Manto nivoso

Copper Basin

Izzy DavisSilver Valley & Bitterroot Mountains
Ver en el mapa
Foto de la observación 1Foto de la observación 2Foto de la observación 3

Quick report

Experienced a stable snowpack, but didn't step into wind loaded or shallow steep rocky areas. Saw no natural avalanches and didn't experience any signs of instabilities. Topped out at 6,300ft, and observed the rain from 12/7 had saturated the snowpack all the way to the peak. Frozen buried surface hoar observed on East facing slope @6,200ft, but unreactive in pit tests. 

Observed no signs of instability within pit results or throughout the tour.

Weather

Air Temp
26
Cloud Cover
broken
Wind Loading
moderate
Recent Snowfall
0
Snow Avail For Transport
moderate amounts

Mostly cloudy, with the sun occasionally breaking through the high clouds. 25-28 degrees most of the time with calm winds.

Snowpack

@5,200ft on a SE facing slope the HS was 97cm. The recent rain crust from 12/7 was 19cm down,  5cm thick, supportable with a hardness of P-. @6,200ft on an E facing slope the HS was 132cm, with a layer of buried surface hoar 33cm down that had been fully saturated from the rain and frozen. The SH feathers averaged 1-2cm. No propagation in pit tests, and PST 73/100END @100cm on the frozen SH. Experienced a stable snowpack, and it appears the 12/7 rain crust has kind of re set the upper snowpack. Everything we skied and traveled on today was on top of the new crust, we never punched through below it. Some near surface faceting on the very top of the snow at upper elevations.