Pat, he doesn't really stay calm if I'm with him he just doesn't bark his full head off. When I know in advance there's going to be thunder I'll put him in the basement in his crate with the lights on (so he doesn't notice the lighting too much) and a radio on LOUD (to try to muffle some of the thunder)
But when it catches us off guard, and he hears or sees the full brunt of it he flips out and won't calm down until hours after the storm has passed.
We haven't had any snow on the ground, just flurries that melt as soon as it hits the ground.

Thank you all for your comments!
Buddy and I both hope for a winter with no more thundersnow.
Just LOTS of snow on the ground!!