What is TSHTF?
TSHTF is The Shit Hits The Fan…. this is more of a localized disaster. A tornado hits you or a hurricane could fall into this category but total recovery is possible within a reasonable timeline… say 6 months. If it takes a generation to get back to normal… it is way past TSHTF
So I think of this to be more of a week without power… if your power goes out for 24 hours, chances are you did not lose all the food in your freezer… but if it is off for a week… you better be throwing out a lot of your perishable food.
NOTE: Want to test how prepared you are? Go turn off your main power breaker to your house for 8 hours and see how you handle it. What did you learn? Any changes to your plan?