Observation: Uintas

Observation Date
1/7/2020
Observer Name
Ted Scroggin
Region
Uintas
Location Name or Route
Upper Whitney Basin
Weather
Sky
Clear
Wind Direction
South
Wind Speed
Calm
Weather Comments
Beautiful clear day, nice temperatures, calm winds unless on the higher ridge lines.
Snow Characteristics
Snow Surface Conditions
Dense Loose
Faceted Loose
Wind Crust
Snow Characteristics Comments
Around 3-4" new from Sundays small storm which helped to fill in some old tracks. A lot of wind damaged snow in the wind zone, but nice dense settled soft snow on the shady aspects in sheltered terrain.
Red Flags
Red Flags
Wind Loading
Cracking
Poor Snowpack Structure
Red Flags Comments
Up in the wind zone on the higher exposed ridge lines, south winds let up some around mid morning, but picked up from the southwest early afternoon. I was finding some minor wind drifts that would crack, but these were not overly sensitive and did not want to move much. Spent the day on high north facing slopes and was finding the weak sugary snow near the ground still loose and reactive in some locations and not in others.
Avalanche Problem #1
Problem
Wind Drifted Snow
Trend
Increasing Danger
Problem #1 Comments
Felt like the wind drifted snow is still the bigger issue in this area with just enough steady wind to keep fresh wind drifts as the main concern. The winds will likely increase ahead of the approaching storm for tomorrow and should make for more widespread wind slabs.
Avalanche Problem #2
Problem
Persistent Weak Layer
Trend
Same
Problem #2 Comments
On upper elevation shady north facing slopes that are not seeing a lot of sun, the persistent weak sugary snow near the ground is still quite loose and will propagate a crack in some snow pits but not in others. Maybe the weak snow is slowly gaining some strength, but not totally there yet.
Comments
One snow pit had a column of snow propagate a crack, but it did take a couple hard hits from the shoulder. A little higher up the slope I took advantage of sledders trench and dug another snow pit where I could not get any results. Hopefully the snow conditions are moving in the right direction. Both snow pits are on a north facing slope above 9,500'.
Some old news, but noticed several old crowns where they all occurred around mid slope and interesting where the weak snow was more developed.
These upper elevation cold shady north facing slopes that went through a widespread natural avalanche cycle early in the winter, still have a thin snow pack and lots of weak snow.
Some minor wind slabs that would crack, but not too sensitive and these were on north and north east aspects.
Took a few minutes to dig a quick snow pit on a south aspect to see if I could find the crust facet combination that has been very active lately. It was less than a foot deep, the crust was fairly easy to find and there was some small faceted snow above the crust. A layer to watch over time.
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate
Coordinates