Hmm, seems like a good weekend for two separate 3-6" snow storms! I never thought I'd write that after all the shovelling I've been doing this winter.
I thought of that too. God's protection?
There's a fairly significant potential for 20"+ inches total from the two storms combined.
The second storm, being later, is harder to predict, and the media and NWS quite rightly are focusing on the first storm. But there's a ton of potential for a LOT more than 6" in DC from the second storm.