A new clip from tonight's Grey's Anatomy shows the staff preparing for the storm.
And that's not all. There's an event that could complicate matters significantly.
While the scene from "Readiness is All" starts out in less interesting fashion than the other four Grey's Anatomy sneak peeks - we all knew the storm was coming - it ends in surprising fashion.
For one character in particular, this day just got a whole lot worse:
Will she be okay? And how will the events of this week play out?
Share your comments and predictions with us below ...
Want more Grey's Anatomy?
Sign up for our daily newsletter and receive the latest tv news delivered to your inbox for free!