I always look at snow days as a great opportunity to catch up on indoor activities that I never seem to get around to – updating my blog on a much more regular basis, reading magazines that I have earmarked and emailing with friends and colleagues.
As an exercise:
Set a time for 10 minutes and write out a monologue from your main character’s point of view, detailing how they would respond to the snow?
Do they see it as a source of amusement like the kids in The Dog Who Stopped The War? Or maybe it’s an obstacle in your film, as it was in Alive or Die Hard 2 or The Empire Strikes Back?
If you take the time to learn how your characters will react to something like a snowstorm, positive/negative/indifferent, you’ll gain interesting insight into how they react to other things.