This is an image I took of a large cloud on Nov. 24 2020, using a Pixel 2 XL phone camera. It was taken at 10:33AM, near the Sunlight Mountain Resort in Glenwood Springs, CO. This is a stable atmosphere, with the clouds seemingly mixing with drifting snow. I believe the higher visible clouds are alto/cirrocumulus, and the lower fog-like parts are snow.
The Skew-T diagram for around this time is here: