Red Lady Collapses

10webCBAC Observations

Date of Observation: 12/13/2022
Name: Cosmo Langsfeld

Zone: Southeast Mountains
Route Description: Red Lady Skin Track-Red Lady Glades

Observed avalanche activity: No
Avalanches:
Weather: Overcast, Light snow, light wind up high, calm down low.
Snowpack: Broke trail up Red Lady skin track. Quiet until near tree line. Small collapses on pillows behind tree fences near tree line. Isolated collapses and short shooting cracks on hardish windboard on windward terrain just below ridgetop above tree line. One larger collapse on low angle west-ish facing terrain in a meadow around aspens lower down on the descent.

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Wolverine Basin

10webCBAC Observations

Date of Observation: 12/11/2022
Name: Ian Havlick

Zone: Northwest Mountains
Route Description: Up from Gunsight bridge to upper Wolverine Basin.

Observed avalanche activity: Yes
Avalanches: Pretty much a war zone starting from
Climax chutes all the way to top with lots of little steep convex features having failed since the snow stopped 3 days ago. Lots of road cuts and larger features- anything over 35 degrees highly suspect
Weather: Clear, calm, cold
Snowpack: Snowpack structure similar to other observations submitted, F>1F slab resting on 20cm of large grained depth hoar. Most notable observation was widely distributed 4-6mm surface hoar on aspects traveled (N-NE-E) from 9000-11000ft. Will be worth watching with incoming snow tonight.

Photos:

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Baxter Basin

10webCBAC Observations

Date of Observation: 12/11/2022
Name: Alex B

Zone: Northwest Mountains
Route Description: Standard uptrack on the east side of the creek into baxter basin and up to the south side of cascade.

Observed avalanche activity: Yes
Avalanches: No cracking, collapsing or new avalanches observed. Isolated natural cycle in alpine terrain features in the last 48-72hrs.
Weather: Clear. Calm valley winds gusting to moderate from the SW at ridgetop. Mild temps with strong solar input.
Snowpack: Targeted one shallow slope and one deeper terrain feature. HS ranged from 90-170cm.
NW 10200′ moderate results from multiple handshears failing on 2-3mm well-preserved graupple down 45cm.
NW 10400′ CT22 RP down 65cm failing on the 2-3mm graupple.
The slab above this interface progressively stiffens to a 1f slab above and to a pencil hard slab below. The bottom 15cm of the snowpack are large grained facets.

5739

Avalanche

10webCBAC Observations

Date of Observation: 12/11/2022

Zone: Southeast Mountains
Route Description: Red lady bowl

Observed avalanche activity: Yes
Avalanches: D2-3 R2-3 remote triggered SE side of bowl from the SW side of bowl. Was not carried buried or injured. Really close call.

Photos:

5736

Purple Palace area natural via text message

10webCBAC Observations

Date of Observation: 12/10/2022
Name: Eric Murrow

Zone: Northwest Mountains
Route Description: Low elevations Purple Ridge avalanche ob

Observed avalanche activity: Yes
Avalanches: Natural avalanches on east and northeast slopes immediately above the first switchback at the head of Slate River valley. There appears to be very little snow refilled on the bed surface suggesting it ran sometime later in the day on Thursday or after.  Image texted to CBAC staff.

Photos:

5732

Remote trigger (?) at Coneys

10webCBAC Observations

Date of Observation: 12/10/2022

Zone: Southeast Mountains
Route Description: Coneys

Observed avalanche activity: Yes
Avalanches: Fresh slide appears to be remotely triggered. This same slope also ran on 11/29

Photos:

5731

Splains Gulch-BTL/East Aspect

10webCBAC Observations

Date of Observation: 12/10/2022
Name: Andrew Breibart

Zone: Northwest Mountains
Route Description: Kebler Pass TH-Splain Gulch
BTL/East aspect-see photo

Observed avalanche activity: No
Avalanches: NA
Weather: clear and calm. cold temperatures along Kebler pass road in the AM and PM.
Warm in the sun on Kebler Pass road and parking area.
Snowpack: No cracking or collapsing on fresh skin track within trees and in open terrain.
Pit height 95 cm.
Two tests:
CT 28/Q2 on facets at 23 cm (see photo).
ECTX
ski and boot pen: 15-20 cm

Photos:

5730

Ruby ran today

10webCBAC Observations

Date of Observation: 12/09/2022
Name: Irwin Guides

Zone: Northwest Mountains
Route Description: Viewed from Irwin

Observed avalanche activity: Yes
Avalanches: Southeast bowl of Ruby Peak ran this afternoon around 2:30. ~D2.5

Photos:

5719

SE mtns naturals

10webCBAC Observations

Date of Observation: 12/08/2022
Name: Zach Guy

Zone: Southeast Mountains
Route Description: Clear visibility sunset obs from Mt. CB, looking out towards south to west facing terrain of Copper Creek, Teo, Pearl Pass, and north facing terrain of Whetstone.

Observed avalanche activity: Yes
Avalanches: Similar to our cycles earlier in December, the southwest quadrant stayed pretty quiet out there. A lot of those slopes were bare dirt. I spotted 6 persistent slabs, D1-D2, that released sometime in the past few days out of concave gullies on west facing terrain A/NTL, low on slopes below wind erosion. Gothic’s east face produced a fresh D2 to the ground today. There was a wide propagating crown across Hidden Lake Bowl on Whetstone that looks older (Tuesday storm), and a few of smaller ones that looked crisp enough to be from today. And a cute ‘lil pocket on the southeast side of Avery that looks like it was triggered by a cornice fall today.
Weather:
Snowpack:

Photos:

5710

southern crust

10webCBAC Observations

Date of Observation: 12/08/2022
Name: Rob Strickland

Zone: Southeast Mountains
Route Description: Glady.
Noticeable crust under last night’s snow. The higher we got the more the crust was evident. We could see icicles hanging from the pines about 10,000′ so it must have gotten pretty warm up there.
Skied quite nice regardless

Observed avalanche activity: No
Avalanches: I kicked the fresh cornices over the east ridge and it looked soft and had no signs of instability.

Lower on the southerlies I was able to kick off a small wind slab on a road cut.
Weather: windy, snowy, dark. When the doughnut whole comes back it will be much better ;) but it was kinda burly for 21* (haha)
Snowpack: 2″ – 4″ more

5708