Sticking around when there is at least a 50% chance of a disaster occurring (hurricane, flood, landslides, tsunami, wildfire) is just plain silly. Part of your planning should be to determine the trigger point for evacuation as well as identification of an evacuation site and a route to get there. Better yet, plan multiple alternate routes as well.
Freeze-dried food is nothing new. As early as the 13th century, the ancient Quechua and Aymara people of Bolivia and Peru pioneered a form of the process by exposing potatoes to the freezing temperatures of the Andes overnight, then drying them in the sun. In 1937, Nestlé used industrial technology to create the world’s first freeze-dried coffee, and in the 60s and 70s, the US military shipped freeze-dried food rations to the troops in Vietnam.