Solar initiated roller balls, skier initiated roller balls and very small skier triggered wet loose activity
Observation: Turnagain
Location: Tincan Common
Standard route up to 3300′ on ridge line above Hippy Bowl. Looking at new snow amounts, rain/snowline, and for buried facets/surface hoar on northerly aspects above 3000′.
Observer Comments
Weather
Mostly cloudy becoming partly sunny
Very light precip rain/snow initially
Temps in the 30Fs at road level: 1000', 20Fs at upper elevations.
Snow surface
1000': 2" of new snow that had been rained on. Rain on snow was present until 1500'.
1500': 6" of new snow over moist crust
2000': 10" of new snow over moist crust
2500': 10"-15" of new snow over crust
3300': 15-20" of new snow over crust on southerly and on northerly over snow from last Saturday's storm resting on small facets/ buried surface hoar
Snowpack
See APU ob for pit at 2200' N aspect
Pit @ 3300' on NW aspect 25* slope showed propagation propensity on a layer of small facets and buried surface hoar 50 cm below the surface. This snow total (slab) included the 4 inches that fell last weekend. See photos and video. CT 21, ECTP 23, ECTP 27
New snow at 1000'
New snow at 1500'
New snow at 2000'
Wind effect and roller balls
Hippy Bowl roller balls
Tincan Pit @ 3300' NW aspect 50 cm slab
ECTP 23 in Tincan Pit @ 3300' NW
Weak layer: small facets/surface hoar
Common bowl with mini skier triggered wet loose activity
Roller balls above the uptrack