Why did Kathy move to Arizona in Zeitoun?

Kathy deals with growing tension with her family in Baton Rouge, who disapprove of her hijab and her refusal to eat pork. Realizing that New Orleans will be uninhabitable for weeks because of the storm, she decides to move the kids to her friend Yuko's home in Phoenix, Arizona. She and Zeitoun maintain daily phone call updates, which keep Kathy's fear at bay.