Like Baalamsass said
Make sure you have a full tank of gas and if possible a couple of jerry cans full as well that you can take to extend your journey.
water and food for 2 weeks if you have to shelter in place
$2000 in cash if you can’t get to your bank and the power is down
as far as following the directions of the elders, many of them can’t organize their own lives properly so I wouldn’t take their advice.
Follow your local government disaster leaders. They are actually trained in how to keep people safe