Observation: Prelude

Observation Date
1/6/2024
Observer Name
Trenbeath
Region
Moab » Laurel Highway » Prelude
Location Name or Route
Laurel Highway - Prelude - Westwood
Weather
Sky
Scattered
Wind Direction
Southwest
Wind Speed
Light
Weather Comments
Beautiful cold day in the mountains with an surprise 5"-7" of fluff ahead of the next storm.
Snow Characteristics
New Snow Depth
7"
New Snow Density
Low
Snow Surface Conditions
Powder
Snow Characteristics Comments
5'-7" of light, fluffy powder. Surprisingly un-wind affected given overnight speeds. Winds appeared to be confined to the highest elevations.
Red Flags
Red Flags
Poor Snowpack Structure
Red Flags Comments
The weak snowpack has been documented thoroughly during this season of low snow conditions and overall dry weather, but it's generally faceted through to the ground.
Avalanche Problem #1
Problem
New Snow
Trend
Increasing Danger
Problem #1 Comments
The primary concern today appeared to be mostly loose sluffs in new light, fluffy powder. There was evidence of wind drifting but not to the extent that I expected. Near treeline and below, it was all light, fluffy powder. Above treeline there were deeper areas of drifted snow, but they were still very soft and not very cohesive. We experienced no cracking. We did not get much above treeline, but looking around we could see fatter, pillowy looking areas up high.
Avalanche Problem #2
Problem
Persistent Weak Layer
Trend
Increasing Danger
Problem #2 Comments
Although it didn't present as a problem today, there are numerous weak layers of faceted snow in the pack that will become problematic as soon as a real load is applied, likely by tomorrow. The weakest snow is currently a layer of near surface facets under the most recent snow and this will become a problem quickly. With a real load, say 2+ inches of water, avalanches breaking deeper, or to the ground will be likely.
Snow Profile
Aspect
Northwest
Elevation
11,200'
Slope Angle
27°
Comments
First snowpit in awhile with a relatively supportable mid-pack Likely wind slabs.
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
None
Coordinates