Water is vital. Have enough and know how to purify it during an emergency.
Prepare for the "just in case" situations by having enough non perishable food.
Have a back up plan to power the appliances and lights that you will need in case of a power outage.
Be able to communicate with loved ones in the event that the cell towers fail.
Have access to cash if the ATM's are not working.
Capture rain and purify it as a ready source of water.
Local response resources
Know and be able to contact local emergency resources.
Much more ...
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