuild the UAC website.
icon-add
Observation
Menu
×
Menu
Forecasts
Logan
Ogden
Salt Lake
Provo
Uintas
Skyline
Moab
Abajos
Weather
Archives
How to read the forecast
Observations & Avalanches
Submit Observation
NEW - Observations Explorer
All Observations
Avalanches
Fatalities
Place Names Map
Archives
Education
Avalanche Awareness
Develop Skills
On-Snow Courses
Resources and Tutorials
Events
Store
About
Contact
Who we are
Core Values
Staff
Board of Directors
Past Forecasters
Sponsors
Annual Reports
Sign In
Blog
Donate / Join
Search
Forecasts
Logan
Ogden
Salt Lake
Provo
Uintas
Skyline
Moab
Abajos
Weather
Archives
How to read the forecast
Observations & Avalanches
Submit Observation
NEW - Observations Explorer
All Observations
Avalanches
Fatalities
Place Names Map
Archives
Education
Avalanche Awareness
Develop Skills
On-Snow Courses
Resources and Tutorials
Events
Store
About
Contact
Who we are
Core Values
Staff
Board of Directors
Past Forecasters
Sponsors
Annual Reports
Sign In
Blog
Menu
Search
icon-add
Observation
Donate / Join
Submit Observation
NEW - Observations Explorer
All Observations
Avalanches
Fatalities
Place Names Map
Archives
Submit Observation
NEW - Observations Explorer
All Observations
Avalanches
Fatalities
Place Names Map
Archives
Observation: Steam Mill Canyon
Observation Date
1/27/2018
Observer Name
Sisneros Kidd
Region
Logan » Franklin Basin » Steam Mill Canyon
Location Name or Route
Steam Mill Canyon
Weather
Sky
Overcast
Precipitation
Moderate Snowfall
Wind Direction
Southwest
Wind Speed
Moderate
Snow Characteristics
New Snow Depth
3"
New Snow Density
Medium
Snow Surface Conditions
Powder
Wind Crust
Snow Characteristics Comments
Deep, medium density powder on the N and E aspects, with the occasional stiff wind slab. Lower elevations, below about 7500', the new snow capped off facets to the ground.
Red Flags
Red Flags
Wind Loading
Cracking
Collapsing
Poor Snowpack Structure
Red Flags Comments
Heard lots of collapsing in mid elevations on W facing slopes where the snowpack was lower. Consistent SW to W winds continued to load N and E aspects throughout the day. We dug a pit at 8288' on a N facing slope and performed a compression test with a result of CTMSC@40cm, and got an ECTX. The compression test was done in a spot in the pit where a rock had pushed the weak layer higher up in the snowpack.
Avalanche Problem #1
Problem
Persistent Weak Layer
Trend
Same
Problem #1 Comments
Even though those weak layers are getting buried deeper with these last couple storms, as the tests above demonstrated, all it takes is a rock or some other spatial variability in the slope to push those weak layers higher up to where a rider can affect them and cause the whole slope to propagate. We're not out of the woods yet.
Avalanche Problem #2
Problem
Wind Drifted Snow
Trend
Same
Snow Profile
Aspect
North
Elevation
8,300'
Slope Angle
30°
Today's Observed Danger Rating
Considerable
Tomorrows Estimated Danger Rating
Considerable
Coordinates