Northwest Avalanche Center

Observation: Public

All Observations

Observation Details

Name:
Enji Cooper
Observation Date:
March 4, 2022
Submitted:
March 4, 2022
Zone or Region:
Stevens Pass
Activity:
XC Skiing/Snowshoeing
Location:
Spinnaker Peak/Martin Peak via PCT K

Triggered Avalanches

Did you trigger any avalanches? 
Yes
Was it intentional? 
No
Avalanche Type:
Soft Slab
Size:
Size 1: Relatively harmless to people
Elevation:
3k’+
Aspect:
N
Comments:
Was triggering a lot of soft slab issues today (localized) along the ridge between Spinnaker and Martin, but also along the PCT.

Observed Avalanches

Did you observe any avalanches? 
Yes
Avalanche Type:
Wet Loose
Size:
Size 3: Could bury and destroy a car, damage a truck, destroy a wood frame house, or break a few trees
Elevation:
3k’
Aspect:
S
Comments:
Saw multiple large wet loose avy debris fields along the PCT across from Yodelin. The largest was D2.5-D3, but the average sizes were between D1-D2.

Signs of Unstable Snow

Did you see shooting cracks? 
No
Did you experience collapsing or whumpfing? 
Yes, Isolated

Observations

Most of my obs are posted above.
Lots of wet loose/faceting below treeline; more representative of depth hoar trying to turn into rounds. Was all new snow. Freeze crust in morning was punchy.
Snow was touchy near/above treeline along the ridge. Picked conservative routes where possible.

Media

Public Field Report: Spinnaker Peak/Martin Peak via PCT K
Public Field Report: Spinnaker Peak/Martin Peak via PCT K
Public Field Report: Spinnaker Peak/Martin Peak via PCT K
Public Field Report: Spinnaker Peak/Martin Peak via PCT K
Public Field Report: Spinnaker Peak/Martin Peak via PCT K
Public Field Report: Spinnaker Peak/Martin Peak via PCT K
Public Field Report: Spinnaker Peak/Martin Peak via PCT K
Public Field Report: Spinnaker Peak/Martin Peak via PCT K

Advanced Observations

Observed Avalanche Problem #1: 
Wind Slab
Comments: 
Lots of storm/wind slab issues along the ridge between Martin and Spinnaker. Was easily causing isolated collapsing with snowshoes.
Observed Avalanche Problem #2: 
Cornice
Comments: 
It seemed like cornices were on all aspects except direct south facing ones. Some of the west and east facing ones had failed in the past couple weeks, but there were a small number that were still standing.
Observed Avalanche Problem #3: 

Comments: 
WordPress Lightbox