Blustery, windy, snowy, coldy

Location: Kebler Pass Area
Date of Observation: 01/21/2018
Name: Evan Ross

Subject: Blustery, windy, snowy, coldy
Aspect: North, South
Elevation: 10,000-11,500

Avalanches:
Weather: Cold, windy, snowing, you get the point. Winds were moderate with stronger gusts in the Kebler corridor. Elevation didn’t really change the wind speeds, the wind speeds changes were more due to the openness of the terrain. At ridgeline winds were more north then northwest. HST was about 20-25cm at 11,000ft by 2:30pm. Less then reported elsewhere in the area. Probably do to windy weather.
Snowpack: Lots of snow drifting onto the Southern half of the compass in the Anthracites. Though this snow wasn’t failing on the 1/20 crust, nor was it enough load to collapse this crusts. This was one south facing slope at rideline in the Anthracites, higher in elevation or different terrain characteristics could certainly change things.

Got a couple laps in on some north facing slopes with no persistent slab issues or obvious signs to instability. Small, cross loaded windslabs were about it. Though these northerly observation are poor quality given the number of previous skier traffic in the terrain.

Small sluffing was the most widespread issue observed today.

Photos:

Anthracite Mesa N-NE

Location: Crested Butte Area
Date of Observation: 01/21/2018
Name: CB AIARE L2

Subject: Anthracite Mesa N-NE
Aspect: North, North East
Elevation: 9458′ – 10,800′

Avalanches:

Remnants of old avalanche on NE aspect near Avy one glades touring into Coneys’.

Weather: Group 1) 12:47 OVC skies, -11c Air, 10171′, Precip: S1, NNW Light-Moderate w/ Strong gusts occasionally,
Group 2)12:30 OVC skies, -5c Air, 10100′, Precip: S1, Moderate Winds
Snowpack: Group 1)10200′
HS: 100cm
HN:24cm
PWL @ 65 cm from surface on 2-3mm Depth Hoar: CT20 SC, CT15 SC, ECTP19 SC
Hardness of slab above PWL: F(srfc) – 1F
Below PWL: F to ground
Footpen: 50cm
Group 2) 10100′
HS: 95
HN: 24cm
PWL @ 80cm from surface on FC 1-2mm: PST 60/100 END
Hardness of slab above PWL: F(srfc)-1F
Below Pwl: 4F-P

Photos:

Gothic 5:30am

Location: Crested Butte Area
Date of Observation: 01/21/2018
Name: billy barr

Subject: Gothic 5:30am
Aspect:
Elevation:

Avalanches:
Weather: Snow starting around 9 p.m. going off and on overnight though not much the past few hours and only 2½” so far with 0.19″ water and snowpack at 27″. It was partly cloudy when i went out around 5:20 and cloudy and snowing again (very lightly) when i was done about 20 minutes later. Currently snowing lightly while mostly cloudy and generally calm though with occasional gusting to 8 from the west. Temp. dipped to 10 with the clearing but now at 15F. Will update if needed at the 7 a.m. sweep time.
Snowpack:

Photos:

Old Bed Surfaces

Location: Paradise Divide Area
Date of Observation: 01/20/2018
Name: Evan Ross

Subject: Old Bed Surfaces
Aspect: North East
Elevation: 9,000 to 11,000

Avalanches:
Weather:
Snowpack: The wide propagating avalanches from our last avalanche cycle sure are cool to lay eyes on. The crush and flush analogy didn’t appear to work on the avalanche paths I viewed on Schuylkill Ridge. HS is shallow below these old crowns. With a couple inches of NSF on top of the old bed surface and still 10 to 30cm’s of large grained depth hoar below. These slopes lost their mid-pack, butt didn’t loose their persistent weak layers.

Photos:

Anthracites avalanches from a week ago

Location: Kebler Pass Area
Date of Observation: 01/20/2018
Name: Ben Pritchett & Jeff Deems

Subject: Anthracites avalanches from a week ago
Aspect:
Elevation: 10,000 to 12,000′

Avalanches:

Several old avalanches from Jan 11-13 period:
Below 7 Bowl x 3, Northwest Bowl, Playground x 3, ridge that divides Floresta and Bracken, Ohio Peak SE face.

Weather: Approaching weather. Convective showers started around 11am, under a strong south flow. No significant accumulation or wind transport until around 3pm.
Snowpack: North through east aspects were settled and quiet, topped with large and durable surface hoar (up to 3cm). HS averaged 110.
On southerly aspects found thick slick melt-freeze crusts up to 11,500′, thin zipper sun crust observed from 11,500 – 12,000′.
No cracking, collapsing or fresh avalanches.

