February 16


Gobblers Knob

Bowman to Yellow Jacket, up the ridge to the top of the Cabin run, descended continuing out Pole canyon to the Porter Fork road.
Elevations, slope angles and aspects:

6200-10200’, angles to 35°+, north, and west.

Avalanche activity:

Middle or Depth Hoar bowl in Alexander, east northeast facing had two of the chutes slide out, cornice fall trigger. Recent, but timing unknown. 1’-2’ deep, distance unknown. The remainder is still in place. The south half of the east chute in upper Alexander also slid, with a cornice fall trigger. Sam depth and timing. That one did run out into the flats, over a thousand vertical.

Cornice kicking in Toots to boot produced large appliance+ drops with only surface sluffing the result as best I could see.

Slopes skied:
Cabin run, from snow line as it is missing on the ridge. Pole canyon staying on the east side, west facing portion of the gully.
Snow surface and conditions:

There was a skiff of snow at the trailhead. Rain or snow was mixed to somewhere around 7000’. Snow above that elevation. 4”-6” new snow. Winds increased with elevation and were building large cornices on the ridges east facing  The northwest facing was scoured with a zipper rime crust till the Pole canyon choke. Lower elevations later in the day had proceeded to melt what snow they received

Mild temperatures, winds from the west, gusting over 30mph along the upper elevation ridges. Less, with decreasing elevation.

A new bout of wind and high density snow have further added to the puzzle. A new round of the pockety avalanche activity was also observed on the easterly aspects. I’d guess, with a couple of days of settlement, the last storm has settled into a cohesive slab, especially with the mild temperatures and wind. This is bridging the facets. A new round of dense snow adds another bridge. Results would be; some slopes have overloaded and naturals observed. Those which didn’t can be separated into categories of wind scoured and wind loaded at upper elevations. The loaded ones would be on a hair trigger, requiring a good sized thump because of the bridging or simply needing a trigger in the sweet spot. It may take a skier or two because of the bridging. Kinda trcky?
Avalanche paths that ran may be reloaded, especially those which ran from the last storm  a week ago. West and southerly aspects retaining a solid crust would have only a localized hazard. East and north, your best guess?


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