I've helped on on shelter drills, a couple of shelter activations (very few 'customers') and some ERV stuff

Frankly, some stuff they will have too MUCH of - some they will be totally missing, and NO ONE will accurately know what is going on for at least the first 4-6 hours or so - until shelter A,B and C all report and say "we have 15 clients, but have 40 cots, are good on snacks, but have no meals and are low on toilet paper" - and shelter B says "We have 30 clients, only 20 cots, plenty of meals and TP" - and they get a truck to go from B to A with food and TP, and back with cots

Frankly, in the intital load out - they have to GUESS, and some things get mis packed - meals usually come later. They have kits for "N" people - cots, TP etc, and frankly, they ALWAYS have snack food on the trucks - Sometimes I think if I see another box of Oreo cookies, snack chips, hot cocoa, and instant coffee with powdered creamer....