Mt Emmons

CBAC2014-15 Observations

Name: Evan Ross
DATE: 3/6/15
LOCATION: Mt Emmons
ELEVATION: ATL-BTL 
ASPECT: SE/S
WEATHER: Really blue, really hot and really no wind.
SNOWPACK:
The march toaster oven was in full effect. Snow surfaces at all elevations became moist by mid day. Differently some rapped settlement going on. Didn’t observe any obvious signs to instability while traveling through terrain but the wide spread avalanche cycle speaks to the potential.
AVALANCHE OBS: 
The lookers left side of RLB (Northeast facing) ran at some point. D2.5 with a 3-4 food deep crown and about 3,000ft wide when measured on Google Earth! Otherwise large avalanches can be observed everywhere on all aspects at all elevations.

Conradicals

CB Avalanche Center2014-15 Observations

LOCATION: Crested Butte Area
DATE OF OBSERVATION: 03/06/2015
NAME: than
SUBJECT: Conradicals
ASPECT: North, North East
ELEVATION: BTL

 

AVALANCHES: west face of Gothic, Redwell out of rocks skiers left of Gunsight (NE face) and gully far skiers right (N facing) above where people often transition to climb up the road, wolverine, several on Schuylkill in areas that have seen lots of traffic through winter.

WEATHER: sunny, warm, no wind

SNOWPACK: Ski pen 14 inches, anything jacked a little east getting warm, north facing some wind effect in open areas, natural cornice failure caused a small release 14 inches deep and about 30 feet wide and ran about 50 feet, two big chunkers slid downhill about 100 yards. Overall pack felt and looked good in the particular spot we were skiing.

UPLOADS:

Mountain Weather for Friday, March 6th, 2015

CB Avalanche CenterWeather

Date: 03/06/2015

This morning higher elevation sites are in the high teens while valley locations flirt with the zero degree mark. Northwest winds continue to remain elevated, averaging around 15mph, and gusting to near 25. Today, temps will climb to near 30 degrees and winds will decrease. The bigger picture looks like a gradual warming trend as high pressure strengthens across the west, with a hiccup of increasing clouds on Saturday, and next chance of snow next Thursday.

Major Slides on Whetstone

CB Avalanche Center2014-15 Observations

LOCATION: Crested Butte Area
DATE OF OBSERVATION: 03/05/2015
NAME: JSJ
SUBJECT: Major Slides on Whetstone
ASPECT: North, North East, East, South East, North West
ELEVATION: 8000-12000ft

 

AVALANCHES: Major slides observed on Whetstone today.

1) debris seen from 2 different small slides on E and N aspects in ‘lucky boy bowl’

2) Palm tree chute ran full track D2.5

3) whetstone main summit bowl wall to wall

4) big bowl just south of main (north) summit ran

5) M Face almost wall to wall

6) lots of smaller D2 slides on steep cross loaded and wind loaded terrain features and slopes all along massif

7) just about every path and slope above the highway dept barn off hwy 135 to the U employment chutes ran full track.

Seems like most everything was D2 – D3 in size and ran on the top of the basal facet layer, but that’s just from what it seems from the valley floor

Impressive cycle….one of the bigger widespread natural cycles I’ve seen on whetstone in quite some time.

WEATHER:

SNOWPACK:

UPLOADS:

Remote triggered slides in Edge, Staircase

CB Avalanche Center2014-15 Observations

LOCATION: Crested Butte Area
DATE OF OBSERVATION: 03/04/2015
NAME: Berardo / Hickey / Myall
SUBJECT: Remote triggered slides in Edge, Staircase
ASPECT: North East
ELEVATION: 10775

NOTE:  KEEP IN MIND THAT THESE AVALANCHES WERE IN UN-OPENED (CLOSED) TERRAIN.

AVALANCHES: Avalanche control route starting at 11:26 A.M. covering High Life, Edge, and Staircase.

In the High Edge, a SS-AR-R3-D2-G avalanche was remotely triggered as patrollers were moving across the top of the Edge. Slide propagated up the ridge along the start zone some 300′ as one of the party stepped into unconsolidated snow. 3.5′ crown running on the ground. No avalanche control work had been conducted in this area since January 21.
After triggering this slide, the group moved into the Staircase, throwing five explosives in the area of our typical event start gate. This area had been boot packed twice early in the season, an apparent success of our boot packing program. As the group moved into the right side of the Staircase (Tom’s) they remote triggered another avalanche. SS-AR-R2-D2-O with a 2′ crown. This area was ski packed on Jan. 28, Suspected failure on buried surface hoar layer.
Moving further right in Staircase, the group triggered a SS-AS-R3-D2-G in Dead Bob’s. This was triggered with ski cut, resulting in a 3′ crown running on facets at the ground. This path had already slid to the ground on Jan 24 with a 6# air blast.

Photo is of the remote triggered avalanche in Edge,

WEATHER: Sky Cover: Scattered; 5 degrees F. at 9:00 A.M.; Peak gust SW at 56 mph overnight.

SNOWPACK: 65″ Snowpack Depth at bottom of High Lift. 6″ new with .08% density and .5″ water. Storm total 33.5″

UPLOADS:

Edge-Avy

Avalanche Gothic north bowl

CB Avalanche Center2014-15 Observations

LOCATION: Crested Butte Area
DATE OF OBSERVATION: 03/05/2015
NAME: Gary Dotzler
SUBJECT: Avalanche Gothic north bowl
ASPECT: North, North East
ELEVATION: 9,800-12,000

 

AVALANCHES: Pic of Gothic’s north /northeast bowl that slid down to the river. Not sure when it went but for sure recently. In one pic you can see the outhouse that was covered by the same slide path last winter (13/14). This slide didn’t quite make it that far,

WEATHER:

SNOWPACK:

UPLOADS:

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Photos from recent avalanche cycle

CBAC2014-15 Observations

 

Photos by Zach Guy

Snow cat triggered slides above the Nordic CenterDSCF5669-001

Fresh windslabs that ran yesterday or last night on the SE face of Mt. Owen

DSCF5672-001

Northwest Bowl in the Anthracites, ran wall to wall

DSCF5675-001

Southeast face of Mt. Afley

DSCF5678-001

 

East to Northeast face of Mt. Owen.  I think the looker’s right half ran yesterday or last night, the looker’s left ran earlier in the storm.  DSCF5680-001

Mountain Weather March 5, 2015

CB Avalanche CenterWeather

Date: 03/05/2015

Most weather stations are hovering at or below zero this morning. As a high pressure ridge builds over the west coast, we will see dry northwest flow set up for the next 7 days or so. This pattern brings a gradual warming trend under mostly clear skies and mild winds.

Gothic Update

CBAC2014-15 Observations

Only light to moderate wind Tuesday by mid day with light snow picking up at sunset last night.  The 24 hour totals are 8″ new snow with 0.55″ water as snowpack reached 59½”, now at 59″.  Cloudy  currently with thankfully no wind and cooler at 10ºF.  Flat light and little visibility so nothing new on slides to report but run-out zones show nothing new that i can tell.  billy