It's always a fun challenge to paint en plein air and I always end up learning something from it. It forces me to paint quickly and to make the best of the situation.
If you're using watercolor en plein air in cold weather, remember that your watercolor can freeze on you, so you may be better off with oils. It's also tough because the watercolor doesn't fully dry on the paper so your watercolor can bloom easily. Today was sunny and the ambient temperature was above freezing so I decided to use watercolor. I have done watercolors in the snow before, but I wanted to do a larger piece that had a nice sense of space to it.
The reason I love painting is because it helps me to make memories and document adventures. It almost doesn't how the painting turns out because I learned something new and I had fun. I think I'll do some more snow scenes since we'll have this snow for a while.