Mountain Weather 3/27/2017

CB Avalanche CenterWeather

Date: 03/27/2017

Temperatures dipped into the low 20s last night, under clear skies and generally light to moderate west winds at ridge top. Clear skies this morning will allow temperatures to rebound, before high clouds work into the area from the southwest this afternoon. Tomorrow looks stormy with snow (4-8″) and increasing northwest winds. Looking ahead, we get a breather on Wednesday and Thursday before another low pressure system and snow arrives Friday.

Irwin Tenure

CB Avalanche Center2016-17 Observations

Location: Kebler Pass Area
Date of Observation: 03/27/2017
Name: Irwin Guides
Subject: Irwin Tenure
Aspect: East, South, West
Elevation: 10,000-12,000

Avalanches: none
Weather: FEW to OVC skies back and forth all day with pulses of convective snowfall not accumulating at all. Solar radiation helped soften snow surfaces. Light winds with Moderate Gusts from the NW and then W not really transporting any snow, High temps 36F / 25F:
Snowpack: 1-2″ of fresh snow overnight skied ok over smooth supportive surfaces, Sun came in and out today warming the snowpack. Westerlies were a bit of sticky pow while east, south, and sw were more spring like schmoo. All surfaces are supportive, not breakable and the pack is mostly transitioned to Spring isothermal but new snow sticky in places. No threats of wet loose today.

Irwin Tenure

CB Avalanche Center2016-17 Observations

Location: Kebler Pass Area
Date of Observation: 03/25/2017
Name: Irwin Guides
Subject: Irwin Tenure
Aspect: East, South, West
Elevation: 10,000-12,000

Avalanches: none
Weather: Thin clouds all day but warm temps and strong solar radiation, Some green housing effect helped as well, calm winds & High Temps: 47F / 35F
Snowpack: Frozen locked up in the morning and then good spring in the pm. Straight west still transitioning hot pow while East, South, & SW were more mature corn and spring Schmoo. Rocks appearing all over the place behind blind rolls and mellow terrain

Mountain Weather 3/26/2017

CB Avalanche CenterWeather

Date: 03/26/2017

Snow showers associated with the fast moving trough of low pressure will exit Colorado today, with clearing skies and decreasing northwesterly winds throughout the afternoon. High temperatures will climb into the low 30s at 11,000ft and drop into the upper teens tonight. Our next storm system looks to arrive Monday afternoon and produce another round of light to moderate snowfall through Wednesday night.

Mt Axtell

CB Avalanche Center2016-17 Observations

Location: Crested Butte Area
Date of Observation: 03/25/2017
Name: Zach Guy
Subject: Mt Axtell
Aspect: North, North East, East
Elevation: A/NTL

Avalanches: Skier triggered a 3″ by 8′ wind slab in a north facing couloir ATL, harmless in size. No other instabilities in steep terrain.
Weather: Increasing clouds. Warm temps.
Snowpack: 1″ of settled storm snow, mostly scoured away ATL except in cross loaded drifts up to 3″ or 4″ thick. Some minor rollerballs on cross loaded easterly aspects (see photo), but not enough snow to slide.

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Mountain Weather

CB Avalanche CenterWeather

Date: 03/25/2017

Our intrepid Aspen-bound racers are being greeted by a cloudless sunrise this morning in the heart of the Elks. Mountaintop temperatures hover near 20 degrees under calm winds. Fantastic weather is on tap for the rest of the day, with temperatures forecasted to climb into the mid 30’s. High-level clouds will lower and thicken this afternoon ahead of weak Pacific trough making landfall today. We will see light snow showers develop overnight and wind down tomorrow morning as this fast-mover crosses over Colorado. High pressure redevelops into Monday.

Irwin Tenure

CB Avalanche Center2016-17 Observations

Location: Kebler Pass Area
Date of Observation: 03/24/2017
Name: Irwin Guides
Subject: Irwin Tenure
Aspect:
Elevation:

Avalanches:
Weather:
Snowpack: 5″ of snow overnight w/ .45″ SWE. Sun and warm temps transitioned snow from dry to wet by mid day. 5″ settled to 2″ by end of the day. It felt like when the snow was transitioning it could produce loose wet and not wanting to bond with crust underneath but then got wet and felt well bonded.

East Beckwith Wet Slab

CB Avalanche Center2016-17 Observations

Location: Kebler Pass Area
Date of Observation: 03/21/2017
Name: Michael Mobley
Subject: East Beckwith Wet Slab
Aspect: North, North East, East
Elevation: 12,000

Avalanches: Snowmobiling on Monday evening I spotted this wet side on East Beckwith. I threw the sled in a couple for scale.

Fx Note: this slide looks to have failed as a large wet slab avalanche, on an ENE facing slope between 10,000-12,000ft.
Weather:
Snowpack:

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Mountain Weather 3/24/2017

CB Avalanche CenterWeather

Date: 03/24/2017

Just like tired spring breakers after a big night in town, the closed low pressure system responsible for unsettled weather last night is spinning itself out of the Colorado Rockies and onto the eastern plains. Area accumulations were generally light, 2-4” on Kebler Pass and CBMR, with 9” new snow at Schofield Pass with unusually well behaved NW winds gusting into the 40mph range.

Today, skies will gradually clear throughout the day, and northerly winds will decrease. Temperatures will rebound, with highs in the mid to upper 30s. Our next weather maker looks on track for Saturday night into early Sunday with light snow accumulations expected.

SPECIAL GRAND TRAVERSE WEATHER: The racers from Crested Butte to Aspen dodged a bullet, and got exactly what most had hoped for overnight. A light refresh of snow, and merciful wind. The Upper Taylor River SNOTEL is showing 6” of new snow, a perfect refresh to improve course conditions, but not change avalanche concerns. Look for partly cloudy skies overnight, with low temperatures at Star Pass in the mid teens during the early morning hours. Should be a perfect night of racing, good luck to all, watch those sneaky creek crossings, and keep those feet dry!

Slate River obs

CB Avalanche Center2016-17 Observations

Location: Paradise Divide Area
Date of Observation: 03/23/2017
Name: Zach Guy
Subject: Slate River obs
Aspect: Various aspects observed from valley bottom
Elevation: Below treeline

Avalanches: Not much for recent wet activity up the Slate to Poverty Gulch; a couple of minor D1’s in the past few days on various aspects from extreme/rocky terrain, and 2 larger wet loose off of Climax Chutes, one of which I reported yesterday, the other likely ran yesterday as well. See photos.
Weather:
Snowpack: 3-4″ inch refreeze overnight; supportive to boots in the a.m. unless you took a hard step. Left early before the snow softened.

D2. NE aspect BTL

D1.5 NE aspect BTL. Gouged to the ground up higher in a thin, rocky area.