Snow?

Hi everyone!, I'm about to start working on my Space Wolves soon, and I have a question about how to add snow to them, like they're fighting in frosty environments or glacial storms. I thought about using talcum powder or flour, but the wind would ruin the effect. Any suggestions? Thanks in advance! By the way, I already have the snow paint, but I feel like it doesn't look right, or maybe I'm missing something.