Taken in Northern Colorado Springs, facing northwest.
18 September 2023 at 19:04
The photo shows a layer of nimbostratus clouds smearing virga in the foreground, with stratocumulus clouds illuminated by the setting sun. Above both of these layers, an ominous altostratus layer is ribbed with mamma.
The corresponding Skew-T plot shows an atmosphere that is unstable up to about 5000ft above ground. Above that level, the atmosphere appears to be largely stable.