We toured in the Camas Lake area, looking at the extent of wind slab formation and if reactive persistent grains exist.
• Snow surfaces became more wind-hardened above 7,400.
• Wind slabs on small wind-loaded test slopes were stubborn to trigger, and minimal cracking was isolated directly under skis.
• Looking across the canyon south and easterly aspects were scored due to stronger funneled winds. North and westerly aspects show signs of wind loading.
• Persistent grains were present near the base of the snowpack and were not reactive in column tests.
• We accidentally triggered a small soft wind slab avalanche on a steep rollover mid-slope at 7,400 feet on a north aspect. This avalanche was harmless in size, but similar slides could become more of an issue with more wind loading, slab hardening, and depth.
• Plenty of snow is available for wind transport.
Winds were calm for most of the tour. We experienced a light westerly breeze at 8,000 feet on the ridgeline. Various cloud layers hung below 7,000 feet with clear skies above. It was lightly snowing as we toured through lower elevations.
|D1||SS||I-New/Old Interface||6 inches||