Mount Emmons

CB Avalanche Center2014-15 Observations

Name: Evan Ross
Title: Mount Emmons
Location: Kebler Pass Area
Date of Observation: 01/01/2015
Aspect: South East, South
Elevation: 9000-11,400

Weather: WEATHER: Few clouds becoming overcast and snowing by 10am. Snowing up to S2 at times with about 2″ of accumulation. Calm to light down valley winds.

Snowpack: SNOWPACK/AVALANCHE OBS: Same same really. Could still feel a density change by probe of weaker snow on top of the 12/13 facets and below the solstice slab. Likely a thin layer of NSF that should be gaining strength. On a south slope at treeline this interface was still noticeable in a pit wall but was considerably stronger then a pit dug on 12/26, same aspect, and about 500ft lower in elevation.

On a cross loaded slope just above the parking lot 2″ windslabs where cracking.

Small Avalanche on Snodgrass

CB Avalanche Center2014-15 Observations

Name: Gary Dotzler
Title: Small Avalanche on Snodgrass
Location: Crested Butte Area
Date of Observation: 01/01/2015
Aspect: North East
Elevation: 9600

Avalanches: Small sympathetic release following a whoomf. Small rollover on Snodgrass near saddle at 9600 ft. See pic below.

Weather: Snowing

Snowpack: Started skin track 1 mile south of Gothic, near cabins on west side of road. Immediately heard whoomfing about every 3-5 minutes of travel. Had only climb 300 feet when one whoomf set off a sympathetic release on roll over 70 yards away. Looked to be a 2ft crown at it deepest. Picture attached. Was about 50 yards wide. that coupled with the whoomfing was enough for us to turn around and call it a day.

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Mt. Emmons

CB Avalanche Center2014-15 Observations

Name: ADB
Title: Mt. Emmons
Location: Crested Butte Area
Date of Observation: 01/01/2015
Aspect: South

Avalanches: Due to very low visibility, NA.

Weather: Happy New year. Tour began under mostly sunny skies with clouds moving in from southwest (Mt Axtell). Skies quickly transitioned to mostly cloudy then continuous snowfall. No wind was associated with this front, as there was no wind on the summit ridge or south ridge of Mt. Emmons. The skin track on south ridge had approximately 0.5 inches of new snow. Snow fall rates were less than 1 inch/hour and continuous

Snowpack: While sun was out, observed surface hoar formation in open areas, as I did yesterday on Snodgrass (no obs). ATL-2 to 4 inches of wintry snow. BTL/NTL-4 to 8 inches of wintery snow with infrequent pockets of sun crust.

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North and South Near Town

CB Avalanche Center2014-15 Observations

Name: Jake Jones
Title: North and South Near Town
Location: Crested Butte Area
Date of Observation: 01/01/2015
Aspect: North, North East, South, South West
Elevation: 10,500

Avalanches: No signs of instability on or off the skin track or while making turns.

Weather: Light snow and calm wind early on New Years day.

Snowpack: The most southerly aspects in the Slate River valley are showing the first signs of surface crusts. Those crusts were getting buried by the couple inches of snow that fell today. Northerly aspects in the Washington Gulch valley are growing surface hoar and near surface facets. Overall the snowpack is really supportive on both ends of the compass rose with deeper ski pen on the north. Didn’t travel on slopes steeper than 30 degrees.

Mountain Weather January 1, 2014

CB Avalanche CenterWeather

Date: 01/01/2015

The closed low pressure system is currently rotating across the Arizona/New Mexico border. It will push moisture, clouds, and modest snowfall into the Elk Mountains today under a Southerly flow. As the system moves east, we’ll see things dry out on Friday. On Saturday, a fast-moving shortwave will brush our mountains from the northwest, with some orographic showers especially in the favored northern and western parts of our forecast area

Kebler Pass Area

CBAC2014-15 Observations

Name: Evan Ross
DATE: 2014-12-31
Location: Scarps Ridge
Elevation 10,000-12,200
Aspect: S-SW

Weather: Clear dog clear! Calm wind at ridgeline becoming light to moderate from the southeast in the afternoon. Some blowing snow at ridelines. The next storm was approaching from the southwest in the afternoon.

Snowpack: Prime time ski time! Great skiing conditions on south facing slopes. NTL and ATL slopes had a dense wind pressed slab from the Solstice storm with fresh low density snow on top from earlier this weak. Didn’t find any signs to instability but managed terrain features and stayed on slopes 35 degrees or less. Surface hoar was widespread in the morning. Vary small, 1-2mm.

Avalanches: Numerous avalanches observed that failed during the Solstice Cycle. Wide propagating slabs on west aspects and smaller pockets on southeast aspects. All startzones likely 35 degrees or steeper.

Crested Butte Area

CBAC2014-15 Observations

Guide(s): Donny (Irwin Guides)
Date: 2014-12-31
Location: Red Lady Glades to Evan’s Basin
Elevation: 9200′ to 12,400′
Aspect: Mostly south

Weather: clear, calm and cold at the trailhead in the morning.  Significant warming during the day.  It was downright pleasant to 11,800′.  Moderate winds from SE on top of Mt. Emmons.  Some blowing snow and loading into Redwell Basin.

Snowpack/Avalanche Obs: Ski pen of 5cm while skinning.  Boot pen varied.  At times it would go to the Dec. 13 interface, other times it would go to the basal facets.  Snow surface was a mix of surface facets and surface hoar.  No signs of instabilities or recent avalanches.  I dug two, quick holes.  The Dec. 13th interface is still there, and the snow above it gains strength the deeper it gets.  Why is it not reactive?  I wonder if the snow since Dec. 13th isn’t starting to facet, maybe some crusts as well, and therefore the change in hardness is less dramatic?  Obviously, I didn’t have time to study in more detail. Thoughts?

Large Natural Slab into Peeler Basin

CB Avalanche Center2014-15 Observations

Name: Zach Guy
Title: Large natural slab into Peeler Basin
Location: Kebler Pass Area
Date of Observation: 12/31/2014
Aspect: North East
Elevation: 12,000 ft.

Avalanches: Recent natural avalanche (probably failed in the last 3 or 4 days) off of Scarp Ridge, NE aspect ATL. Looked to be about 2 feet deep, 150-200 feet wide, ran full track into the bottom of the basin (~800 vertical feet), releasing a secondary slab as it came over the first cliff band. Unknown failure layer. SS-N-R2-D2-U.

Mountain Weather December 31, 2014

CB Avalanche CenterWeather

Date: 12/31/2014

It’s a chilly -8F in town this morning, but mountain temperatures will rebound nicely ahead of a closed low moving along the California coastline towards Arizona today. The San Juan mountains will catch most of the snowfall from this cyclone, but a couple inches of snow should begin accumulating in our mountains by New Year’s Day. As the system rotates east, we’ll see showers dwindle before we return to northwest flow through the weekend.