Afternoon Anthracite Ski

CB Avalanche Center2018-19 Observations

Location: Kebler Pass Area
Date of Observation: 11/30/2018
Name: Eric Murrow

Subject: Afternoon Anthracite Ski
Aspect: North, North East, East
Elevation: 10,000′ – 11,250′

Avalanches:

Not sure if we triggered or well-timed naturals, SS-R1D1-I x 3

Weather: Heading out Kebler Pass at 145pm snow was generally S1, S-1 and continued at that level until about 430pm during the ride home when it ticked closer to S2. Winds were well behaved during this time with only light gusts.
Snowpack: At 240pm poked a hole on a NE slope at 10,800′ found an HS of 115cm, top 37cm was new snow since Wednesday afternoon (latest round of snowfall); it contained 1.2″SWE. Below this was 45cm of 1finger- snow from Thanksgiving storm cycle (weaker NSF were sandwiched between storm snow and Thanksgiving snow), and below this was 2-3mm facets for early Nov/Oct. Only toed into the edge of slope fully expecting it to collapse, but it didn’t (I believe this slope saw very little skier traffic this season, certainly no evidence in my hole).
Ascending to the ridge top, we were able to check out a south facing slope at 11,200. Here we generally found facets – crust-storm snow; some drifted areas had a second facet/crust combo on the ground from snow prior to Thanksgiving storm. As we skinned out the ridge and looked back there were three small Storm Slab avalanches that clearly had just ran immediately below where we just were (these ran on top of suncrust capping Thanksgiving storms. Not sure if we triggered these but seems like a strong possibility. I looped back around to inspect and while crossing same southerly slope we just probed, I got a good size collapse- wasn’t able to find any cracks but felt/sounded impressive for terrain size.

Photos:

Dumping at Pittsburg

CB Avalanche Center2018-19 Observations

Location: Paradise Divide Area
Date of Observation: 11/30/2018
Name: Steve Banks

Subject: Dumping at Pittsburg
Aspect: North East, East
Elevation: 10,500

Avalanches:

None observed.

Weather: S1-S2 all morning. Surprisingly little wind all day. It really started coming down at 11:30 and the wind picked up, but then it calmed right down again. Temps were warm, near freezing.
Snowpack: We mostly traveled in areas that had avalanched Thanksgiving weekend, and therefor didn’t see any new movement. We poked at some hillsides to see if we could get some action but found none. One large collapse in a flat bench NE facing at 10,000’ as the 3rd skier approached the group.
Test profile showed HS of 80 cms. 35cms of new snow with half of that lighter than the bottom half (right side up!). Found a soft crust below the new snow as we were on a more easterly roll. Below the crust was DFs and facets over the basal facets at the ground. ECT test got a break above the snow with no indication of propagation. Shovel tilt test showed new snow instabilities where yesterday’s wetter snow is capped by fryer snow.

Photos:

Poverty Gulch/Camo Glade. 11/27/2018

CB Avalanche Center2018-19 Observations

Location: Paradise Divide Area
Date of Observation: 11/27/2018
Name: AR

Subject: Poverty Gulch/Camo Glade
Aspect: North
Elevation: 10,000′

Avalanches:

Traveling through the Slate River valley to Poverty Gulch we observed widespread natural avalanche activity. From Schuylkill Ridge through Camo Glades, BTL to NTL, any convex roll on NW-N-NE facing terrain had slid, likely mid-storm last weekend. We toured BTL in steep North facing trees and encountered debris, crows, and general chunder. Our group experienced whumphing and cracking on any areas that had not previously released. The natural avalanches seemed to have released on the weak buried snow early this season and could not handle the load of last week’s storm. The snowpack in these treed zones was overall too thin to have any “good” skiing. Also noted slab avalanches in the Daisy Pass zone with crowns near the base of large cliff bands, as well as two distinct slab avalanches on Augusta.

Weather: Sorry getting this Ob in a few days late, but the photos show what the Camo glades were like before the storm the last few days!

Tuesday 11/27 Wx: Clear and calm, with increasing clouds in the afternoon, temps around freezing.
Snowpack:

Photos:

Mountain Weather for 11,000ft

CB Avalanche CenterWeather

Date: 11/30/2018

A low-pressure system is currently moving across Utah and pulling moisture into Colorado on southwest flow. Snow began early this morning in the San Juan mountains and is a bit behind schedule in general. So the mountains around Crested Butte didn’t really pick up any new snow overnight as forecasted. The Kebler Pass area should see snow this morning, while our greater forecast area may have to wait until midday or early afternoon to see that snow develop. As the low-pressure trough passes to our south today, winds will become west to northwest this afternoon. That’s when snow showers should intensify. Light snow will continue for a good bit of Saturday. We are in a cooling trend heading into the weekend, with the cold area really settling in by Sunday.

  • Today

    High Temperature: 25
    Winds/Direction: Light AM, 10 to 20 West PM
    Sky Cover: Overcast
    Irwin Snow: 5 to 8
    Elkton Snow: 5 to 8
    Friend’s Hut Snow: 3 to 5

  • Tonight

    Low Temperature: 15
    Winds/Direction: 5 to 15 West
    Sky Cover: Overcast
    Irwin Snow: 3 to 6
    Elkton Snow: 3 to 6
    Friend’s Hut Snow: 2 to 4

  • Tomorrow

    High Temperature: 18
    Winds/Direction: 10 to 20 West
    Sky Cover: Mostly Cloudy
    Irwin Snow: 1 to 3
    Elkton Snow: 1 to 3
    Friend’s Hut Snow: 1 to 3

Shooting Cracks and Natural Avalanches

CB Avalanche Center2018-19 Observations

Location: Paradise Divide Area
Date of Observation: 11/29/2018
Name: Evan Ross

Subject: Shooting Cracks and Natural Avalanches
Aspect: East
Elevation: 11,100ft

Avalanches:

Visibility was poor in the afternoon. Observed 1 D2 natural avalanche near the Nuclear Chute in the Purple Palace Area. ENE facing terrain at 12,200ft.

