Natural avalanches viewed from Scarp Ridge

CB Avalanche Center2014-15 Observations

LOCATION: Kebler Pass Area
DATE OF OBSERVATION: 03/04/2015
NAME: Zach Guy
SUBJECT: Natural avalanches viewed from Scarp Ridge
ASPECT:
ELEVATION: various

 

AVALANCHES: We spotted large slides on all aspects, ranging from D2 to D3 in size. Mt. Gothic’s west face and Mt. Afley’s southeast face both produced impressively wide slides (R4). All of Northwest Bowl in the Anthracites ran (R4). The east face of Ruby and north face of Carbon produced large slides. The south side of Peeler Peak had a couple smaller crowns. All of these slides looked fresh in the past 24 hours. Older debris piles from days prior could be seen from slides originating off of Scarp Ridge’s NE slopes and off of Mt. Owen’s east face. Mt. Axtell’s First Bowl ran sometime today, clearing out a swath of small trees on its way to running full track across Coal Creek.

WEATHER: Brief clearing allowed views across the range.
Snow transport picked up in the afternoon under WNW winds and light snowfall. Cold temps. Broken to overcast skies.

SNOWPACK: 13″ overnight.

UPLOADS:

South face of Peeler Peak

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East face of Ruby Peak

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Fresh debris this evening with snapped trees below Axtell’s First Bowl

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Mountain Weather March 4, 2015

CB Avalanche CenterWeather

Date: 03/04/2015

Moisture erodes quickly as north flow fills in behind the exiting trough. A few light showers may linger this morning, and skies will start clearing this afternoon. The familiar west coast ridge amplifies, bringing dry northwest flow under a warming trend into next week. It has been a great storm, hasn’t it?

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Snodgrass Natural Avalanches

CB Avalanche Center2014-15 Observations

LOCATION: Crested Butte Area
DATE OF OBSERVATION: 03/03/2015
NAME: Gary Dotzler
SUBJECT: Snodgrass Natural Avalanches
ASPECT: North East
ELEVATION: 9600-11,000

 

AVALANCHES: Many naturall avalanches visible on Snodgrass looking south from Gothic townsite, Once mountain became visible around 11am Tuesday, March 3, 2015 I could see many natural slides on Snodgrass in all the usual locations. At least 8 slides visible and these are all the parts of Snodgrass furthest from CB, and less skied by town folk. Couldn’t see the popular ski runs on Snodgrass but would assume similar scenario.

I’ve seen Snodgrass with more slides on it, after bigger dumps, which indicates to me that a lot of the un-slid areas are near the tipping point but not quite there for naturals to occur, this would give me pause were I to ski an area that didn’t slide (which I’m not gonna do).

WEATHER:

SNOWPACK:

UPLOADS:…

Mountain Weather March 3rd, 2015

CB Avalanche CenterWeather

Date: 3/3/15

Here comes the final kick! As moisture moves east of us today, an upper level trough crosses the state, shifting flow from southwest to west to northwest through tomorrow. Unstable air will continue to fuel snow showers. Wind speeds remain elevated today and pick up again tomorrow on the backside of the trough. An associated cold front swoops down from the Northwest tonight intensifying snowfall. Kebler Pass and Paradise Divide can do quite well with this shift in flow direction. Ridging from the West Coast will bring an end to the storm on Wednesday, with skies clearing and a warming trend in the latter half of the week.

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Kebler Pass Obs

CB Avalanche Center2014-15 Observations

LOCATION: Kebler Pass Area
DATE OF OBSERVATION: 03/02/2015
NAME: Havlick
SUBJECT: Kebler Pass Obs
ASPECT: North, North East, East, North West
ELEVATION: 10-13000K

 

AVALANCHES: N face Ohio, NW shoulder Ohio, numerous D2 slides in anthracites proper. One size 2 on north facing Scarp Ridge observed, as well as fresh windslab on Ruby/Dyke saddle around 1615. pics of axtell crowns

WEATHER: mild, light winds increasing in afternoon from SW. heavy snow started falling at 1700hrs. riming conditions.

SNOWPACK: moist heavy surface snow (6-8″) was reactive in isolated areas to explosives. Minor cracking throughout day.

