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Roman Nose

Chris BilbreySelkirk Mountains
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Foto de la observación 1Foto de la observación 2Foto de la observación 3

Quick report

While the weather feels like Groundhog Day, the snowpack continues to evolve during our current dry weather spell. Extensive faceting driectly below the widespread surface crust does not changing overall conditions at present, but is setting the stage for a worrisome set-up if winter and new snow loads return.

Weather

Cloud Cover
clear
Wind Loading
none
Snow Avail For Transport
small smounts

Lots of sunshine above the stratus deck. Clouds encompassed both Caribou and Ruby passes. Winds were generally light but started to bump in speeds later in the afternoon.

Snowpack

We found 8 to 10 inches of weak, faceted snow (F to 4F-) below today's variable snow surfaces across all elevations. On the surface was a firm supportive curst on east through south to west aspects that was generally an inch thick. On shady, northerly slopes, the same crust was much weaker and breakable. The crust had completely broken down in isoalted areas of shady slopes and had similar depth of faceted snow. As we migrated further down in elevation and away from ridgelines, the surface crust was not as supportive but also varied greatly on similar slopes. This will likely throw an interesting mix into the equation if and when a new slab forms above. Sheltered areas are growing a new batch of surface hoar on top of the surface crust and some feathers were heavily rimed from recent low-lying fog/ clouds. Lots of broken cornices and large chunks on slopes below. These likely gave way during the rapid warm-up and rain around January 12.

Avalanche

Size
D2
Type
SS
Count
3
Aspect
E
Elevation
6800 ft

Several natural avalanches and one (unknown trigger) that are likley a week old. One avalanche covered many snowmobile tracks on the slope below, so unsure if this was triggered by the group or failed at a later time and then covered the tracks. Lots of cornice falls and sags from the rapid warm-up around January 12.