storm check out east

Location: Cement Creek Area
Date of Observation: 04/11/2019
Name: Eric Murrow

Subject: storm check out east
Aspect: East, South East, South, South West, West
Elevation: 9,000′ – 12,100′

Avalanches:

nothin new

Weather: Overcast skies with light snowfall. Minimal accumulations between 11am and 3pm. Winds were blowing most of the day with strong gusting. Drifting of the new snow was observed even below treeline in open areas. Unfortunately, dust came immediately prior to this round of snow and will likely start to appear during the next melting period.

Snowpack: New snow accumulations ranged from about 2″ to 6″. It was a bit difficult to gauge new snow at upper elevations as the wind scoured, drifted, and pressed the snow in most open terrain. Drifts up to 18″ were observed and likely deeper on some alpine features. Drifted and wind-pressed snow readily cracked and formed a very cohesive slab.

Poked a quick hole on a west aspect at 10,000′ with an HS 155cm and found free water had percolated down to within 45cm of the ground with percolation tubes present to that level. The next warm period will likely see free water drain down to the oldest and weakest snow near the ground at this location and make Wet Slabs a concern.

Photos:

Schuykill pow and windslabs

Location: Kebler Pass Area
Date of Observation: 04/11/2019
Name: MR

Subject: Schuykill pow and windslabs
Aspect:
Elevation:

Avalanches:

Localized windslabs just above the bench, 10,200’ or so, skier triggered a small r.5d.5 slab which ran with little energy, 10 inch crown

Weather:

Snowpack:
Photos:

fresh refresh

Location: Kebler Pass Area
Date of Observation: 04/10/2019
Name: Eric Murrow

Subject: Fresh Refresh
Aspect: North, North East, East, South East, South
Elevation: 9,200′ – 11,500′

Avalanches: nada

Weather: Overcast skies with snow ranging from S-1 to S2 from 1pm to 430pm. Winds had already shifted to the NW by 1pm. Wind speeds were generally in the 10’s but some gusting reaching up to 30 at ridgetop at 11,500′. Precip fell as rimed particles and some graupel.

Snowpack: New snow accumulations reached 5″ at 430pm. Just over 2″ fell between 1 and 430pm. Poked around on a variety of aspects at ridgetop looking for fresh drifts with deepest being around 6 or 7″, Very minor cracking, 1 foot, on the driftiest features. All aspects, expect due north above 11,200ish” had a crust at new/old interface. Southerly aspects near treeline had crust 3″ thick underneath the new snow. Steepest terrain features produced minor skier triggered sloughs.
Free water on NE facing slopes had perculated down from 20 to 40cm from the surfaces. Most slopes above 11,000′ regardless of aspect had drained/froze any liquid water by the PM. Upper snowpack below around 11,000′ continued to hold moist snow below a very thin, weak crust from the previous night’s warm temperatures.

Photos:

The Melt Is Back On

Location: Paradise Divide Area
Date of Observation: 04/07/2019
Name: Evan Ross

Subject: The Melt Is Back On
Aspect:
Elevation: 9,000-13,200

Avalanches: Fresh Loose Wet Avalanches were observed at all elevations, but primarily at near and below treeline elevations that faced east to south to west. This avalanche problem was also stretching into NE facing slopes. Many loose wet avalanches stayed small and within the new snow, however some were starting to gouge deeper into the snowpack and become larger in size.

A Large Wet Slab Avalanche was also reported on a ENE aspect of Gibson Ridge, BTL, just outside of Crested Butte.

Weather: Clear sky for the first half of the day, becoming mostly cloudy by the late afternoon. Light winds with some moderate gusts at upper elevations.

Snowpack: Heading out the valley in the morning, the snow surface had only formed a soft crust overnight with moist snow below. Returning in the afternoon the lower elevation snowpack was becoming unsupportive and punchy on east to south to west aspects and up to an observed 11,500ft on a southerly aspect. Skiing on Treasury Mountain in the alpine still held great cold pow on true north and had an ok warm snow surface on a southerly facing slope in the early afternoon.

A 5 person group of snowmobiles tagged many summits in the Paradise Divide area and tested many slopes. It didn’t appear that they triggered any avalanches. They were also smart with their terrain choices and had moved on to slopes not in the direct sun by the afternoon.

