it is thundering and snowing. how common is that?
crowtrobot, some of my family who live down by Kansas City said they heard it too. Do you live by there? It's called Thundersnow. Seriously, check it out! :)
It's not very common, but it's really neat, when it happens
Usually the lightning is pink, too! I seen it myself, during the Blizzard of '77 in Western NY!
I've only seen it a couple of times myself. And here in New England I've seen a LOT of snowstorms.
More common than you may think,I live outside of Philadelphia and have witnessed this a few times.It is pretty crazy though,you can actually get struck by lightning in a snow storm.