Sterling AST 1

<p>Obs from AST 1 this past weekend (Jan 8th) at Sterling Snowmobile Area. Saw 1 size 2.5 and 1 size 1.5 from steep, convex terrain near ridge-top on Portuguese Hill. SW aspect at ~1450 m. Larger avalanche initiated in windslab and stepped down to persistent weak layer, suspect Jan 25 surface hoar. Reports from Facebook indicate avalanches were rider triggered. We primarily rode previously tracked terrain.</p>

Terrain Ridden

Mellow slopes, Convex slopes, Steep slopes, Open trees.

Terrain Avoided

Convex slopes.

Avalanche Conditions

30cm + of new snow, or significant drifting, or rain in the last 48 hours.

Whumpfing or drum-like sounds or shooting cracks.

Slab avalanches today or yesterday.

Snow Conditions

Hard, Wind affected, Powder.

Weather Conditions

Cold, Sunny.