Minor whumphing and cracking was observed on skin track with noticeable difference in snow structure from temperature variation through storm. Two skiers skied north facing ridge. Near Silverton Mtn's grassy run. Half way down skier 1 dipped over convex rollover and saw cracking behind with moving snow. Skier 1 carried speed and skied in front of small slide. Skier 2 came to edge of convex rollover and triggered a secondary slide over the top of the first. Both skiers skied out safe.

Skinned up Grassy on Silverton Mtn heli terrain. Skied ridge to the north on north to northwest facing slope.