| Recent Avalanches? | Yes |
| Collapsing (Whumphing)? | No |
| Cracking (Shooting cracks)? | No |
Observation: Summit
Location: Manitoba Treeline
11:00-Standard Uptrack on Manitoba groomed trail towards Lower Treeline bench. We moved into alpine terrain to assess snowpack stability, conduct pit tests and to confirm a persistent weak layer trend at treeline and above. We encountered no avalanches or incidents throughout our tour.
Obvious signs of instability
Observer Comments
Heavy wind scouring was visible on adjacent ridge lines at all aspects and above 2,000 ft.
A persistent weak layer of .5-1mm facets was found between 40-50cm below the surface.
Weather
Clear skies with no precipitation throughout entire tour trending to scattered clouds coming from the south by 4pm.
We encountered a light, 5 mph consistent wind from the NE from 11:00-4pm.
Snow surface
Surface Hoar of mixed feathers and needles, present up to 1,800 ft.
A Crust layer was present 5-10cm below surface up to 2,700 ft and we did not go high enough to find its termination.
Surface snow among our entire group
Snowpack
Manitoba Treeline, 2pm
EL 2,700, W Aspect, 23° Slope, -11° C,
Height of Snow varied from 110cm to 190cm
LAYER OF CONCERN: Facet layer of .5-1mm
Pit Tests:
On a .5-1mm facet layer, 40-50cm below surface we received results of:
CT 19-25 RP
ECTP 19-25
PST results varied from 100/100 END to 48/100 END @63 below surface.
ECTP 19 on .5-1mm Facets,40cm below surface