Grey's Anatomy's Season 9 finale has a date, a title and a foreboding synopsis.

It certainly seems fitting, in a sense, that following the severe weather events that have struck the U.S. in recent years, a natural disaster is heading straight for Grey Sloan Memorial Hospital.

It also seems fitting because this is what Grey's Anatomy does in its finales.

After several cryptic tweets from showrunner Shonda Rhimes, sources close to the ABC medical drama confirm that the Grey's Anatomy Season 9 finale will feature a superstorm, a la Sandy.

The natural disaster will begin in the penultimate episode of the season, "Readiness Is All," on May 9, with the system arriving with full force in the May 16 finale, titled (what else) "Perfect Storm."

The superstorm will affect the newly renamed hospital and "cause its staff to go into crisis mode in an hour that is being described as very intense with a lot of "major" things changing for the characters.

Shonda Rhimes says the writing staff made some "very bold [and] shocking decisions" after "very intense discussions ... I warned you about the GA finale so you could brace yourself. Hug a friend."

Gulp.

The Season 9 finale disaster comes after a season that began with the loss of Lexie and Mark, followed by uphill battles as the crash survivors battled PTSD, lost limbs, financial crises and loved ones.

Previous finales have included the appearance of Addison, Denny's death, Cristina calling off her wedding, George's bus crash, a shooter loose in the hospital and other emotional devastation.

Excited for what might transpire in the Grey's Anatomy Season 9 finale? What, if any casualties will the superstorm bring? Share your comments and predictions with us in the comments below!

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