UPLOADS:…

Red Coon Natural Avalanche

CB Avalanche Center2014-15 Observations

LOCATION: Crested Butte Area
DATE OF OBSERVATION: 03/02/2015
NAME: Evan Ross
SUBJECT: Red Coon Natural Avalanche
ASPECT:
ELEVATION: 11,700

 

AVALANCHES: Observed from town a natural avalanche in the Red Coon Basin. Estimated as an R2-D2.5 but I could only see a portion of the crown. The avalanche was located on the Northeast facing portion of the generally East facing bowl.

WEATHER:

SNOWPACK:

UPLOADS:…

Very Large natural and remotely triggered slides on Axtell

CB Avalanche Center2014-15 Observations

LOCATION: Crested Butte Area
DATE OF OBSERVATION: 03/02/2015
NAME: Zach Guy
SUBJECT: Very Large Natural and remotely triggered slides on Axtell
ASPECT: North, North East, East
ELEVATION: 10,000 to 12,000 ft

 

AVALANCHES: Most impressive avalanche cycle I’ve ever seen on Axtell. Slides in 1st, 2nd, 3rd, 4th, 5th and 6th bowls that all ran yesterday or today. The last 4 ran wall-to-wall, up to 2,000 feet wide and most running 1,500 – 2,000 vertical to valley floor. These were N/ATL on N/NE/E aspects, with one wrapping to SE.. All crowns were 2-3 feet deep, failing on the same near surface facet layer buried mid-February and gouged to the ground in places. With the exception of a D2 in 1st Bowl (BTL), the remainder were all D2.5 to D3’s (N/ATL). Two (maybe 3?) were triggered remotely by a party in front of us from the ridge. The other three were naturals. We also remotely triggered a narrow D2 that ran to valley floor.

WEATHER: Warm. Periods of very light snow. Moderate southwest ridgetop winds with moderate snow transport. Overcast skies.

SNOWPACK: Last night’s snow was dense and top heavy. Lots of tree bombing today and southerly surfaces became moist. On north aspects near/below treeline, about 70-90 cm of 4F to F hard snow down to our fist hard, mid-February facet layer. All facets below that.

UPLOADS:

Crowns were 70 – 90 cm thick.  Generally 4F to 4F- slabs over fist hard facets.

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2nd Bowl on Axtell.  (North aspect N/BTL)

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Wang Chung Face (North aspect, near treeline)

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3rd Bowl..”The Pencil”  (Northeast aspect NTL)

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4th Bowl.  Hard to see the crown but it ran wall to wall, 2000 feet wide.   (E, NE, N aspect ATL)

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5th Bowl above Green Lake. Also ran full width.  (NW-N-NE ATL)

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Extent of crown lines observed 3/2/15.  The last crown line to lookers left is estimated.

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Mountain Weather March 2, 2015

CB Avalanche CenterWeather

Date: 03/02/2015

Don’t worry, just because its not snowing now we still have more snowfall on the way, but the timing of the heavier pulses is harder to nail down. There is a deep moisture tap extending from Southwest Colorado all the way to Southern California. This moisture will be the fuel for our next round of higher precipitation rates this afternoon or tonight. A cold front is currently moving across Utah and as it moves into our area later today/tonight it should produce bands of heavier snowfall with increasing winds. Snowfall will continue on Tuesday as another trough moves into Northern Colorado on northwest flow. This front will be even colder and we should see another pulse in snowfall rates as this system moves into central Colorado. Mt CB has seen some of the best accumulations recently while we’ve been under southwest flow. This flow will be changing to more westerly or northwesterly on Tuesday and increase the accumulations for the western portion of our area.

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Cement Creek

CB Avalanche Center2014-15 Observations

LOCATION: Cement Creek Area
DATE OF OBSERVATION: 03/01/2015
NAME: ADB
ELEVATION: BTL
WEATHER: 100% cloud cover. Calm. 10 minute period of S-1
SNOWPACK: 7.5 to 10cm of new snow.
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Mountain Weather March 1, 2015

CB Avalanche CenterWeather

Date: 03/01/2015

The simple part of the forecast is to say we’ll see accumulating snow each day through Wednesday. So we can all cheers to that. The harder part of the forecast is nailing down the specifies for each day. Today we’re expecting a slight decrease in precipitation rates before snowfall ramps back up this afternoon and tonight. The low pressure south of Colorado that is currently spinning moisture into our area is getting kicked to the east by an upstream shortwave trough dropping down on northwest flow. This trough looks to ramp up snowfall in our area again on Monday through Tuesday.

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