After the events of last night's episode (see our Grey's Anatomy review for a full discussion of "Do You Believe in Magic?") it's all come down to this. Two stormy episodes to wrap up Season 9.

Clearly, this storm isn't going to miss Grey-Sloan MH at the last minute, either.

As you've likely read in our Grey's Anatomy spoilers section, and you can see in the preview below, the hospital staff must prepare for a massive weather disaster in Seattle. Meanwhile:

• Owen yearns to be a dad as he bonds with Ethan
• Meredith and her unborn baby are put in peril
• Jo turns to Alex during a crisis

Check out the first promo for "Readiness is All" below ...

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.