I'd worry about yourself and family first... just sayin...
But, as to your tanks. I'll almost bet getting anything batter operated or any sort of generator is out of the question, I understand many of the big box stores have sold most of their stock in that area. I doubt heating will be an issue, since it's probably going to be mid 70's or so? Your filtration will be the big thing IMO. I've seen predictions that power may be out for days/weeks. If so, the best thing you can do IMO is churn the water some to keep some surface agitation going here and there. A battery powered air pump or small generator to run the filter (and some other essential items for personal use) would be ideal.