How wonderful that your sis is ok. She must be devastated though, poor dear. I just can not imagine. My mom was born and raised in Joplin. I still have family there, but have not had contact with them since I was a little kid. One of my sisters looked some of them up years ago though and said they were lovely people. She is going to try and contact some and see how they are.
My mom would have been so upset with this disaster, but she passed away 13 years ago. I imagine she is greeting her family up there in Heaven if they were taken by the tornado. Her and Grandma, probably having a family reunion. Of course I hope they were spared, but with such a small population the chances are slim.