Mountain Weather 1/13/2017

CB Avalanche CenterWeather

Date: 01/13/2017

We will see residual moisture produce light snow at times, with a general warming trend over the next few days as the low pressure off the coast of Southern California tracks into Old Mexico. I haven’t seen the sun in 2 weeks, now, so I will hang onto the hope the sun may pop out for short periods today. Expect the next several days to begin to dry out, light snow showers possible, but minimal accumulations and well behaved light westerly winds the norm. Looking ahead, another storm looks possible late next week as a large scale trough of low pressure moves off the Pacific.

Avy 2 Course

CB Avalanche Center2016-17 Observations

Location: Crested Butte Area
Date of Observation: 01/12/2017
Name: Evan Ross
Subject: Avy 2 Course
Aspect: North East, South
Elevation: 9,600-10,300

Avalanches:
Weather:
Snowpack: See Attachment

Screen-Shot-2017-01-12-at-7.03.29-PM

5 ft + on Emmons

CB Avalanche Center2016-17 Observations

Location: Crested Butte Area
Date of Observation: 01/12/2017
Name: Zach Guy
Subject: 5 ft + on Emmons
Aspect: South
Elevation: 11,100 ft

Avalanches: Had views of the lower runout of Coon Bowl and the starting zones of a couple Climax Chutes and saw no signs of recent activity.
Weather: Obscured skies, S-1 to S1. Light winds with light transport at NTL location.
Snowpack: HS on a flat, windsheltered slope NTL was 280cm. Snowpack is settling quickly, ski pen was about 20 cm and boot pen was about 60 cm. Low angle is skiing nice now.
Dug one pit on a windward, S aspect NTL. The January 1 crust was 85 cm above the ground and buried by a 155 cm, right-side-up slab from F down to P-. ECT produced several non-propagating fractures in mid-storm layers. A deep tap ECT crossed the column on 3rd hit, sudden planar, on the January 1 crust. The weak layer was 0.5 to 0.7 mm rounding facets. No signs of instability breaking trail along a low angle, gladed ridgeline.

S aspect NTL. 5 foot slab over facet/crust layer.

HS in windsheltered area NTL. ~280 cm

Kebler Road/ Irwin Obs

CB Avalanche Center2016-17 Observations

Location: Kebler Pass Area
Date of Observation: 01/12/2017
Name: Irwin Guides
Subject: Kebler Road/ Irwin Obs
Aspect:
Elevation:

Avalanches: Havlick and Ruby Mining District resident both heard a very large Avalanche off Ruby at 0835. Saw one large crown above Elk Basin.
Weather: Continues to snow S1-2.
Snowpack: Snow: 18″ 1.8″ SWE since 1/10 at 1600 (40hrs). Storm stake was completely buried, dug it out, 41″ with storm water 6.6″ since Jan 8th. Total snow since 1/1 is 98″ with 11.3″ water.
Kebler has 2-3′ on the road, more in classic wind loaded areas. The road is starting to merge with the surrounding terrain. One single track had run the gauntlet early this AM. We only saw evidence of 2 of the 7 Sisters have avalanched. We called off operations upon Snow Safety Team arriving to the trailhead this AM. We need a day to muck out, let alone high avalanche danger. Over 100″ since Jan 1 and the roads are extremely soft and the slopes are the most loaded I’ve in my 20 years.

Gothic 7 a.m. update

CB Avalanche Center2016-17 Observations

Location: Crested Butte Area
Date of Observation: 01/12/2017
Name: billy barr
Subject: Gothic 7 a.m. update
Aspect:
Elevation:

Avalanches: No idea of slide activity- cannot see a thing.
Weather: Light snow during the day Wed. with 5″ new, then strong wind late day and only light snow before wind lets up and snow increases some, dying down around 3 a.m. or so. The 24 hour totals are 12 1/2″ new snow and 0.86″ of water as the snowpack is at years deepest of 88″. Currently light SW wind and a very light snow and of course obscured clouds, which is all we have had for the past week or century (I get confused anymore). I hear it may clear by June though.
Snowpack:

Recent Obs on Snodgrass

CB Avalanche Center2016-17 Observations

Location: Crested Butte Area
Date of Observation: 01/11/2017
Name: Ken
Subject: Recent Obs on Snodgrass
Aspect: South West
Elevation: approx 10,000ft

Avalanches:
Weather:
Snowpack:

2017-01-11-Snodgrass_-profile

Mountain Weather 1/12/2017

CB Avalanche CenterWeather

Date: 01/12/2017

The low pressure system off the coast of California will continue to sag toward Baja, and eventually “cut off” from the main atmospheric flow. As this low pressure slides south, it will spin one last significant plume of moisture across the desert southwest and into the central and southern Colorado mountains. This moisture will bring along warmer temperatures and bump snow lines to around 7500ft. Southwest winds will not be as strong as previous days, with speeds in the 30-40mph range at ridge top. The outlook for Friday and beyond look unsettled, with minor accumulations through the weekend. The next significant storm does loom late next week.

Gothic report

CB Avalanche Center2016-17 Observations

Location: Crested Butte Area
Date of Observation: 01/11/2017
Name: billy barr
Subject: Gothic report
Aspect:
Elevation:

Avalanches:
Weather:
Snowpack: Only 1″ during the day yesterday and then 6.5″ last night so total is 7.5″ with a light- for this storm- 0.44″ of water. We have reached 84″ on the ground- the most for this date on record (as was the past 2 days). Winds are calm and cloudy cover is overcast with currently no snow. Overnight temp. range 21 to 22.

Mountain Weather

CB Avalanche CenterWeather

Date: 01/11/2017

The jet stream and associated zonal flow are transporting deep Pacific moisture into the West this morning. The largest plume is tracking to our north across Northern Utah this morning, while the other is steering towards the 4 corners region and into the Elk Mountains today. 6-8″ fell last evening and we are in a brief lull early this morning before snowfall begins to intensify today. This system does not look as intense as some of our recent pulses, but we’ll see today’s snow totals approaching a foot by sunset. Winds will increase through the day and peak around sunset, as a disorganized cold front sags south. A closed low dives south along the California/Baja coast line steering unsettled, but less intense weather our way the rest of the week.

Storm Continues, Big Avalanches

CB Avalanche Center2016-17 Observations

Location: Kebler Pass Area
Date of Observation: 01/10/2017
Name: Irwin Guides
Subject: Storm Continues, Big Avalanches
Aspect: East, South East, South
Elevation: NTL

Avalanches: Big slide in E-SE-S facing terrain Near treeline (Land of Lost) from big airblast in PM, obvious windloaded terrain. Failed 3-5ft deep, on NYE crust, and stepping down to ground in places on 2-3mm facets. HS-AE-R3-D2.5-O
Weather: Showery throughout day, period of heavier snow after lunch, then another lull at 1545. SW-W winds steady 30mph gusting 50-60mph range throughout day at ridgetop. Temps in teens and low 20s.
Snowpack: Snow was showery, 3″ accumulation throughout day, bringing storm water totals 4.8″ water since 1/8 and 7.5″ since 1/1/2017.
Winds re-drifting roads with 3-4ft between work cat passes

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