Coney’s

Location: Kebler Pass Area
Date of Observation: 02/20/2018
Name: Chris Martin

Subject: Coney’s
Aspect: North East
Elevation: 9,800 – 10,800′

Avalanches:

none observed but visibility obscured

Weather: Obscured with S1-S2-S1 fluctuating throughout the day.
Light-Moderate NW downvalley winds with minimal drifting down low.
Snowpack: HS 125cm @ 10,800.
HST 8″ low density, no slab yet. Deeper in drifted spots and deeper in valley bottom.
Surface: F-4F-1F-F(became F @ 40cm to ground w/ 2-3mm DH) :Ground

Accident on Schuylkill

Location: Crested Butte Area
Date of Observation: 02/19/2018
Name: Ben Pritchett and Evan Ross

Subject: Accident on Schuylkill
Aspect: North East, East
Elevation: 11,300′

Avalanches:

PRELIMINARY DETAILS of an avalanche accident on Schuylkill Ridge in Birthday Bowl area.

2 skiers descended into the skier right side of Birthday Bowl. After a short first pitch, skier 1 was skiing to the right of the Birthday Bowl gully, while skier 2 was posted uphill of skier 1 watching from some distance below the ridge.
Skier 1 heard skier 2 yell, saw snow moving around him, was caught in the slide briefly and pulled under the snow.  After popping back to the surface he was able to exit and arrest by grabbing a tree, moving maybe 100′ downhill. Skier 1 sustained lower leg injuries and lost some gear. After calling 911 to initiate a rescue response learned that skier 2 had already called 911.  Relieved that his partner had called 911 too, skier 1 walked down the skier’s right side of the path to the toe of the debris and found skier 2’s partial burial site and tracks heading downhill.

When the avalanche released, skier 2 yelled to warn skier 1 but was pulled off his feet from his stationary position and carried downhill approximately 1000′ vertical feet in a very rough ride. He sustained substantial injuries along the way from impacts with trees. After coming to rest partially buried on the debris pile, skier 2 initially switched their transceiver to search and did not find a signal. He too contacted 911. Severely injured and without any information about the position of his partner yet, he then began to crawl downhill.

CB SAR rescuers contacted both parties a short distance downhill of the debris, and evacuated both parties for further medical care.

Photos:

Coney’s in the AM

Location: Crested Butte Area
Date of Observation: 02/19/2018
Name: ADB

Subject: Coney’s in the AM
Aspect: North East, East
Elevation: BTL

Avalanches:

NA.

Weather: Sustained moderate winds on the ridge top coming from the west and northwest. Up valley winds on the approach from the trail head to the cabin along above the left bank of the stream. For the most part no snowfall, save for one burst of S1 snowfall with minimal snow accumulation.
Snowpack: Ridgeline: 4 to 6 inch hard slab.
Bowl: 2 to 4 inch soft slabs.
Convex corner has a 1 foot wind lip. One to 2 foot cornices on first and second bowls.
Lower 1/8 of the slope below first bowl and Convex Corner is still a bump run. Upper 7/8 of the slope, winds within past 24 hours have filled in the tracks.

AIARE Rec 1 Tour day

Location: Crested Butte Area
Date of Observation: 02/18/2018
Name: Karin Pocock, Chris Pruden, Krista Hildebrandt

Subject: AIARE Rec 1 Tour day
LOCATION: Coney’s

ELEVATION: 9,600′-10,800′

ASPECT: E

Avalanche: None observed.

Weather: Clear skies, generally moderate west winds, moderate blowing snow at ridgetop for most of the day, no precip.

Snowpack: HS 80-120cm. Some collapsing observed on flats, but otherwise no signs of instability during travel. Pit at 10,750′ showed PST 45/100 end 80cm down on FC/DH to size 4. HS at this location 115cm. Skied slopes up to 30 degrees and felt comfortable with our choices.

Not for CBAC: Coney’s is rather skied out and variable thickness windcrust in most places after today’s wind.

LOCATION: Red Coon (Krista)

ELEVATION: 9,500 – 11,500′

ASPECT: S-SE

Avalanche: Avalanche observed in Red Lady Bowl – D2?

Weather: same as above

Snowpack: Pit @ 11,500ft – CT5 SP dwn 60cm FC, HS 120CM, Snow srfc had variable 2-5cm wind and sun crusts depending on micro aspect changes in each pitch.

Not for CBAC: Egress from Red Coon Glades through aspens is horrendous with guests.

LOCATION: Snodgrass/Gothic Saddle (Chris)

ELEVATION: 10,000-10,000′

ASPECT: E

Avalanche: None observed

Weather: same as above

Snowpack: Obvious signs of instability, collapsing, whumpfing and sudden results in all tests. ECTPV, CT6 SC. Chose to ski most conservative line even in BTL terrain.

Repeater

Location: Crested Butte Area
Date of Observation: 02/18/2018
Name: ZDK

Subject: Repeater
Aspect: North East
Elevation:

Avalanches:

SS-N-R2-D2.5-O Climax Chutes, ~11,000ft, NE aspect. Ran after the 1/12 cycle as well when it propagated down the ridgeline and into the trees leaving debris on a switchback of Gunsight Pass Rd.