Heard of two other Natural Avalanches around the same time in the afternoon by Ruby Mountain. Again poor visibility but sounded like D2 debris piles coming out of southerly and southeasterly terrain in the alpine. This slabs could have broken into old snow layers or pulled out within the storm snow, accumulating mass as they ran.

Weather: Overcast with just a little break in the clouds during the afternoon. I was only out for a few hours in the afternoon. Calm winds started to pick up as the clouds broke up a bit. Those winds seemed to be the culprit behind a couple of natural avalanches in the Ruby Range.
Snowpack: Summed up in this video. About 12″ new snow since noon on Wednesday. This new snow is adding load to the current PS avalanche problem. Also got some small shooting cracks in the upper 10″ of the storm snow.

Stepping onto a low angle 30 degree east facing slope at 11,100ft produced a large collapse and shooting cracks.

Photos:

Anthracite Dawn Patrol

CB Avalanche Center2018-19 Observations

Location: Kebler Pass Area
Date of Observation: 11/29/2018
Name: Joey Carpenter

Subject: Anthracite Dawn Patrol
Aspect: North, North East, East
Elevation: 10200-11400

Avalanches:

No new avalanches. Did get two small whumphs on the skin track and one large one just below the ridge btwx big and sliver.

Weather: Skies obscured with intermittent S1 snow and calm winds throughout the morning. Temperature 25 degrees at base of Anthracites at 6:15am. Colder near the top around 7:15.
Snowpack: Spx now around 1 meter depth in sheltered areas. 5-7 inches new snow from yesterday midday through this morning. Hand pits showed new snow sitting on top of the gobbler/post gobbler snow. Did not observe snow below thanksgiving storm but multiple pole prods felt relatively uniform through the new interfaces with rotten snow below all the way to the ground.

Photos:

Gothic 7am Report

CB Avalanche Center2018-19 Observations

Location: Crested Butte Area
Date of Observation: 11/29/2018
Name: billy bar

Subject: Gothic 7am Report
Aspect:
Elevation:

Avalanches:
Weather: Light off and on snow Thursday afternoon, them picking up at sunset and going until near midnight, then starting again a few hours later. Generally moderate with 8″ new and water 0.59″. Snowpack is at winters deepest of 22½”. Currently obscured and snowing lightly. Wind is calm and temp. stayed at 24F all night.
Snowpack:

Photos:

Red Lady, Red Coon Glades

CB Avalanche Center2018-19 Observations

Location: Kebler Pass Area
Date of Observation: 11/28/2018
Name: Ben Ammon

Subject: Red Lady, Red Coon Glades
Aspect: East, South East, South, South West
Elevation: BTL, NTL, ATL

Avalanches:
Weather: Broken skies in the morning, snow started around 10am, picked up in intensity at 11am, and was snowing heavily by the afternoon. Winds were calm to start, then light towards moderate ATL.
Snowpack: Crusts on S, SE, SW aspects with slope angles greater than 15 degrees. Observed a large collapse on S aspect NTL in Red Lady Glades. Sudden results NTL in Red Lady Glades. S and SE aspects ATL primarily scoured and still not accumulating new snow. Similar crust formation in Red Coon Glades.

Photos:

Mountain Weather for 11,000ft

CB Avalanche CenterWeather

Date: 11/29/2018

The last 24hr has gotten the ball rolling with more snow than expected. We should continue to see more snow accumulation during the early morning hours of Thursday, then generally taper off for most of the day. An approaching low-pressure system will put us into southwest flow going into Thursday night as we see snow showers turn back on and continue into Friday.

Unsettled weather will take us into the weekend with more snow in the forecast. Where exactly Saturday’s storm is going is still looking variable. So let’s just say we’ll continue to see more snow into the weekend but save the details for the weekend. By Sunday the jet stream is going to be sagging south of Colorado, opening the door for cold and below average temperatures to take us into next week.

  • Today

    High Temperature: 30
    Winds/Direction: 5 to 15 WSW
    Sky Cover: Overcast
    Irwin Snow: 2 to 4
    Elkton Snow: 2 to 4
    Friend’s Hut Snow: 1 to 3

  • Tonight

    Low Temperature: 18
    Winds/Direction: 5 to 15 SW
    Sky Cover: Overcast
    Irwin Snow: 3 to 5
    Elkton Snow: 3 to 5
    Friend’s Hut Snow: 2 to 4

  • Tomorrow

    High Temperature: 25
    Winds/Direction: 10 to 20 W
    Sky Cover: Overcast
    Irwin Snow: 3 to 5
    Elkton Snow: 3 to 5
    Friend’s Hut Snow: 3 to 5

Coney’s

CB Avalanche Center2018-19 Observations

Location: Paradise Divide Area
Date of Observation: 11/27/2018
Name: Kirk Haskell

Subject: Coney’s
Aspect: North East
Elevation: 10903

Avalanches:

Lots of signs of old activity but nothing new to speak of.

Weather: Weather was calm and clear at the time.
Snowpack: We experienced some whumphing but mostly in the valleys, windloading at top.

Photos: