If the town got wiped off the map, the should still be able to vote elsewhere.
This is where early voting opens opportunities. The mobile option is nice. Allowing them to vote in other precincts would be good.
Part of election security is election resiliency. Every precinct should have a crisis management plan with potential backups in the event of national or made-made emergencies
Originally Posted by HDGristle
This is also what provisional ballots are for, too.
If you mail in your ballot, but you aren't sure it was received (or some dickwad burnt a ballot box), you can submit a provisional ballot on election day. If it turns out that your mail in ballot wasn't counted, then they are able to count your provisional.