I’m quite new to cross-country skiing, so I am not sure. But I think this is a sign and I imagine that there is some kind of message on it that is intended for me. Being new to this, I found it quite difficult to read.
Maybe it just said “It’s winter, keep cool!” In that case, I got the message.
(Click the image, to be redirected to my Flickr site where you can watch it in full resolution.)