Manto nivoso

East of WMR

Avalanche.org observerWhitefish Range
Ver en el mapa
Foto de la observación 1Foto de la observación 2Foto de la observación 3Foto de la observación 4Foto de la observación 5Foto de la observación 6Foto de la observación 7Foto de la observación 8

Quick report

*Wind exposed wide-open South aspects were a patchwork of wind-scoured exposed crust and small pockets of windslab up to a foot thick. *Small drifts on the South side of ridgetop from the weekend's N and NE winds. *Top of N-facing forested bowl at 6400' had some dunes from cross-loading and upslope snow transport. Not reactive to ski cutting. *Skirted around these drifts to ski quality pow unaffected by the wind. *Sloughing was slow and short-running on 38 degree pitches on N aspect around 6000' *Very minor cracking around turns in some locations. No instability observed.

Weather

Air Temp
below freezing
Cloud Cover
overcast
Wind Loading
previous
Recent Snowfall
30 cm since 3/21
Snow Avail For Transport
moderate amounts

Partly cloudy and 10 degrees F at 8:00am. Mostly overcast by 11:00am. Temps never climbed out of the 20's at around the 6000' level. Calm in the morning, with the occasional light Southerly breeze in the afternoon.

Snowpack

* In areas not effected by last weekend's wind or more recent bursts of sunshine, I found first hardness recent snow that ranged in depth from 5cm at 4500', to 10cm at 5200' on a West aspect, to 30cm at 6400' on a North aspect. * The recent snow sat on a supportive crust from the Equinox Meltdown almost everywhere I traveled, though the crust was not as obvious or robust at my pit location on a cross-loaded N-facing slope at roughly 6400'. *At this location, HS was over 250cm, and the Feb. 3 crust (Pencil hardness, 3cm thick) was 140cm from the surface. *ECTX x1; CTE down 20cm Q3 x3; CTH down 60cm Q2 x3. * On an East aspect at 5800' a hand pit found 25cm F hardness snow that did not shear cleanly off the most recent crust. The uppermost crust was 10cm thick in this location, with a thick layer of moist snow below it.