20210131_150259

Buff Pass: Dome

Date

01/31/2021

Location

Day #

37

Weather Forecast

OpenSnow: Sunday, Monday, and Tuesday will be dry. Sunday will be the sunniest day with highs in the 20s, and Monday and Tuesday should bring more clouds with highs in the 30s.

CAIC Zone Fx: There is a high-pressure ridge over the western US. That means dry, mild weather for the next few days. Skies will be mostly clear on Sunday. Winds in the usual windy spots are gusty this morning, but wind speeds and gusts should decrease through the day. High clouds move over on Monday, helping reduce the daytime warming. An airmass moving in from the southwest counters the clouds, with the result of daytime high temperatures similar or slightly warmer than Sunday’s. It looks like the first in a series of storms arrives on Wednesday, and stormy weather could continue into the weekend.

Temps: 22 to 27F
Wind Speed (mph): 5 to 15
Wind Direction: SW
Sky Cover: Mostly Clear
Snow (in): 0

Avalanche Danger

3,3,3

#1 Small to Large Persistent Slab NW-SE Possible across All Elevations

#2 Small to Large Storm Slab Likely across All Aspects & Elevations

Dangerous avalanche conditions. Heavy snowfall favoring portions of the Flat Tops and Park Range have raised the avalanche danger. Use extra caution or avoid travel on slopes steeper than around 30 degrees where you find more than 10 inches of new or drifted snow. Weak snow layers buried in the snowpack will struggle with this new snow load and may easily fail below you. On slopes facing north to east to southeast where denser slabs have formed, avalanches could break deeper and wider than you might expect. Look for signs of instability like cracking and collapses in the snowpack to warn you of heightened danger.

To stack the odds in your favor, stick to lower-angle slopes and avoid traveling on or below nasty terrain traps like creeks and gullies where avalanche debris can pile up deep.

Ski Partners

Drew Hyde, Brian Yoder
Stepping Out Cautiously – Conditions are improving, but there is limited confidence in extrapolations from available observations. This is common when persistent slab instabilities are becoming less likely to be triggered and for large storm instabilities in the early stages of recovery. Seek specific information about each piece of terrain under consideration before opening that terrain.

Route

Snomo from Dry Lake to Dinosaur Ridge. Parked sleds at 10000ft and toured WSW along Dinosaur Ridge to Delaney zone. Descended 2x runs: Delaney Bowl & Delaney Chute on N-NW slopes (10000 to 8900ft). Ascended both times up N. Fork Fish and up the west flank of the traditional ascent gully.

Weather

Picture-perfect sunny day with high temperatures rising to the upper 20s to mid-30s. Clear, calm, and chilly (15F) in AM and warming up to freezing levels in the PM.

HSN24

20cm

HSN48

20cm

Precip

NO

Sky

Clear

Winds

Calm

Temps

15F-30F at Tower

Ski Pen

15cm

Foot Pen

30cm

Snowpack Observations

HS generally 140cm on north-northwest aspects BTL. HN24 20cm non-wind affected. Snow profile on WNW BTL 9200ft revealed HS of 145cm. 100cm progressively harder slab from fist to 1 finger sitting on 45cm basal facets. ECTP25 SC below a 1cm buried melt-freeze crust 60cm down. No cracking or collapsing.

Avalanche Activity

New snow sluffing off naturally on steep solar aspects. Easy skier-triggering of sluffs on steep shaded aspects.

Suprises

Solar input a bit stronger than anticipated. The upper bog closest to Dinosaur ridge caught us by suprise.

Take-aways

Beware of the middle of the Dinosaur bog! Snow-bunjies work great. Bring some rope for sled rescues.

Challenges

Getting Yoder’s sled unstuck from the middle of the bog

Riding Quality

Good skiing on shaded protected aspects BTL with 25cm of pow on top of a supportable mid-pack