[Samurai]

I think the first thing you should do is log off and shut down your computer!

After that, it depends on whether you expect to stay in the house or not.

If you expect to stay in the house, Max Brooks recommends filling the bathtub with potable drinking water. Flood water will be polluted and toxic for drinking, and your supply of fresh water could run out.

If you plan to leave, pack for a hike, bring lots of dry socks and rain gear, emergency lights, camping gear, food you can carry, water bottles, and your sleeping bag.

Pack a standard sidearm, but don't freak out about loading yourself down with guns. The majority of people you run into will be interested in cooperating and getting through the storm. You'll have no greater chance of running into a "bad guy" just because there's a flood on than if you were going about your normal daily routine.