Photos:

crown profile above NW bowl slide

very broad crown, estimated ~1,200′ wide

North end of the crown in NW bowl

D2 on SE aspect off Ohio Peak

Broad avalanche in relatively low angled terrain

the largest of 3 D2’s in the Playground

looking across at the Northwest bowl avalanche

Large durable SH (3cm)

D1.5 on small slope below 7 bowl

Surface Hoar, in most open slopes on Northwest to East aspects up to 11,500′

Eleven Guides PM Report (Cat tenure)

Location: Kebler Pass Area
Date of Observation: 01/19/2018
Name: Eleven Guides

Subject: Eleven Guides PM Report (Cat tenure)
Aspect: East, South East, South, South West, West
Elevation: 10-11,500

Avalanches:

Two additional small WL D1’s ~1130 East Aspect above Robinson
Party Hats Left HS-AB-R1-D0.5-O FC-12/21 (20cm x 50m x 50m) Peeling the wind board
Hs 65-90cm, top 15 cm P hardness over 4F_F Party Hats Right HS-AB-R1-D1-O FC-12/21 (25cm x 30m x 50m) Peeling the wind Board, slick bed surface

Weather: Skies Few throughout the day with strong solar. Moderate SW winds, high temp of 40* held from 1100-1400. Strong SW gusts Flagged peaks for a couple hours @ 1330 but subsided to calm by 1600.
Snowpack: Snowpack continues faceting but growing MFCR on Southerlies and zippers throughout
most aspects & elevations. First day venturing into UUWW: Party Hats L&R HS 30-100 cm’s, capped with a 15cm
P+ supportive HardSlab (isolated to gulley features) sits over 4F-F snowpack, MFcr layers not present in this
terrain. Large collapse approaching Vodka, the rolling thunder continues.
SBM: HS 60. 4 distinct MFCr, ECTX

Photos:

Eleven Guides PM Report (Cat tenure)

Location: Kebler Pass Area
Date of Observation: 01/18/2018
Name: Eleven Guides

Subject: Eleven Guides PM Report (Cat tenure)
Aspect: East, South East, South, South West, West
Elevation: 10-11,500

Avalanches:

No significant avalanches despite heavy shots (10£ ANFO) on old hard slabs. Small WL on easterly aspect above Robinson ~1300.

Weather: Cold morning warmed up to mild temperatures with highs near 39* @ 1300! Light westerly
winds, Overcast this morning, clearing to FEW in the afternoon.
Snowpack: Snow continues to erode from faceting process. Significant melt freeze crusts (3-6cm)
dominate anything that has southerly tilt. On southerly slopes, 3 significant crusts with facets 1-2mm
developing underneath. Near surface facets and surface hoar was primarily destroyed today by solar.
Couple significant collapses in Katie’s while boot packing.

Photos:

Frozen Dinner

Location: Kebler Pass Area
Date of Observation: 01/18/2018
Name: Kirk H

Subject: Frozen Dinner
Aspect: North, North East, East
Elevation: 11400

Avalanches:

No evidence of any recent activity .
However we did ski upon a buried Bull Elk . Someone has been lucky to have his frozen dinner close by for the season. Hard to tell if this guys fate was met by and Avalanche or a wound from Hunting Season.

Weather: Calm , Sunny
Snowpack: Not too many changes from past observation , less whumphing and more facets.

Quiet On Snodgrass

Location: Crested Butte Area
Date of Observation: 01/17/2018
Name: Evan Ross

Subject: Quiet On Snodgrass
Aspect: North East
Elevation: 9,400-10,400. BTL

Avalanches:
Weather: Not a cloud in the sky and no wind.
Snowpack: Quiet out there. Not a single collapse. Kept it under 35 degrees and didn’t see any obvious signs to instability. The upper snowpack has lost a lot of strength and there wasn’t much mid-pack left. The bottom of the snowpack is still junk. Really its all junky. Even some wind boards were faceting out. Seems like you could trigger a slab somewhere were you found better mid-pack structure, but we sure didn’t find it during our short couple of runs. Thoroughly tested the snowpack with a number of head penetrator tests.

Photos:

Red Lady Glades

Location: Kebler Pass Area
Date of Observation: 01/16/2018
Name: Alex Banas

Subject: Red Lady Glades
Aspect: South East, South
Elevation: 9,400-12,000

Avalanches:
Weather:
Snowpack: Shallow snowpack with max HS observed at 60cm. Two distinct melt/freeze crusts in the mid-pack with the lower one caping 10cm of large-grained facets on the ground. Widespread surface hoar growth in the valley bottom. Not observed a few hundred feet up from the Kebler pass corridor.

Photos: