Stratocumulus and Lenticular Clouds

This photo was taken September 22nd, 2025 at 9:55am MDT. This was taken near the parking garage by the CU Boulder engineering center at 40.00733°N, 105.26000°W, while I was facing Northwest (as can be seen from the pre-cropped image). The lower section of the clouds appear to be stratocumulus, while the higher portion of the cloud appears to be altocumulus and lenticular clouds. The atmosphere for this cloud appears to be slightly unstable.

https://www.flowvis.org/wp-content/uploads/2025/10/Brothers_Clouds1Report.pdf

Ignition of an oxy-acetylene torch, filmed at 3000 frames per second. Ignition took 0.7 seconds, while the flame front traveled at 2.5 m/s.

A premixed oxygen-acetylene flame shows instabilities at its edge.

Buoyant plumes of incense smoke, assembled and colored in Photoshop

A droplet of Axe golden glitter shampoo creates a region of low surface tension in dyed milk, resulting in Manrangoni flow.

Dye visualizes mixing in shallow pools of water on a vibrating plate. Cymatics fans take note!

A droplet of Axe golden glitter shampoo creates a region of low surface tension in dyed milk, resulting in Marangoni flow.

Food dye in milk illustrates laminar mixing by vortexes and stretching.

Dish soap on a Q-tip drops the local surface tension of dyed milk_ the higher surface tension at the edges pulls the dye outward.

Dyed water beneath vegetable oil was sheared by a moving obstruction, resulting in a Kelvin-Helmholtz instability.

Light interference shows minute variations in the thickness of a soap bubble skin.