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
This is the question “should you go to one of their camps or shelters?
I guess it depends on the situation.
At the moment all congregations are given directions to meet at the KH as first port of call, second RV point is arranged in event of KH not an option.
Its usually a retail park or something where each group meets with their group overseer and his assistant.
then depending on the situation maybe follow government advice if it’s available like a shelter or something or if not an option the nearest congregations that are available are told to offer shelter and support.
what if it’s such a large area that is affected and huge numbers lost their homes and in need of aid? Then go further afield asking congregations to take in JWs who are in need.
they always push the scripture to work good towards all but especially those related in the faith