At a minimum, you should have the basic supplies listed below:
Water: one gallon per person, per day (3-day supply for evacuation, 2-week supply for home)
Food: non-perishable, easy-to-prepare items (3-day supply for evacuation, 2-week supply for home).
Flashlight
Battery-powered or hand-crank radio (NOAA Weather Radio, if possible)
Extra batteries
First aid kit
Medications (7-day supply) and medical items
Multi-purpose tool
Sanitation and personal hygiene items
Copies of personal documents (medication list and pertinent medical information, proof of address, deed/lease to home, passports, birth certificates, insurance policies)
Cell phone with chargers
Family and emergency contact information
Extra cash
Emergency blanket
Map(s) of the area
Consider the needs of all family members and add supplies to your kit:
Medical supplies (hearing aids with extra batteries, glasses, contact lenses, syringes, etc)