NYC code high rise building has water tank on top of building. Refilled as used for domestic purposes by small pump. After tank drained for domestic purposes about 20% remains for firefighting through standpipe and sprinkler.
When my children would come home from college for Thanksgiving I changed their AWD SUV's to the winter configuration, snow tires, shovel, water, medical piss container,(funnels for the girls) diaper wipes, food, flashlights batteries, candles, matches, tarps, ....etc.
The sleeping bags I put...
My father was an old time fire chief in NYC. He told me "At a fire you can have 101 things going wrong all at the same time. Put the fire out and 99 of them go away."