You've already seen some of my suggestions. Get cash, now. ATM's will not work and credit card readers may not work, either. Fill your gas tank!
A great checklist is here.
Evacuation supplies here. Note the first-aid, auto, etc.
Finally, I have the following pertinent apps on my iPhone: Disaster!, First Aid, and Emergency Radio. The latter can be used if you are on the road and commercial radio is not available.