Modern consoles have surge protection, if you want to protect the console themselves,put them safely in a trash bag,tie put one over that one and tie it
Attic if you have one or pack it all up and take it with you if you leave the area lol our house was flooded from Katrina but mostly everything in the attic didn't get touched by any water
others have mentioned. but I'd really just recommend ziplocs and those vacuum sealed bags you see on TV. put everything of value in a Rubbermaid container after sealing them up.