Page 18 of "Effective Warning Systems", outlines a seven step process for an effective warning response. Perceiving the warning (hear, see, feel) Understanding the warning Believing that the warning is real and that the contents are accurate Confirming the warning from other sources or people Personalizing the warning Deciding on a course of action Acting on a decision Using either the Hurricane Irma After Action Review or the article regarding the decision to evacuate Houston, did the leadership involved in the response efforts fail or succeed to follow these processes? Was coordination between various levels of government effective in developing a common warning message