Dry-ish snow ATL

Location: Crested Butte Area
Date of Observation: 04/05/2019
Name: Steve Banks

Subject: Dry-ish snow ATL
Aspect: North East, East
Elevation: 12,000

Avalanches:

1 x loose wet pushed out on steep SE face in a radiator bowl feature.
Skier on ridge punched into cornice on travers even being 12’ back from the edge.

Weather: Mostly clear skies with West winds 15-20 mph, warm temps and strong solar.

Snowpack: SE slopes at ridgetop became mount to wet in the recent new snow and could be pushed into D1 sized wet loose avalanche in some places. Low angle North had a firm crust NTL and BTL, but soft, punchy more of wind crust on steeper ATL.
NE-N slopes at and above 12,000’ still held dry snow, but it is becoming affected by warm temperatures especially where protected from cooling winds.
Photos:

Weekly Snowpack/Weather Summary

Location: Paradise Divide Area
Date of Observation: 04/05/2019
Name: Zach Kinler

Subject: Weekly Snowpack/Weather Summar

Avalanches:

No new observed.

Weather: Tair @ 12:31 was + 6.5C. Strong solar with very light southerly winds. FEW

Snowpack: At 10,400′ HS: 241 cm. Free water was observed ~63 cm from the surface. This is ~38 cm above the 2/28 interface. Continued settlement from warm weather has consolidated the snowpack to nearly knife hard mid pack.

Photos:

Wet Slab

Location: Cement Creek Area
Date of Observation: 04/04/2019
Name: DK

Subject: Wet Slab
Aspect: East, South East
Elevation: 9k

Avalanches:

Found an older wet slab on a SE facing slope around 9k. Probably slid the same day as the ones a little further up the valley in the first narrows.

Weather: Partly cloudy this morning with enough solar on E-SE slopes to produce pinwheels in the upper 1″ of fresh snow around 9:30am.

Snowpack:

Photos:

Whetstone Axtell Carbon

Location: Crested Butte Area
Date of Observation: 04/04/2019
Name: Ben Ammon

Subject: Whetstone Axtell Carbon
Aspect: North, North East, East, South East, South, South West, West, North West
Elevation: 9000′-12,500′

Avalanches:

Intentionally skier triggered several wet loose slides on a S aspect of Axtell. D1, entraining only the new snow.
Also, saw evidence of the very large avalanches on W aspects of Whetstone and E aspects of Carbon [from March cycle]. E aspect of Carbon had snapped large aspens ~1/3 mile uphill on the opposite side of the valley. Carbon creek buried under substantial debris.
Will email pics of Carbon and Whetstone slides because they’re cool!

Weather: Broken skies moving to scattered around 1130. Light winds from the W, calm in the valleys.

Snowpack: No signs of instability on W and NW aspects of Whetstone.
New snow was wet on S, SE, E aspects of Axtell, snow beneath MF crust was still dry.
Observed two small collapses on small, isolated slopes, NE aspect of Carbon around 11,500′. These slopes were above and near areas that obviously slid during the March cycle, but were lower angle and had not slid. Skied a NE aspect on Carbon and saw no signs of windslabs on NE or E aspects ATL.

Photos:

North-Northeast Near and Below Treeline

Location: Kebler Pass Area
Date of Observation: 04/03/2019
Name: Steve Banks

Subject: North-Northeast Near and Below Treeline
Aspect: North, North East
Elevation: 10,500

Avalanches:

None observed

Weather: Overcast skies with heavy snowfall at times, or none at times. Light winds from the West.

Snowpack: New snow up to 4″ quickly consolidating on solar slopes with some radiation. Very supportive snowpack and still soft, good skiing on shady slopes. Southerly slopes had a 2″ crust below the new snow, though bonding seemed to be ok. Below the crust was weaker, faceted snow.
Photos:

Glide avalanche near Gothic

Location: Crested Butte Area
Date of Observation: 04/03/2019
Name: billy bar

Subject: Glide avalanche near Gothic
Aspect:
Elevation:

Avalanches:

Weather:

Snowpack:

Photo