Weather: Sunny, warming to 40F in valley floor by 11:00. Strong SW winds creating light loading on ridgelines and peaks.
Snowpack:

Photos:

Gothic Mountain

Location: Crested Butte Area
Date of Observation: 02/17/2018
Name: billy barr

Subject: Gothic Mountain

Avalanches:

Either after dark last night ( most likely) or early today a good size slide ran off the ridge above the north cirque on Gothic Mountain. Debris reached at least to near the river and maybe further (will check it out this afternoon). I was right by there near sunset last night actually looking up into that area wondering where the safest assent to there would be and came up with a good answer- i went home and watched a movie.

Note, i have the camera trained on the fracture this afternoon if you want to see it at gothgicwx.org and click on YouTube arrow. billy

Photos: Gothic Mountain North cirque.

Washington Gulch

Location: Crested Butte Area
Date of Observation: 02/17/2018
Name: Jeff Banks

Subject: Washington Gulch
Aspect:
Elevation:

Avalanches:

Possibly a new slide on Schuykill, hard to tell from distance & light.
Possibly a large slide on the Far Eastern side of Baldy, tough angle, couldn’t tell for sure.

Weather: Clear w/ Intense solar, cold in the shade.
Mod Downvalley winds form N shifted to S in late PM. Winds most intense in valley bottom & ridge top but light in mid-range.
Snowpack: Clear w/ Intense solar, cold in the shade.
Mod Downvalley winds form N shifted to S in late PM. Winds most intense in valley bottom & ridge top but light in mid-range.

Photos:

Mount Emmons

Location: Crested Butte Area
Date of Observation: 02/17/2018
Name: Ian HAVLICK

Subject: Mount Emmons
Aspect: East, South East, South, South West
Elevation: 9300-12300

Avalanches:

Examined the cornice triggered avalanche from yesterday’s near miss. Party was very very lucky the outcome was not worse. Cornice broke large, and propagated a good chunk of extreme terrain, cliffs and trees and on apron, released 60cm slab failing below 4cm 1F+ windboard on small grained facets.
Also looked at large avalanche in Wolverine basin, propagating into treed terrain. (HS-N-R2D2.5-O). Impressive.

Weather: Mostly clear, light west winds above treeline. Temperatures remained cold above treeline, but low elevations did feel mild today.
Snowpack: Snow coveraged has increased from recent snow, but strong winds have kept above treeline slopes wind scoured. Residual windslabs from last 48-72hrs appeared to be healing, and generally unreactive in terrain travelled today. One profile in very weak spot in Red Lady Bowl revealed poor structure, and test columns failing on isolation twice (ECTV x2), and one ECTP16 SC. Two propagation saw tests on basal facets failed repeatedly at PST20/100end on November/early December depth hoar. zDug in very weak spot near cliffs with both crust facet combinations in midpack and 3-4mm DH near rocky ground HS 80cm. Did not dig in bowl proper, but would expect slightly better structure and depth.

Photos:

Remotely triggered slide in Coon Bowl

Location: Crested Butte Area
Date of Observation: 02/16/2018
Name: Tim Brown

Subject: Remotely triggered slide in Coon Bowl
Aspect: North East, East, South East, South
Elevation: 9,600′-12,000′

Avalanches:

HS-ASr/c-R1/D2.5-G/O – NE aspect (11,700′-11,200′), remotely triggered a cornice which dropped onto a steep and rocky slope and triggered a large slab avalanche, which stepped out to the side and broke trees.

Several recent slab avalanches on easterly aspects of the shoulder of Red Lady Bowl and above Green Lake on Axtell

Weather: Overcast with thin clouds and strong solar radiation, limited and localized blowing snow along ridge lines from NW after noon
Snowpack: HS 60-160cm with ~ 20-40cm recent storm snow. Large cornices and significant wind loading on easterly aspects near and above treeline.
Forecast danger rating and problem distribution seems appropriate for the terrain we travelled.
SE aspect near treeline: 2 moderate collapses in open meadows, but difficult to determine how deep they were. Multiple crust/facet combinations appeared spooky in snow profile on SE aspect at 11,300′ with HS 105 and PF90cm, but snowpack tests yielded mixed results on these layers (Sudden Fractures in CT’s, ECTP 35+ SC and PST 50-80/100 down 50 and 70 cm on CR/FC combos),

Photos:

Gothic shoulder

Location: Crested Butte Area
Date of Observation: 02/16/2018
Name: Evan Ross

Subject: Gothic shoulder
Aspect: North East, East, South East
Elevation: 9,500-11,200

Avalanches:

Gothic east face, very large slab failing near ridgeline and stepping down further down slope. Avery east face, looked like a D2.5 windslab that didn’t step down to deeper weak layers.

Weather: Overcast high thin clouds. Calm winds, mostly protected by Gothic or other terrain features.
Snowpack: Stayed quiet. No collapse or other obvious signs to instability like that. Traveled on slopes in the low to mid 30 degree range. All of which had not previously avalanched this season. HS hanging in the 100 to 130cm range on average.

Photos: