This image was captured on October 4th, 2025 at 6:39pm MDT. This was taken on Oxford Road, a few miles Southeast of Longmont (40.11716°N, 105.06409°W) while I was facing Northwest. The main cloud formations featured in this photo are stratocumulus clouds (toward the right) and nimbostratus clouds (toward the lower left). The atmosphere for these clouds appears to be slightly unstable at the formation of clouds, around 450 mb (CAPE value of 123.9 also indicates this slight instability).

Skew-T diagram:

Original unedited image: