ROB72 had some very good points to work off of. We posted a tornado procedure to assist people with customization of their plan (http://www.phillipsllc.com/tornado_emergencies.asp). In each tornado assessment we have participated in, the core points of emergency communications to stand up the plan, movement away from windows and if safe (which is quite challenging for high acuity areas or long term care facilities - more appropriate for Assisted Living / Senior Independent Living) moving down are all consistent actions. There are only a handful of disasters that facilitate training for staff on immediate response: fire, tornado, earthquake, active shooter, loss of commercial power / emergency power and loss of medical gases. A few others that can be thrown in based on where you are and vulnerability, but this is a good starting point.