Ad
The National Forest Service Logo
icon-add Observation
Forecasts
Logan Ogden Salt Lake Provo Uintas Skyline Moab Abajos Weather Archives How to read the forecast
Observations & Avalanches
Submit Observation Observations Explorer All Observations Avalanches Fatalities Weather Place Names Map Archives
Education
Avalanche Class List UAC Class List Online Classes Resources and Tutorials Avalanche Awareness Develop Skills
Events
Store
About
Contact Who we are Core Values Staff Board of Directors Past Forecasters Sponsors Annual Reports Sign In
Blog
icon-add Observation
Donate / Join

Observation: Chubby Hollow

Observation Date
1/31/2021
Observer Name
Dubovik
Region
Logan » Bear Lake » Chubby Hollow
Location Name or Route
Chubby Hollow
Red Flags
Red Flags
Recent Avalanches
Collapsing
Poor Snowpack Structure
Avalanche Problem #1
Problem
Persistent Weak Layer
Trend
Same
Problem #1 Comments
I'd be interested in others observations in this area because mine sure supposed me.
Test results:
CTV-Failed during isolation.
ECTV-Failed during isolation.
I expected this layer to be vulnerable, but did not expect it to be that reactive. Both failed on the old November facets near the ground.
Comments
Broken sky today. Warm but the sun never got out from behind the clouds enough to deteriorate the snow surface. On my way up there was widespread collapsing. Dug a few hand pits to try and find the weak layer, but never found it.
Found a good place to dig a pit and got my suprising results. The weak layer is buried fairly deep (>1 meter). But given the varying depth of the snowpack I'd imagine it wouldn't be hard to trigger this layer.
Terrain management is incredibly important over the next few days. And I'd imagine with any new storms this weak layer will produce more natural avalanches.
Today's Observed Danger Rating
Considerable
Tomorrows Estimated Danger Rating
Considerable