Observation: Summit

Location: Manitoba

Route & General Observations

Climbed Manitoba from milepost 48 pullout and up along the NW ridge. Lots of signs of previous wind but no red/yellow flags. No recent avalanches visible on neighboring mountains.

Weather & Snow Characteristics
Please provide details to help us determine the weather and snowpack during the time this observation took place.

Overcast with thin, high clouds most of the day. Clouds started to thicken around 1430 with very light snow at times. Wind calm all day including at the summit.

Snow surface

Frozen sun crust in the trees up to 2100'. Turned to 1-3" chalk on fairly dense wind-affected surface at higher elevations. The entire W bowl had signs of previous wind transport.


Hand pits at low elevation showed 2" sun crust and additional 6" layer breaking with moderate force and Q3 fracture quality. At higher elevation wind slab also broke with moderate force in hand pits. Didn't do formal stability tests since terrain was kept below 30 degrees. On NW ridge at 3400' in a wind-loaded area HS was 295 cm. Dug ~1m deep and snow was almost all 1F below the top few inches with no facets or crusts in that depth.