Observation: Gobblers

Observation Date
1/19/2019
Observer Name
T Diegel, P Diegel, Patterson, Gregersen
Region
Salt Lake » Big Cottonwood Canyon » Mill Creek Canyon » Mill A » Butler Fork » Gobblers
Location Name or Route
Gobblers and Raymond
Weather
Sky
Obscured
Precipitation
Light Snowfall
Wind Direction
Northeast
Wind Speed
Light
Weather Comments
warmed up quite a bit during the day, including a bit of riming around noon. Not a problem, however. The wind seemed to be coming from the NE - ie across the face of Gobblers - but not sure if that was necessarily the prevailing wind, but since it was unusual in that zone, it made us wary since wily old avalanche Kowboys have been known to say "Nothing good comes from an East wind!" (see photo of an unusual little wind roll facing SW - ie from the NE wind - on the Raymond ridge).
Snow Characteristics
Snow Surface Conditions
Dense Loose
Snow Characteristics Comments
the snow started to feel a little heavy around 8k in the morning, and that sensation rose to around 9k over the course of the day. Despite the copious amount of new snow over the last few days, it didn't skin or ski deep, which made us think we were generally a pretty healthy slab - for better or worse.
Red Flags
Red Flags
Heavy Snowfall
Wind Loading
Avalanche Problem #1
Problem
New Snow
Trend
Decreasing Danger
Problem #1 Comments
from P Diegel: At about 10:30am, 9,500 ft, just clear of the trees on Gobblers Shoulder: Isolated 3 columns, 2 failing easily about 50 cm deep with secondary failure about 40 cm deep and one that took a lot more prying. ECT 18 (see video) no propagation, but pulled out easily, failing in steps at about the same depths. on our 2nd run at about 11:15, fog rolled in with rime. Riding conditions were smooth and consistent in about 20 cm fresh somewhat dense creamy snow, rapidly getting damp and denser. Wind was swirling and erratic. We stuck to the lower angle treed shoulder out of respect for the stout slab and potential slide consequences.
T Diegel - on our 3rd climb we glimpsed through the fog what we thought was a smallish slide coming down Alan's Gully. Another party at the trailhead at the end of the day confirmed our sighting and said that the crown seemed to be sort of jagged. Unsure of the trigger, but another party of two did apparently ride their boards down an adjacent slope, but again the viz was such that we couldn't see for sure. Based on past experience with that area, I'd guess it was in the 38 degree range, NW facing, around 10k feet.
Avalanche Problem #2
Problem
New Snow
Trend
Decreasing Danger
Problem #2 Comments
Same problem, different aspects: we also skied a lowish-angle SW facing line and dug a quick hand pit on that to see how that was and the new 18" or so seemed pretty well-bonded to the old sun crust. However, skinning up the SE Raymond shoulder we poked out onto the slope as much as we dared and dug a coupla more quickies and the bond was not as good with a cleaner, easier shear than we saw even on the NW aspect of Gobbies shoulder, so we opted not to ski the SE shoulder; again, clearly on a slab since we were only breaking boot deep and it snowed a lot more than that, again that weird E wind may have created funky cross-loading, and the combo of the nice shear in the quick hand pit and the implications of a slab avy on that open slope above the trees seemed too much, so we opted out of that and went for a more conservative line.
Tho the warm temps may help tighten things up on all aspects?
Video
Today's Observed Danger Rating
Considerable
Tomorrows Estimated Danger Rating
Moderate