Snow fog: Warm air hits the snow and condenses into fog.

Clouds gatherings

Going with a previous post, Eureka Springs, AR

A contrail

And just plain fog

Moose on the road to Cape Spear, Newfoundland

Steam and fog at Norris Geyser Basin, Yellowstone National Park.

Misc small gesyers near Old Faithful,

Yellowstone National Park

Ten years ago on a mountaintop in Maine.

Photos from Coit Tower

I didn’t realise the clouds were so prominent when I took this photo of some horses last year.

From a trip to Norway

seagrass

This is a contrail and the contrail's shadow and a sun dog (I think that is what the rainbow is).

Most likely an irridescent cloud. A sundog is a specific condition where it appears as if there are extra suns in the sky formed by a halo due to ice crystals...pic from the internet:

OK, I found the name of it. It's a circumzenithal arc. I have a picture of one that I took. It was straight up in the sky. It stayed there for a long time.