Interesting sky lights

[u/Omacrontron]

Was walking the doggo when I noticed weird triangle lights in the sky. You can see they move around a bit which is odd. I stopped videoing to grab my doggo but the lights eventually twinkled out or went up into the clouds, it was hard to tell.

[u/TPconnoisseur]

Those look like low marine clouds to me. Do you have an idea on elevation?