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Observation: Caribou Basin

Observation Date
12/28/2025
Observer Name
B
Region
Salt Lake » Big Cottonwood Canyon » Brighton Perimeter » Caribou Basin
Location Name or Route
Snake Creek Canyon/Caribou
Weather
Sky
Clear
Wind Direction
Northwest
Wind Speed
Light
Weather Comments
Bluebird day, mid winter frigid temps. Light WNW winds with very little Wind Blown/Transport observed.
Snow Characteristics
Snow Surface Conditions
Powder
Wind Crust
Melt-Freeze Crust
Damp
Snow Characteristics Comments

Steep SE-S aspects got damp today. Riding appeared to improve today, and likely due to the cold temperatures, settlement, and wind compaction. Less bottom feeding today. Skinning got easier today as well.

Red Flags
Red Flags
Recent Avalanches
Poor Snowpack Structure
Red Flags Comments
Early reports from Sunset appear to speak to the potential to trigger P Slab avalanches in Steep/Rocky terrain above 10,000 feet on the polars. Snow pit at 9850', NE, 25 degrees had 28cm of new settled snow, an HS of 78cm, and a 10cm ice block from the rain event. 1mm rounding facets below the rain crust were still exhibiting shears as well as the rounding basal facets. These weak layers are reactive, but only when you Isolate the test blocks from the stout/icy rain event. Observations continue to support the theory that in areas housing the thicker rain crust event the possibility of triggering an avalanche at this point in time is Unlikely. That being said, in upper elevation terrain that has a thin rain crust it is obviously possible to trigger a slide that runs on the basal facet layer.
Avalanche Problem #1
Problem
Persistent Weak Layer
Trend
Same
Problem #1 Comments

See above regarding the Persistent Slab Problem

Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate
Coordinates